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Giganetix User Manual

1. 0 15 30 45 60 75 90 105 120 135 150 165 180 195 210 225 240 255 index 255 255 Output Image Figure 141 Enhancing contrast of an image using look up table 1 19 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 7 Image Processing in GigEVisionSDK Figure 142 shows the same purpose by a complex function and illustrates that the implemented algorithms can be arbitrarily complex However the calculation for generating look up tables will be executed only once index value Input Image index 255 255 Output Image Figure 142 Example 2 of enhancing contrast of an image using look up table Look up table in GigEVisionSDK In the GigEVisionSDK the ImageProcAPI provides the programming interface for generating and modifying look up tables The bit depth and image type supported are shown in Table 89 For a detailed description on how to use the look up table feature please refer to the GigEVisionSDK API Help located in the doc folder of the GigE VisionSDK installation directory Supported bit depth Supported image input 8 bit per channel 16 bit per channel Monochrome J V Raw Bayer WA V Color RGB V V Table 89 Look up table supported bit depth and image types 1 80 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision Look up table in GigEVisionClient 7 Image Processing in GigEVisionSDK
2. 20ms Frame1 Camera 3 frame transfer delay 20ms 3 each camera takes 10ms to transfer full frame to PC and it uses whole bandwith while transferring Figure 114 Example flow of frames when GevSCFTD is used Figure 114 shows a case where three simultaneously triggered cameras are streaming frames to one PC and each camera utilizes 100 of available bandwidth when transferring frame In this particular sample it takes 10ms to transfer one whole frame for each camera so Frame Transfer Delay needs to be adjusted ina way that only one camera is transferring data at a time In presented case Camera 2 will start sending data after frame from Camera 1 is transferred and Camera 3 will start sending data after frame from Camera 2 is transferred Next trigger is not allowed until all cameras finish sending data 145 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 5 Image Transmission over Gigabit Ethernet Setting Frame Transfer Delay For setting FrameTransferDelay property camera provides GevSCFTD register which is represented in ticks To calculate the value for GevSCF TD Frame TransferDelay needs to be converted from time unit to ticks Before calculating FrameTransferDelay need to be converted to seconds so correct value can be calculated Formula to calculate number of ticks for given time value is shown below GevSCFTD FrameTransferDelay x GevTimestampTickFrequency GevTimestampTickFrequency indicat
3. VYsmartek vision 7 Image Processing in GigEVisionSDK 7 2 9 Sharpening In some situations captured images are blurred where the reasons may vary imperfect produced lenses or digital image sensors themselves can blur an image to some degree as well as motion in the scene and image operations which may reduce the sharpness Especially on Bayer color image sensors where the missing color information is interpolated a loss of sharpness is unavoidable Sharpening emphasizes edges and fine details in the image enhancing its visual quality The image seems sharper but no new details are actually created Figure 164 demonstrates the sharpening algorithm of the ImageProcAPI On the left the original image is displayed on the right the sharpened image with an applied sharpen factor of 1 0 As result the output image appears sharper in comparison to the original one Original Image Zoomed Figure 164 Example of sharpening algorithm factor 1 0 203 SMARTEK Vision Giganetix User Manual Version 2 4 0 Vsmartek vision 7 Image Processing in GigEVisionSDK Sharpening in the GigEVisionSDK In the GigEVisionSDK the ImageProcAPI provides the programming interface for configuring and executing the sharpening algorithm The bit depths and image types supported are shown in Table 99 For a detailed description on how to use this feature please refer to the GigEVisionSDK API Help located in the doc folder of the GigE VisionSDK insta
4. 0 9 0 8 0 7 0 6 0 5 0 4 0 3 0 2 0 1 Relative response 350 450 550 650 750 850 950 1050 Wavelength nm Figure 15 Relative response of GC3851 Monochrome from sensor datasheet 0 9 0 8 0 7 0 6 0 5 0 4 0 3 0 2 0 1 Relative response 350 450 550 650 750 Wavelength nm Figure 16 Relative response of GC3851 Color from sensor datasheet 26 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 2 SMARTEK Vision Giganetix Camera Models 2 2 5 GC1932M GC1932C GC GC S90 GC BL Image Sensor Sony IMX249 Chromatics Monochrome Color Sensor type CMOS Sensor resolution H x W 1936 x 1216 Optical size 1 1 2 Pixel size in um 5 86 x 5 86 Analog gain in dB O to 24 Shutter Global Shutter Exposure time 26us to 10s Max frame rate 8Bit in Hz 41 ADC bit depth 8bit 10 bit Pixel data formats mono model Mono8g Mono10Packed Mono16 Pixel data formats color model Mono8 Mono16 BayerRG8 BayerRG16 Synchronization Free run external and software trigger single shot multi shot Exposure control Freely programmable via GigE Vision interface Power consumption aux 12V 2 6W 2 6W 2 6W Power consumption PoE 3 4W Not supported 3 4W Table 12 Model specific specification of GC1932 27 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 2 SMARTEK Vision Giganetix Camera Models Relative Response 1 0 p 0 9 0 7 0 6 0 5 0 4 0 3 0 2 0 1 0 0 400 500 600
5. 2 00 a a 165 6 Image Processing on Camera 167 6 1 Luminance Look up Table 0 0 167 6 2 Gamma Adjustment 0 00 169 7 Image Processing in GigEVisionSDK 170 7 1 Image Statistics 0 a 171 7 1 1 Histogram 1 171 7 1 2 Average Luminance Calculation 0 0000 eee ee ee 175 7 2 Image Processing Algorithms 0 0 0 2 177 7 2 1 Luminance Look Up Table LUT 0 0 a 177 7 2 2 Digital Gain 2 0 183 7 2 38 Auto Exposure and Auto Gain ooo a a a a a 186 7 2 4 White Balance 0 0 ce 188 7 2 5 Gamma Correction aooaa a a a a a a 191 7 2 6 Color Filter Array Interpolation Demosaicing Debayering 194 7 2 7 Matrix Multiplication 38x38 0 0 0 2 0 0 00 2 198 does GIMP Hols 44 4e68 4444464846444 oe eee eee ee eee ee 200 7 2 9 Sharpening 2 0 ee ee es 203 7 2 10 RGB to Grayscale Conversion noaoo a a a 205 7 2 11 Bit Depth Conversion aoao a a a a a a 207 7 2 12 Flip Rotate Transformation 0 000 ee ee 208 7 3 Color Image Processing Pipeline 2 2 0 0 2 a 210 8 Contact Information 211 9 Revision History 212 IIl SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 1 Description of Product Family 1 Description of Product Family The SMARTEK Vision Giganetix camera family offers an affordable easy to use set of digital cameras designed to meet demanding high quality image ma
6. ChunkGain Not available ChunkExposureT Not available ChunkUserlntValue Not available Device Properties Figure 130 Enable LUT feature on Camera in GigE VisionClient Figure 131 Modify individual LUT value in GigEVisionClient 1 68 SMARTEK Vision Giganetix User Manual Version 2 4 0 Wsmartek vision 6 Image Processing on Camera 6 2 Gamma Adjustment Gamma Adjustment assumes that the sensor s gamma is 1 0 and comes into consideration when displaying an image on a display device It is used to encode linear luminance to match the non linear characteristics of display devices Refer to chapter 7 2 5 for more details about the theory of Gamma Correction and or Gamma Adjustment Gamma adjustment is realized by the following formula where y is the new pixel intensity y the original pixel intensity and gamma the gamma value J _ amma y y Users can change the gamma value under Analog Control property like shown in Figure 132 The gamma value can be set in range from 0 1 to 4 0 by a step of 0 1 By default the gamma value is equal to 1 0 Device Properties start stop Parameters Device Info Registers Visibility Beginner Refresh Property Value A ExposureMode Timed ExposureTime 20000 00 E AnalogControl El GainSelector All Gain 11 99 GainAutoBalance Continuous DigitalShift 0 i Gamma 1 00 EF TransportLayerControl E GeviInterfaceSele Netw
7. D Table 33 Ethernet connector type and assignment 69 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 2 SMARTEK Vision Giganetix Camera Models Status LEDs The Ethernet connector provides a yellow and a green LED The green LED indicates the status of the Ethernet link and its activity while the yellow LED indicates the status of the camera The description of the different statuses of these LEDs can be found in Table 34 and Table 35 below Green LED Status Description Off No link Solid on Link on Ethernet link exists Blinking Indicates ongoing Ethernet activity Table 34 Ethernet Green LED status Yellow LED Status Description Off Not powered Solid on Power on Status OK One blink then Off No user firmware Factory firmware active Two blinks then Off Watchdog timer timeout error Three blinks then Off User firmware data CRC error Four blinks then Off Internal FPGA configuration error Table 35 Ethernet Yellow LED status Cabling Requirements To connect the camera to a network at least a straight UTP Unshielded Twisted Pair CAT5e cable needs to be used in environments with low or no EMI In environments with higher EMI a STP Shielded Twisted Pair CAT6 cable is recommended The scheme for Straight through patch cable is shown on Figure 60 RJ45 RJ45 1 OR WHT OR WHT 1 pe 2 OR OR 2 3 GRN WHT GRN WHT 3 pee Se See ae eee aae e0oa BLU BLU 4 RD 5 BLU WHT BLU WHT 5 pe 6 GRN
8. Example of image flipping Original Image Image rotated by 180 Image rotated by 90 Image rotated by 270 Figure 169 Example of image rotation Flipping Rotating in the GigEVisionSDK In the GigEVisionSDK the ImageProcAPI provides the programming interface for executing the flipping rotating transformations The bit depths and image types supported are shown in Table 102 For a detailed description on how to use this feature please refer to the GigEVisionSDK API Help located in the doc folder of the GigE VisionSDK installation directory Supported bit depth Supported image input 8 bit per channel 16 bit per channel Monochrome V V Raw Bayer V V Color RGB V V Table 102 Flip Rotate supported bit depths and image types 208 SMARTEK Vision Giganetix User Manual Version 2 4 0 VYsmartek vision 7 Image Processing in GigEVisionSDK Flip Rotate transformations in the GigEVisionClient In the GigEVisionClient the Flip Rotate options can be activated in the Image Processing Properties panel under Color shown in Figure 170 If not visible the panel can be enabled by the menu bar entry Control gt Image Processing Properties T Gigi Vi s p i ya G a 194 ic i payee Roan at Like a ate lide ot LR Pei eee T File View Con tre T Displays Help a T Find Devices ia Set Ip To Device R Device Properties Device Property Info _ API Settings i om E ET T ya a EMOCE a l DeviceManuf
9. Figure 19 Relative response of GC651 Monochrome from sensor datasheet 0 9 0 8 0 7 0 6 0 5 0 4 0 3 0 2 0 1 Relative response 350 450 550 650 750 Wavelength nm Figure 20 Relative response of GC651 Color from sensor datasheet 30 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 2 SMARTEK Vision Giganetix Camera Models 2 2 7 GC652M GC652C GC GC S90 GC BL Image Sensor Sony ICX424 Chromatics Monochrome Color Sensor type CCD Sensor resolution H x W 659x494 656x492 659x494 Optical size 1 3 Pixel size in um 7 4 xX 7 4 Analog gain in dB 5 1 to 41 8 Shutter Progressive Scan Exposure time 10us to 10s Max frame rate 8Bit in Hz 97 ADC bit depth 8 bit 14 bit Pixel data formats mono model Mono8 Mono16 Pixel data formats color model Mono8 Mono16 BayerRG8 BayerRG16 Synchronization Free run external and software trigger single shot multi shot Exposure control Freely programmable via GigE Vision interface Power consumption aux 12V 2 6W 2 6W 2 5W Power consumption PoE 3 2W Not supported 3 2W Table 14 Model specific specification of GC652 31 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 2 SMARTEK Vision Giganetix Camera Models Relative Response 0 9 0 8 0 7 0 6 0 5 0 4 0 3 0 2 0 1 Relative response 350 450 550 650 750 850 950 1050 Wavelength nm Figure 21 Relative response of GC652 Monochrome from sensor datasheet 0
10. Line 1 Line 2 is t f ReadRow Line 3 Line 4 i Line 5 Line 6 Line 7 Line 8 tread Row Line N 1 Line N tituminationDelay tiiumination Exposure Readout Figure 95 Electronic Rolling Shutter Frame Readout 1 1 3 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 4 Image Acquisition Beyond the illumination period tyjumination ideally no light falls onto the sensor to fully remove the rolling shutter effect The timing of illumination or mechanical shutter can be calculated with the formulas below Delay of illumination shutter open UiluminationDelay tReadRow ImageHeight 1 On time of illumination shutter open tilumination tExposure tReadRow X ImageHeight 1 4 2 3 Global Reset Release GRR Readout The Global Reset Release is a variation of the Electronic Rolling Shutter and supported by particular CMOS sensors Like the name already indicates all lines are reset globally at the same moment and thus also started to be exposed at the same time As shown in Figure 96 the start of exposure of subsequent lines is not delayed like on standard rolling shutters the readout procedure stays the same Since the exposure duration of each line is extended about tReadrow this way to its prior the image lightens up line by line from top to bottom Frame Start lExposure TErameReadoui Line 1 Line 2 Line 3 Line 4 Line 5 Line 6 Line 7 Line 8 Line N 1
11. Line N tFrame Exposure Readout Figure 96 Global Reset Release GRR Frame Readout Similar to the Electronic Rolling Shutter the progression of brightness in the image can be reduced or even removed by a controlled illumination situation The illumination of the sensor can in this case already be started with the sensor exposure but must end with the exposure of Line 1 what corresponds to the overall exposure time configured in the camera 1 1 4 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 4 Image Acquisition 4 3 Brightness and Sensor Signal Control 4 3 1 Exposure Integration Time The brightness of an image is influenced by the amount of light that falls on the image sensor concerning both intensity and duration The duration of time in which the photosensitive cells of the image sensor are exposed to the incoming light is called the exposure time or the integration time While the intensity of light depends on the light source and the lens aperture the exposure time can be controlled by modifying parameters of the camera Figure 97 demonstrates two settings of camera s exposure time The left picture is captured with an exposure time of 10000 us For the right picture the exposure time is set to 22000 us The brightness difference of the two images is clearly visible Due to the nearly linear behavior of the used sensors doubling the exposure time results in an approximately doubled pixel intensi
12. Matrix 3x3 Matrix multiplication including value storing loading Only available for color cameras GIMP GIMP based color manipulation via hue lightness and Only available for color saturation mariarae LUT Look Up Table generation application and storing loading Other Image sharpening Image Flip Rotate Table 45 GigEVisionClient Image processing functions 96 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 3 Smartek GigEVisionSDK Library 3 6 3 API Settings Dialog The API Settings dialog accessible after activating it in the Control menu of the Menu Bar displays various settings of the API driver and memory management The API tab shown in Figure 79 allows the modification of all available API parameters and gives access to the packet resend settings and statistics of the current driver session as well as it enables the user to rise or decrease the image buffer within the camera driver This buffer represents space in the non paged memory pool of Windows and can be used to improve the performance when loosing images because of low system performance limits it to 256MB Windows 7 limits it at 75 of physical RAM the number of images Since the amount of memory in the non paged memory pool is limited Windows XP in the image buffer must be calculated correctly API Settings EES API Device Property Value PacketResendControl Statistics ImageButferContral H GenicamaAMLControl Figure
13. Note FPS of the camera The exposure time in us for each frame must not exceed TET to be able to reach the target frame rate TargetFPS The automatic modification of the camera s exposure time within user applications can be realized by using the ImageProcAPI provided by the GigEVisionSDK For detailed description of the automatic exposure feature please refer to chapter 7 2 3 Auto Exposure and Auto Gain 116 SMARTEK Vision Giganetix User Manual Version 2 4 0 VYsmartek vision 4 Image Acquisition 4 3 2 Analog Gain and Black Level After the charge was read out from the active pixel array it needs to be amplified according to the input levels of the analog to digital converter or even higher to lighten up dark scenes without raising the exposure time or adding light Analog Gain Figure 98 illustrates a typical image acquisition signal chain in SMARTEK Vision digital cameras The analog voltage generated by the sensor will be passed through the Variable Gain Control where it is amplified by a factor configurable by the camera s Gain value BlackLevel FPGA Figure 98 Typical signal chain in a CCD CMOS image sensor In SMARTEK Vision digital cameras gain values are expressed in decibels dB the analog gain defines the ratio between the output and input voltage value in a base 10 logarithmic scale Uamp Uin Gaingp 20 x logio For calculating the linear amplification factor from the gain value in dB the
14. Power consumption aux 12V 4 2W Power consumption PoE 5 6W Table 30 Model specific specification of GCP2751 63 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 2 SMARTEK Vision Giganetix Camera Models Relative Response 400 500 600 700 800 900 1000 Wavelength nm Figure 53 Relative response of GCP2751 Monochrome from sensor datasheet 1 0 0 9 0 8 0 7 0 6 0 5 0 4 0 3 0 2 0 1 0 0 400 500 600 700 Wavelength nm Relative response Figure 54 Relative response of GCP2751 Color from sensor datasheet 64 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 2 SMARTEK Vision Giganetix Camera Models 2 2 24 GCP3381M GCP3381C GCP Image Sensor Sony ICX814 Chromatics Monochrome Color Sensor type 4 Tap CCD Sensor resolution H x W 3376 x 2704 Optical size i Pixel size in um 3 69 x 3 69 Analog gain in dB 12 to 24 Shutter Global Shutter Exposure time 10us to 10s Max frame rate 8 16Bit in Hz 12 5 ADC bit depth 8 bit 14 bit Pixel data formats mono model Mono8g Mono10Packed Mono12Packed Mono16 Pixel data formats color model Mono8 Mono16 BayerRG8 BayerRG16 Synchronization Free run external and software trigger single shot multi shot Exposure control Freely programmable via GigE Vision interface Power consumption aux 12V 4 4W Power consumption PoE 5 6W Table 31 Model specific specification of GCP3381 65 SMARTEK Vision Gigan
15. Sensitive Active pixel Transfer cell Figure 87 Giganetix Frontend with Single Tap Interline Transfer CCD After the period of exposure all collected charges are transferred at the same time from the active pixels into vertical shift registers located beside each column of active or photosensitive cells As the transfer cells are not photosensitive no mechanical shutter is needed As all pixels are read out at the same time Interline Transfer CCD sensors have a Global Shutter as well The charges from top of the vertical shift registers are moved line by line down to the horizontal shift register shown in the bottom of the active array From the horizontal shift register charges are converted to voltages and moved out of the image sensor from right to left On the camera frontend containing the sensor the image signal is amplified VGC and digitized ADC and provided to the FPGA for further processing 1 04 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 4 Image Acquisition 4 1 2 Multi Tap CCD Sensor Readout In contrary to classic Single Tap CCD sensors the pixel array of Multi Tap CCDs is read out from several sides The big advantage of this approach of parallel readout is the multiplied amount of pixel data which can be read at the same time Depending on the count of taps multi tap sensors can easily reach a multiple of frame rates compared to single tap sensors Oo ap ap q N Cc
16. Supported image input 8 bit per channel 16 bit per channel Monochrome vi V Raw Bayer we V Color RGB vi V Table 88 Average luminance calculation supported bit depth and image types 175 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 7 Image Processing in GigEVisionSDK Average Luminance in the GigEVisionClient Calculated average value s of the image channel s can be found in the Image Processing Properties under Color Mono shown in Figure 136 If not visible it can be enabled by the menu bar entry Control gt Image Processing Properties Js 1A GigEVisionCient GCPI941C 6C D1 160001 60 1921680134 File View Control Displays Help w a ia Set Ip To Device i o Connect Device Modei _ Disconnect Device ccr CPi ccs Preview lal Devices 3 Device Properties i C Device Property Info start l _ API Settings Parameters BSR e n n Histo Visiaity Gun Histogram J Ci Log Firmmarara Update checke Tiu mA Property DeviceControl DeviceVendor ellodel METE Reset red m noa iB 0 00 Green 6 L00 J 1 00 J 0 00 a E GON GO Com Load Values Save Values Image Size 1936 x 1456 Framerate Acquisition Display 15 FPS 15FPS Position Cursor x Y 47 764 Pixel Value RGB Cursor 83 83 78 Data Transfer Rate 42 28 MBps Figure 136 Average value calculation in GigE VisionClient for White Balancing algorithm 1 7
17. 2 89 3 6 1 Graphical User Interface GUI 2 2 0 0 02 02 ee ee 89 3 6 2 Acquire Images from Camera s oaoa a a a a a a 91 3 6 3 API Settings Dialog nooo 97 3 6 4 Chunk Data Control aoaaa aaa a a a 98 369 Log DAOG s s saa aaa aa a aaa eden a a ea ch ahhh a a a R a 100 AEG FIWE UPAG ee e e E E 100 4 Image Acquisition 102 4 1 General Camera Architecture onoo a a a a 102 4 1 1 CCD Sensor Readout noaoo a a a a 104 4 1 2 Multi Tap CCD Sensor Readout aoaaa a 105 4 1 8 CMOS Sensor Readout aana a 107 4 1 4 CCD vs CMOS Sensor Performance aooaa a a 108 4 1 5 Color Imaging with Bayer Pattern ooo a ee 109 4 2 Shutter types and Frame Readout aoao a a a e a 111 4 2 1 Global Shutter Readout a aoaaa a 111 4 2 2 Electronic Rolling Shutter ERS Readout aoaaa 112 4 2 3 Global Reset Release GRR Readout anaoa a a 114 4 3 Brightness and Sensor Signal Control noaoo aoa e a a e e 119 4 3 1 Exposure Integration Time oaoa 115 4 3 2 Analog Gain and Black Level noanoa a 117 4 3 3 Automatic Exposure and Gain Control oaoa a a a a eee eee eee 120 4 3 4 Automatic Tap Balancing oaaao 121 43 5 Digital Shit 2444444844446 4644R ttnn A EE A 123 4 4 Region of Interest ROI aooaa a a 124 4 4 1 Multiple Regions of Interest nonoa 125 4 4 2 Region of Interest Centering oaoa 127 45 ACOUISHION CONWOl lt cagaceguceeaeeeeeeseeerteseresseesseeseeeseeers 128 4 5 1 Free Run Operation
18. 2 4 0 VWsmartek vision 2 SMARTEK Vision Giganetix Camera Models General Cautions The board level cameras are delivered without a housing and partly disassembled Handle all parts with care and do not touch the components or contacts on the boards hold all boards only by their edges The cable used to connect sensor head and mainboard is a Flat Printed Circuit FPC cable Due to the construction of cable and jack it is not build for re plugging or multiple bending cycles physical stress to cable or connector can lead to permanent damage Do not attempt to disassemble the lens mount or sensor head there are sensitive optical parts inside tampering can lead to permanent damage Building a case around the camera causes in a heat accumulation of the internal ambient temperature Make sure that the environmental temperature of the camera electronics does not exceed the specified maximum Environmental and Mechanical Cautions Due to the missing housing the camera is not certified to any EMC directives The customer needs to take care of fulfilling EMC regulations for his individual target application and for sufficiently shielding the camera against environmental radiation Avoid the contact of the of the camera s boards with any liquid or any impurities do only operate clean boards and protect them against environmental influences like particles humidity liquids and radiation by an appropriate protective housing Avoid any
19. 4 Image Acquisition In general the Bayer color filters are arranged in a 2 by 2 pattern where the green filter is used as twice as red or blue filter as described above The first two pixels from top and left of the pixel array determine the name of the Bayer pattern The Bayer pattern shown in Figure 91 is therefore called a RG pattern This pattern is one of the four Bayer patterns available GR RG BG and GB shown in Figure 92 Figure 92 Bayer Color Filter Array placed on top of an area image sensor Since each pixel accumulates only the intensity value of the red green or blue light there are missing information for displaying a color image At the pixel position of a red color filter for example the green and blue information are missing To reproduce the full color information various interpolation methods can be applied to calculate the missing values based on the neighbor pixels Those interpolation methods are often called color filter array interpolation demosaicing or debayering For more detailed description of the debayering methods please refer to chapter 7 2 6 Color Filter Array Interpolation Demosaicing Debayering in this user manual 110 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 4 Image Acquisition 4 2 Shutter types and Frame Readout On digital image sensors with electronic shutters three technologies of frame shuttering are common e Global Shutter e Electronic Rolling Shutt
20. 700 800 900 1000 Wavelength nm ve respo Relati Figure 17 Relative response of GC1932 Monochrome from sensor datasheet 1 0 0 9 0 8 0 7 0 6 0 5 0 4 0 3 0 2 0 1 0 0 400 500 600 700 800 900 1000 Wavelength nm Relative response Figure 18 Relative response of GC 1932 Color from sensor datasheet 28 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 2 SMARTEK Vision Giganetix Camera Models 2 2 6 GC651M GC651C GC GC S90 GC BL Image Sensor Sony ICX618 Chromatics Monochrome Color Sensor type CCD Sensor resolution H x W 659x494 656x492 659x494 Optical size 1 4 Pixel size in um 5 6 x 5 6 Analog gain in dB 5 1 to 41 8 Shutter Progressive Scan Exposure time 10us to 10s Max frame rate 8Bit in Hz 120 ADC bit depth 8 bit 14 bit Pixel data formats mono model Mono8g Mono16 Pixel data formats color model Mono8 Mono16 BayerRG8 BayerRG16 Synchronization Free run external and software trigger single shot multi shot Exposure control Freely programmable via GigE Vision interface Power consumption aux 12V 2 3W 2 3W 2 3W Power consumption PoE 3 0W Not supported 3 0W Table 13 Model specific specification of GC651MC 29 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 2 SMARTEK Vision Giganetix Camera Models Relative Response 0 9 0 8 0 7 0 6 0 5 0 4 0 3 0 2 0 1 Relative response 350 450 550 650 750 850 950 1050 Wavelength nm
21. 79 API Settings Additionally the Device tab of the API Settings dialog provides access to the packet statistics on device side 97 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 3 6 4 Chunk Data Control To access chunk data control in GigEVisionClient visibility must be set to Expert Controls are located at 3 Smartek GigEVisionSDK Library bottom of Device Properties window Figure 80 shows chunk data control ChunkDataContral ChunkModeActive ChunkSelector ChunkEnable Not available Mot ayailable EG ChunkCounterSelector ChunkCountervalue ee m e a e E G M e E a e r M a a e o e e a l a Ben ChunkPixelFornnat Not available ChunkDataContral ChunkModeactive ChunkSelector ChunkEnable Ee ChunkCounterSelector ChunkCounteryalie P ChunkPixelFormat LinePitch Gain ExposureTime Counter Value Mot available Not available Not ayailable Chunkiwidth Mot available Chunkiwidth H ChunkHeight Not avallable ChunkHeight ChunkOFFsebs Not available ChunkOFFsebs j Chunkorrsety Mot available Chunkorrsety H ChunkLinePitch Mot available H ChunkLinePitch P Chunkisain Mot available P Chunkisain oo ChunkExposureTime Not available ChunkExposureTime Chunkuserintvalue Not available ChurkUserintVelue Not availa Figure 80 Chunk Data Control e ChunkModeActive enable or disable chunk data if chunk dat
22. 8 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 4 Image Acquisition Function Description bool GetFloatNodeValue Get value of IFloat node Gain Gain double amp nodeValue const bool SetFloatNodeValue Gain double nodeValue bool GetFloatNodeMin Gain double amp nodeMinValue const bool GetFloatNodeMax Gain double amp nodeMaxValue const Set value of IFloat node Gain Get minimum value of IFloat node Gain Get maximum value of IFloat node Gain Table 50 Gain Access through API Black Level As shown in Figure 98 as well the analog to digital conversion circuit includes beside the ADC an additional component with the target to remove dark current noise from the signal of each pixel Dark current is a charge of each pixel which is generated continuously by thermal energy within the silicon lattice even when no light enters the sensor As its charge in the photosensitive pixels is not connected to the amount of light entering it is no useful signal and needs to be removed before digitizing the signal as it negatively effects the signal to noise ratio To help to remove the dark current noise image sensors usually provide an array of optically shielded pixels lines and columns covered by a non transmissive metal coating Due to the coating they are at no time exposed to light and are taken as reference value for the dark current The Optical Black Clamping OBC circuit shown i
23. 89 fin Hx Wx L 50 x 50 x 48 mm in Housing Black anodized aluminum case Weight Approx 150g 9 30Z Storage temperature 30 C to 60 C 22 F to 140 F Operating temperature 0 C to 50 C 32 F to 122 F Operating humidity 20 to 80 relative non condesing Storage humidity 20 to 80 relative non condesing Power requirement 10V to 24V DC via Power and I O interface Power over Ethernet PoE Lens mount C Mount Connectors screw mount Ethernet RJ45 Communication Data and Power Circular Hirose 12 pin Power and O Interface Digital input 2 input channels opto isolated Digital output 2 output channels opto isolated Conformity CE FCC RoHS II GigE Vision GenlCam PoE IEEE802 3af 1 measured at camera housing Table 7 Mechanical and electrical specifications 1 7 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 2 SMARTEK Vision Giganetix Camera Models 2 1 4 1 Technical Drawings 251 M3x0 5 6H Y 5 00 0 20 Figure 10 Technical measures of GCP camera with standard housing all dimensions are in mm inch 1 8 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 2 SMARTEK Vision Giganetix Camera Models 2 2 Sensor nformation and Technical Specification All Models Separate The following chapter contains sensor specific specifications for all existing camera models including the respective response curves All respond curves have been extracted fro
24. By default the interface is configured to obtain an IP address automatically by a DHCP server shown in Figure 115 usually provided by routers or dedicated servers A fixed IP address and Subnet mask can be entered like shown in Figure 115 right after choosing Use the following IP address Internet Protocol Version 4 TCP IPv4 Properties p feeSe Internet Protocol Version 4 TCP IPv4 Properties Eam General Alternate Configuration General You can get IP settings assigned automatically if your network supports You can g t IP settings assigned automatically if your network supports this capability Otherwise you need to ask your network administrator this capability Otherwise you need to ask your network ackrinistrator for the appropriate IP settings for the appropriate IP settings Obtain an IP address automatically Obtain an IP address automatically Use the following IP address Use the following IP address IF address Subnet mask Ce fault gateway Obtain DNS server address automatically Use the following DNS server addresses Use the following ONS server addresses Preferred DNS server Alternate DNS server Validate settings upon exit Figure 115 Internet Protocol Version 4 TCP IPv4 properties 147 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 5 Image Transmission over Gigabit Ethernet 5 3 Network Interface Optimization To reach the optimal performance with t
25. File View Control Displays Help S Set Ip To Device w Connect Device t Disconnect Device Device Properties Device Property Info v Start E API Settings Parameters E visib ity Gury DeviceManufa Giganetix GigE Vision c Image Procesang Poosernes Color AE Matix Give LUT Other 3 Enable Matrix Multiplication ZE Leis 0 00 E Di B 0 00 1 00 3 aaa aio 3 Bi Be toad values save Values _ Image Size 1936 x 1456 Framerate Acquisition Display 11FPS 11FPS Position Cursor X Yi 233 869 Pixel Value RGB Cursor 21 48 15 Data Transfer Rate 31 01 MBps Figure 161 Matrix Multiplication RGB in the GigE VisionClient Enable Activate deactivate the matrix multiplication feature Reset Sets matrix coefficients to default values Load Values Load a file with user defined matrix coefficients Save Values Save the current matrix coefficients to a file 1 99 SMARTEK Vision Giganetix User Manual Version 2 4 0 VYsmartek vision 7 Image Processing in GigEVisionSDK 7 2 8 GIMP HSL The GIMP HSL algorithm allows the color manipulation of images based on the HSL color space The used algorithm is provided by the open source project GIMP and allows the manipulation by the attributes Hue Saturation and Lightness When it comes to manipulating color in images it is often referred to color models or color spaces Basically
26. GRN 6 RD 7 BRN WHT BRN WHT 7 8 BRN BRN 8 Figure 60 Straight through cable scheme 70 SMARTEK Vision Giganetix User Manual Version 2 4 0 VYsmartek vision 2 SMARTEK Vision Giganetix Camera Models 2 3 2 Power and O Interface Beside the Ethernet interface for communication and data transmission all cameras are equipped with a Power and I O Interface Via this interface the cameras provide access to two digital input and two digital output lines as well as their main power supply input Depending on the type of camera there are two different kind of connector types used shown in Table 36 Model Connector Type Receptable GC standard housing 12 pin Circular Hirose HR10A 10P 12S GC S90 angled 90 housing 12 pin Circular Hirose HR10A 10P 125 GCP standard housing 12 pin Circular Hirose HR10A 10P 12S GC BL board level 10 pin Molex Picoblade 93398 1071 10 pins Table 36 Power and I O interface connector type per model 2 3 2 1 12 pin Circular Hirose Connector The housed Giganetix standard and 90 angled cameras are equipped with a 12 pin circular Hirose receptacle to provide access to the power interface as well as the input and output lines Figure 61 shows the pin and connector orientation on the back of the camera housing Table 37 shows the corresponding pin assignment Figure 61 12 pin circular Hirose receptacle Pin and connector orientation 71 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qs
27. Integer Vertical offset from the origin to the ROI in pixels Table 57 Region of Interest parameters While the image acquisition process on the camera is active only changes to the parameters that determine the position of the ROI are allowed Offsetx OffsetY Changes to parameters that define the ROI size Width Height are not allowed Changes to parameters while the image acquisition process is active is also called on the fly changes 1 24 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 4 Image Acquisition 4 4 1 Multiple Regions of Interest If a camera supports Multiple Regions of Interest the parameters RegionSelector RegionMode and RegionDestination can be used to select and control each region individually Parameter Type Description RegionSelector Enumeration Selects the Region of Interest to control RegionMode Boolean Enables or Disables the selected region RegionDestination Enumeration Controls the destination stream of the selected region Table 58 Multiple Regions of Interest parameters Each ROI defines one horizontal and one vertical stripe in the full resolution image as shown in Figure 103 The stripes that are overlapping or are located next to each other are merged into one stripe For example horizontal stripe belonging to RegionO ROI1 and horizontal stripe belonging to Region1 ROI2 are merged into HStripe1 The resulting Multiple ROI image will contain all image areas where
28. Manual Version 2 4 0 Qsmartek vision 4 4 2 Region of Interest Centering 4 Image Acquisition When parameters CenterX and CenterY are enabled camera automatically calculates and sets the horizontal and vertical offsets positioning the ROI in the center of the image Parameters OffsetX OffsetY are unavailable when CenterX CenterY are enabled R O Automatically W calculated Offset Y H e g h t Column 123 4 5 67 8 9 1011121314 15 161718 19 20 1 2 A 3 _ I 4 5 6 7 8 9 10 11 12 13 PL LIL 14 16 Transmitted Pixels PIL LLL 17 18 19 _ E I 20 i PIE LIL Width Automatically calculated Offset X Figure 104 Center X amp Y On cameras equipped with 4 Tap CCD image sensors ROI Centering feature will Note generally result in higher achievable frame rate compared to arbitrarily set ROI position 127 SMARTEK Vision Giganetix User Manual Version 2 4 0 VYsmartek vision 4 Image Acquisition 4 5 Acquisition Control The following section is about controlling the image acquisition of SMARTEK Vision digital cameras It contains a detailed description about
29. Qsmartek vision 7 Image Processing in GigEVisionSDK 7 2 2 Digital Gain The pixel signal received from an image sensor is amplified and digitized before transmitted to the host application For devices which do not provide an individual analog gain separately for each color channel or in applications where the available maximum analog gain does not suffice a software based gain can be applied by the ImageProcAPI The digital gain is a factor which is multiplied with each pixel value of an image channel generating the new value of the pixel Pixel x Y out Pixel x yY n x DigitalGain Each channel has its own gain value which makes it for example to a tool for white balancing if not already supported by the camera Further digital gain is a useful feature to enhance the image brightness especially under low light condition Increasing a digital gain value means increasing the intensity of each pixel resulting in a brighter overall image However the image noise will also be increase with digital gain Figure 145 demonstrates four different gain settings applied to the image While digital gain equals 1 0 represents the image at its original with increasing digital gain value the image becomes brighter and the noise rises as well Also at higher gain settings some pixels are over saturated what leads to information loss in the image Digital Gain 1 0 Digital Gain 2 0 Digital Gain 3 0 Digital Gain 4 0 Figure 145 Dig
30. a color model describes the way colors can be represented With understanding of how different color models work the appropriate color model for specific image processing algorithms can be chosen The most widely used and best known one is the RGB color model However RGB is not always efficient and intuitive in manipulating color A more suited color space for manipulating colors is the HSL color space It was developed to interpret colors in avery similar way as humans do wherefore color and brightness information are handled separately The color information is defined by Hue and Saturation the brightness information is defined by a Lightness value The HSL color model can be represented by a circle called a color wheel like shown in Figure 162 Red Magenta Yellow 300 60 Blue Green 240 120 Cyan 180 Figure 162 HSL color wheel Hue refers to a specific tone of color Red Yellow Green Cyan Blue Magenta and their blends the individual colors are arranged in a circle Their individual position is determined by an angle ranging from 0 to 360 Pure red is usually placed at 0 pure green and pure blue at 120 respectively 240 Table 97 shows the six base colors 200 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 7 Image Processing in GigEVisionSDK Hue angle Color 0 60 120 180 240 300 Table 97 HSL color space As shown in Figure 162 as well Saturation
31. channel luminance image Figure 166 shows an example of RGB to gray conversion The image on the left represents the original RGB color image The output grayscale image on the right is the result of the conversion process Input color image Output grayscale image Figure 166 Example of RGB to gray conversion RGB to Gray Conversion in the GigEVisionSDK In the GigE VisionSDK the ImageProcAPI provides the programming interface for executing the RGB to gray conversion The bit depths and image types supported are shown in Table 100 For a detailed description on how to use this feature please refer to the GigEVisionSDK API Help located in the doc folder of the GigE VisionSDK installation directory Supported bit depth Supported image input 8 bit per channel 16 bit per channel Monochrome Raw Bayer Color RGB io V Table 100 RGB to Gray conversion supported bit depths and image types 205 SMARTEK Vision Giganetix User Manual Version 2 4 0 VYsmartek vision 7 Image Processing in GigEVisionSDK RGB to Gray Conversion in the GigEVisionClient In the GigEVisionClient the RGB to Gray options can be activated in the Image Processing Properties panel under Color shown in Figure 167 If not visible the panel can be enabled by the menu bar entry Control gt Image Processing Properties T Gigi Vi s p i ya G a 194 ic i payee Roan at Like a ate lide ot LR Pei eee T File View Con tre T Displays Help chec
32. checks the frame counter register and sends its value together with the image as frame counter chunk Chunks are together with captured image fitted into tagged blocks of data Each data block consists of a Data Leader Payload and Trailer The Data Leader is one packet that determines the beginning of a new data block The Data Payload are one or more packets containing the actual information to be streamed for the current data block The Data Trailer is one packet used to signal the end of the data block Chunk data is also included in the Data Payload Each chunk contains chunk data and the trailing tag The trailing tag contains a unique chunk identifier and the length of the chunk data The unique chunk identifier defines the structure of the chunk data and the chunk feature associated with this chunk Figure 128 shows the chunk data content length bytes chunk ID Figure 128 Chunk data content e data The data that the chunk is transporting This section must be a multiple of 4 bytes empty digits have to be padded with zeros This ensures the chunk ID and length fields are 32 bit aligned with chunk e chunk ID The chunk identifier 4 bytes e length The length of the data in bytes must be a multiple of 4 161 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 5 Image Transmission over Gigabit Ethernet 5 5 1 Getting Started with Chunk Data Before using any of the chunk data features chunk mode
33. d o o makes no representations warranties or assurances of any kind as to the accuracy Currency or completeness of the information provided SMARTEK d o o shall not be liable of any damages or injury resulting from your reliance on any information provided in this document Copyright All texts pictures and graphics and intellectual property in this document are protected by copyright Reproduction of part or all of the content for trade or transfer purposes is prohibited None of the content of this document may be copied or otherwise incorporated into or stored in any other website electronic retrieval system publication or other work in any form whether hard copy electronic or other For the avoidance of doubt framing of this document or any part of it is not permitted without express permission WWW S MA RT E K vis i on SMARTEK d o o 2015 information is subject to change without prior notice Version 2 4 0 from 2015 12 01 Qsmartek vision Table of Contents Table of Contents 1 Description of Product Family 1 Jel Precautions esee cessere ese neseno PERE HE EE EH EEE EE EE SE EE SSE 2 1 2 Supported Industry Standards 2 0 3 1 21 SIGE VISION 5 s 2 5 5 2 5 5 6 5 6 6 5 5 5 5 8 5 5 8 8 5 5 8 8 8 8 8 8 8 8 8 2 8 8 8 BE Ee ee 3 22 GenlGomM RALAR RANEREN EEA ANNARRA 4 1 2 3 C Mount aaa aaa a 5 1 3 EMland ESD Consideration ssesssesss ses Eds essa ESsSESESEESEN 5 1 4 Supported Third Party Software oaaa
34. flow from the camera to the software e GigEVisionClient The GigEVisionClient is an as binary and source available sample application which contains and utilizes the whole function set available by the GigEVisionSDK API in an intuitive graphical user interface Besides displaying images grabbed from the cameras it provides graphical access to e g multiple cameras their configuration and available post processing functions e GigEVisionSDK API The GigEVisionSDK offers an application programming interface API for for Gigabit Ethernet Vision GigE Vision cameras It supports the programming languages C C Delphi C and VB NET and allows an easy integration of a SMARTEK Vision camera in own software applications e ImageProc API The ImageProc API extends the basic camera functionality provided by the GigEVisionSDK API by color and post processing functions like e g debayering gamma look up table LUT and color correction algorithms All programming languages supported by the GigEVisionSDK API are supported by the ImageProc API as well 3 1 Supported Operating Systems The SMARTEK Vision GigEVisionSDK has been created to support Microsoft Windows as well as Linux operating systems For Microsoft Windows one software installer supports all versions and system architectures 32 or 64 Bit The GigEVisionSDK for Linux is available in versions for Debian and RPM based packet managers separately for 32 and 64 Bit Table 44 contains
35. formats mono model Mono8 Mono10Packed Mono12Packed Mono16 Pixel data formats color model Mono8 Mono16 BayerRG8 BayerRG16 Synchronization Free run external and software trigger single shot multi shot Exposure control Freely programmable via GigE Vision interface Power consumption aux 12V 3 1W Power consumption PoE 3 8W Table 26 Model specific specification of GCP1931 59 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 2 SMARTEK Vision Giganetix Camera Models Relative Response 1 0 p 0 9 0 7 0 6 0 5 0 4 0 3 0 2 0 1 0 0 400 500 600 700 800 900 1000 Wavelength nm ve respo Relati Figure 45 Relative response of GCP1931 Monochrome from sensor datasheet 1 0 0 9 0 8 0 7 0 6 0 5 0 4 0 3 0 2 0 1 0 0 400 500 600 700 800 900 1000 Wavelength nm Relative response Figure 46 Relative response of GCP1931 Color from sensor datasheet 56 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 2 SMARTEK Vision Giganetix Camera Models 2 2 20 GCP2061M GCP2061C GCP Image Sensor Sony IMX252 Chromatics Monochrome Color Sensor type CMOS Sensor resolution H x W 2064 x 1544 Optical size 1 1 8 Pixel size in um 3 45 x 3 45 Analog gain in dB O to 24 Shutter Global Shutter Exposure time 26us to 10s Max frame rate 8 16Bit in Hz 38 19 ADC bit depth 8 bit 12 bit Pixel data formats mono model Mono8 Mono10Packed Mono12Packed Mon
36. gain in dB 5 1 to 41 8 Shutter Progressive Scan Exposure time 10us to 10s Max frame rate 8Bit in Hz 61 ADC bit depth 8 bit 14 bit Pixel data formats mono model Mono8g Mono16 Pixel data formats color model Mono8 Mono16 BayerGR8 BayerGR16 Synchronization Free run external and software trigger single shot multi shot Exposure control Freely programmable via GigE Vision interface Power consumption aux 12V 3 4W 3 4W 3 4W Power consumption PoE Not supported Not supported 4 1W Table 23 Model specific specification of GC 1021 49 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 2 SMARTEK Vision Giganetix Camera Models Relative Response 0 9 0 8 0 7 0 6 0 5 0 4 0 3 0 2 0 1 Relative response 350 450 550 650 750 850 950 1050 Wavelength nm Figure 39 Relative response of GC1021 Monochrome from sensor datasheet 0 9 0 8 0 7 0 6 0 5 0 4 0 3 0 2 0 1 Relative response 350 450 550 650 750 850 950 1050 Wavelength nm Figure 40 Relative response of GC1021 Color from sensor datasheet 50 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 2 SMARTEK Vision Giganetix Camera Models 2 2 17 GC1601M GC1601C GC GC S90 GC BL Image Sensor Truesense Imaging KAI 02050 Chromatics Monochrome Color Sensor type 2 Tap CCD Sensor resolution H x W 1600 x 1200 Optical size 2 3 Pixel size in um 5 0 X55 Analog gain in dB 5 1 to 41 8 Shutter Progr
37. gt lsReadable ChunkName Returns true if user can access selected chunk and read data from it imagelnfo gt GetChunkNode gt Used to read data from chunk User should first ChunkNAME gt GetT YPENodeValue value check if he can access selected chunk Table 84 Chunk mode Access through API 163 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 5 Image Transmission over Gigabit Ethernet Table 85 contains functions showing how to retrieve data from each chunk Chunk name Type Function imagelnfo gt GetChunkNode gt ChunkPixelFormat enumeration ChunkPixelFormat gt GetEnumNodeValue value Info gt GetChunkNode gt ChunkLinePitch integer panei j ChunkLinePitch gt GetIntegerNodeValue value ChunkWidth integer imagelnfo gt GetChunkNode gt ChunkWidth gt GetIntegerNodeValue value ChunkWidth integer imagelnfo gt GetChunkNode gt ChunkWidth gt GetIntegerNodeValue value Info gt GetChunkNode gt ChunkHeight integer oan i ChunkHeight gt GetIntegerNodeValue value Info gt GetChunkNode gt ChunkOffsetX integer Tan g ChunkOffsetX gt GetIntegerNodeValue value Info gt GetChunkNode gt ChunkOffsetY integer nae ChunkOffsetY gt GetIntegerNodeValue value Info gt GetChunkNode gt ChunkGain float eee ChunkGain gt GetFloatNodeValue value Info gt GetChunkNode gt ChunkExposure Time float ee 7 ChunkExposureTime gt GetFloatNod
38. horizontal and vertical stripes overlap VStripel VStripe2 VStripe3 LLL 1 1 A Image Width 1ybiayH ebewy Full Resolution Image Multiple ROI Image Figure 103 Multiple Regions of Interest The width of the resulting image is equal to the sum of widths of all vertical stripes ImageWidth VStripe width The height of the resulting image is equal to the sum of widths of all horizontal stripes ImageHeight HStripe width 1 25 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 4 Image Acquisition The parameters of the example shown in Figure 103 are listed in Table 59 below It shows the definition of all three ROIs ROI 1 ROI 2 ROI 3 RegionSelector Regiono Region Region2 RegionMode RegionSelector On On On RegionDestination RegionSelector Streamo Streamo Stream0 Width RegionSelector 576 400 360 Height RegionSelector 392 520 288 OffsetX RegionSelector 160 1000 1576 OffsetY RegionSelector 408 232 824 Table 59 Multiple Regions of Interest example When more than one Region of Interest is enabled on the fly changes are not allowed even for parameters that determine the position of the ROI OffsetX OffsetY as they might influence the horizontal and vertical stripes forming the resulting image On the fly change of the parameter RegionMode is also not allowed as it results in enabling or disabling of a Region of Interest 126 SMARTEK Vision Giganetix User
39. is e g created by thermal influence a so called BlackLevel value is globally subtracted from each pixel as well After the preparation the signal of each pixel is digitized by the analog to digital converter The bit depth of each digital pixel value is defined by the resolution of the ADC used typically in range from 8 to 16 bits All further image processing is done based on the digital signals and takes place in the camera s FPGA The external memory RAM connected to the FPGA is used to buffer the image data decoupling the data processing domain from the data transmission domain Ethernet In the last step of the image processing chain the final image data is passed to the Ethernet Controller Here the data is segmented into GigE Vision compliant Ethernet packets which are sent over the Ethernet physical interface to the network or capture devices 103 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 4 Image Acquisition 4 1 1 CCD Sensor Readout The Giganetix camera family is equipped with a selection of CCD sensors from Sony and Truesense Imaging Figure 87 broaches the Interline Transfer technology used in all of the equipped CCD sensors as well as the individual camera front end eee SB BE SB SB BSB BE BE BEB BP BE EB Ple Camera Frontend Bias Generation Clock amp Timing Generation Clock Drivers Oscillator FPGA ADC VGC g Pixel to be transferred
40. mechanical forces like torsion tension and compression e g by mounting the boards or the cabling Make sure that no forces are induced to the connectors by using sufficient cable pull reliefs 14 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 2 SMARTEK Vision Giganetix Camera Models 2 1 3 2 Technical Drawings Sensor Head Dimensions C Mount se pe b 0 45 0 14 1 38 Figure 7 Technical measures of board level sensor head all dimensions are in mm inch 1 5 SMARTEK Vision Giganetix User Manual Version 2 4 0 VYsmartek vision 2 SMARTEK Vision Giganetix Camera Models Mainboard Dimensions we Ampheno Figure 8 Technical measures of board level mainboard all dimensions are in mm inch 1 6 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 2 SMARTEK Vision Giganetix Camera Models 2 1 4 Giganetix Plus Camera with Standard Housing GCP Series The Giganetix Plus camera series is the enhanced version of the GC camera and allows with its extended hardware the integration of larger high end sensors with higher data rates Thanks to its well spaced hardware it supports features like the factory based tap calibration and allows the integration of further image processing features right up to fully customer specific implementations Figure 9 Giganetix Plus Camera with standard housing External dimensions 1 97 x 1 97 x 1
41. mm inch 1 1 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 2 SMARTEK Vision Giganetix Camera Models 2 1 3 Giganetix Board Level GC BL Series The board level version of the Giganetix camera series aims on the OEM integration of the camera into closed customer devices It provides the complete electrical design of the GC mainboard on a single board having a separated sensor head supporting cable lengths of up to 150 mm Figure 5 Giganetix Board Level Camera External dimensions 35 x 35 x 26 2 mm Sensor board 1 38 x 1 38 x 1 03 in ea 65 x 43 x 19 mm Head board 2 56 x 1 69 x 0 75 in Housing No housing sensor head and mainboard only connected via FPC cable Weight Approx 60g approx 2 10Z Storage temperature 30 C to 60 C 22 F to 140 F Operating temperature 0 C to 45 C 32 F to 113 F Operating humidity 20 to 80 relative non condesing Storage humidity 20 to 80 relative non condesing Power requirement 10V to 24V DC via Power and O interface Power over Ethernet PoE Lens mount C Mount Connectors Screw mount Ethernet RJ45 Communication and Data Circular Hirose 12 pin Power and O Interface Digital input 2 input channels opto isolated Digital output 2 output channels opto isolated Conformity RoHS Il GigE Vision GenlCam PoE IEEE802 3af 1 measured at the direct board environment Table 6 Mechanical and electrical specifications 1 2 SMARTEK Vision Gigane
42. multiple frames the count of frames is defined in the AcquisitionBurstFrameCount property Table 63 Trigger Mode While all TriggerMode properties are set to Off and the AcquisitionMode property to Continuous the camera acquires continuously images 130 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 4 Image Acquisition 4 5 2 3 Trigger Source The TriggerSource property specifies the source which is used to initiate the trigger signal An internal signal or one of the physical input lines can be selected as the trigger source The selected TriggerSelector must have its TriggerMode set to On TriggerSource can take any of the values shown in Table 64 Value Description Line1 Uses the physical Input Line1 as trigger source Line2 Uses the physical Input Line2 as trigger source Software Uses a Software Trigger as trigger source the TriggerSoftware command can be send to the camera via the API Table 64 Trigger Sources 4 5 2 4 Trigger Activation For the external trigger signals applied on the physical input lines of the camera available in the TriggerSource property it is possible to define the kind of edge which initiates a trigger The TriggerActivation property offers two values described in Table 65 Value Description RisingEdge Trigger initiated with Rising Edge FallingEdge Trigger initiated with Falling Edge Table 65 Trigger Activation modes Figure 105 shows the exposure period of the se
43. of discovered devices are displayed in the tab Device Info Among others it contains the device name firmware and hardware versions as well as the current IP configuration It is accessible already before a connection has been established The Parameters tab shown in Figure 75 shows the parameters of the camera and is only accessible while a connection to the camera is established It displays a tree of features extracted from the GenlCam description file of the camera and enables the adjustment of camera settings according to the needs of the application Device properties start stop Parameters Device Info Registers Visibility Guru Refresh Property Value DevicelLontral ImageFormatControl E Acquisition Control DigttalOControl Analog ontrol TransportLayerContral UsersetControl UserValueControl E CounterAnd TimerControl ChunkDataControl Figure 75 Device Properties Parameters tab According to the current settings of the camera the acquisition can be started by pressing the Start button shown in Figure 76 To receive a continuous image stream from the camera without having any external trigger signals applied it must be ensured that the AcquisitionMode is set to Continuous and the TriggerMode is set to Off 93 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 3 Smartek GigEVisionSDK Library Parameters D
44. represented by three bytes or 24 bits The Mono10Packed pixel format in SMARTEK Vision digital cameras is specified as shown below PixelFormat Mono10Packed Description 10 bit packed monochrome unsigned Pixel size 3 bytes for two pixels Value range 0 1023 Table 75 Specification PixelFormat Mono10Packed The memory layout of the image with Mono10Packed pixel format is shown in Figure 123 Starting from the upper left of the image byte O and first 2 bits of byte 1 represents the value of pixel P 1 1 Bits 5 and 6 in byte 1 together with all bits from byte 2 represents the value of pixel P 1 2 and so on In each byte the bitorder is by default little endian the least significant bit is assigned to bit O and the most significant bit to bit 9 154 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 5 Image Transmission over Gigabit Ethernet P 1 1 P 1 2 SS y F 4 7 Gp prepr h e Figure 123 Image layout with pixel format Mono10Packed P 5 4 2 3 Mo ono12Packed In an image with the pixel format Mono12Packed each two pixel values P are represented by three bytes or 24 bits The Mono12Packed pixel format in SMARTEK Vision digital cameras is specified as shown below PixelFormat Mono12Packed Description 12 bit packed monochrome unsigned Pixel size 3 bytes for two pixels Value range 0 4095 Table 76 Specification PixelFormat Mono12Packed The memory la
45. reverse function can be applied q 10 2 The Giganetix cameras provide the real value of the analog to digital converter to the user As the sensor signal at saturation is usually a fraction of the level needed to generate a maximum digital value at the analog to digital converter it is per default higher than 0 dB or factor 1 in linear scale Usual default values are between 12 dB and 15 dB where the useful signal is fitted only to the input of the analog to digital converter but not enhanced to improve e g the image brightness Gain modification is also useful for enhancing the image brightness especially in low light condition Increasing a gain value means increasing the intensity of each pixel resulting in a brighter image However the image noise will also increase when gains are increasing Figure 99 shows two images with different gain settings The image on the right is captured with a gain value of 19 dB while the image on the left is captured with a gain value of 14 dB Like expected the right image appears brighter than the left one 1 1 7 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 4 Image Acquisition Figure 99 Captures under different gain settings The analog gain on SMARTEK Vision digital cameras is configurable by the GenlCam Float property Gain in combination with the Enumeration property GainSelector The minimum and maximum gain values for each camera model is shown in 2 2 Sensor I
46. right After applying the Gamma Correction value the brightness levels should match the values known from the calibration chart and represent a Gamma of 1 0 If it is intended to display the image to the human eye the gamma of the display device should be known Based on the device s gamma the Gamma Adjustment process could be started encoding linear luminance to match the non linear characteristics of the display device a common display gamma value is 2 2 After gamma adjustment the displayed image appears luminance correct on the display device Gamma Gamma Adjustment Correction Sensor Gamma Gamma 1 0 Adjusted Gamma Display Gamma Gamma 1 0 Figure 153 Gamma correction workflow 191 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 7 Image Processing in GigEVisionSDK Gamma curves are defined by the following formula where x is the percentage input luminance y the percentage output luminance a the darkest percentage brightness value ideally 0 b the digital gain and c the gamma y a bx Further x can be determined based on the bit depth n by the following formula _ pixelvalue x o The appropriate gamma curve can be determined by capturing an image of a calibrated gray scale showing a linear progression over a brightness of 0 to 100 Gamma Correction in GigEVisionSDK In the GigEVisionSDK the ImageProcAPI provides the programming interface for setting and executing the gamma correction algorit
47. shown below FrameTransferDelay numberOfPackets x packetTransferTime Frame TransferDelay Frame Transfer Delay expressed in time unit ns packet TransferTime time required to transfer a packet over the network numberOfPackets amount of packets contained in one frame packetTransferTime byteTransferTime totalBytesInPacket byte TransferTime time to transfer one byte over the network It is 8ns on Gigabit Ethernet network totalBytesInPacket total number of bytes transferred in one packet totalBytesInPacket GevSCPSPacketSize sizeOfEthernetHeaders where sizeOfEthernetHeaders is 38 bytes which includes inter frame gap preamble header and CRC PayloadSize numberOfPackets effectiveBytesInPacket Payloadsize frame size in bytes retrieved from camera effectiveBytesInPacket number of effective bytes transferred in packet without headers effectiveBytesInPacket GevSCPSPacketSize PHeaderSize UDPHeaderSize GVSPHeaderSize where PHeaderSize is 20 bytes UDPHeaderSize is 8 bytes and GVSPHeaderSize is 8 bytes Frames sending flow cameras triggered lt P frame transfer ready Frames receiving flow next trigger allowedq Camera 1 Frame frame transfer delay Oms Camera 2 frame transfer delay 10ms 10ms Frame Camera Frame i 100 bandwith utilization Camera2 Frame1 100 bandwith utilization Camera3 Frame1 100 bandwith utilization
48. the different acquisition modes how to control external triggering and how the image acquisition rate can be limited Table 60 gives a brief overview about all features that are available to control the image acquisition in the cameras Image Acquisition Features Short description AcquisitionMode AcquisitionStart AcquisitionStop AcquisitionAbort AcquisitionFrameCount AcquisitionBurstFrameCount AcquisitionFrameRate Trigger Features TriggerMode TriggerSoftware TriggerSource TriggerActivation TriggerDelay Defines the number of frames to be captured Three options are available e Continuous e SingleFrame e MultiFrame Start acquisition Stop acquisition Abort acquisition Number of frames to acquire in MultiFrame acquisition mode Number of frames to acquire for each FrameBurstStart trigger Controls the acquisition rate in Hz at which the frames are captured Short description Enable Disable the trigger mode Two options are available e On e Off Generate a software trigger Select the source that fires a trigger signal e Line1 Physical Input Line 1 e Line2 Physical Input Line 2 e Software Define the clock edge of the input signal for activate triggering e Rising Edge e Falling Edge Specify the delay in microseconds us to incoming trigger signals Table 60 Camera features for image acquisition control In the following chapter the image acquisition is divided into two general types th
49. trigger mode has its own parameters all of them can be active at the same time The camera is in trigger operation mode as soon as one of the modes selectable by the TriggerSelector is enabled via its TriggerMode property 4 5 2 1 Trigger Selector The TriggerSelector property provides access to the settings of the different trigger operating modes supported by the camera shown in Table 62 Value Description AcquisitionStart Starts the acquisition like configured in AcquisitionMode FrameStart Starts the acquisition of a single frame FrameBurstStart Starts the acquisition of multiple frames the count of frames is defined in the AcquisitionBurstFrameCount property Table 62 Supported Types of Triggers All available modes can be configured separately and are valid in parallel allowing to assign different behavior to each trigger source 4 5 2 2 Trigger Mode The property TriggerMode enables and disables the triggered operation of the camera As soon as it is enabled for at least one TriggerSelector property the camera s sensor falls in stand by mode where it waits for an external signal defined in the TriggerSource property The TriggerMode property is individually available for each TriggerSelector and can take one of the values shown in Table 63 Value Description On Enables trigger operation for the current TriggerSelector Off Disables trigger operation for the current TriggerSelector FrameBurstStart Starts the acquisition of
50. with White Balancing right White Balance in the GigEVisionSDK In the GigEVisionSDK the ImageProcAPI provides the programming interface for executing the White Balance algorithm The bit depth and image types supported are shown in Table 93 Supported bit depth Supported image input 8 bit per channel 16 bit per channel Monochrome J V Raw Bayer V V Color RGB J J Table 93 White Balance supported bit depth and supported image type For a detailed description on how to use the auto white balance feature please refer to the GigEVisionSDK API Help located in the doc folder of the GigE VisionSDK installation directory White Balance in the GigEVisionClient In GigEVisionClient the user can apply the White Balance algorithm once or repeatedly for every incoming frame All options can be can be accessed in the Image Processing Properties panel under Color shown in Figure 152 If not visible the panel can be enabled by the menu bar entry Control gt Image Processing Properties The single white balance mode is recommended in scenes where the lighting condition is constant so there will be no computation overhead The correction values are calculated once when the Calc button is pressed The Auto White Balance mode is disabled by default as soon as enabled by the Auto White Balance AWB check box it calculates an applies correction gains for every frame This mode is recommended when the lighting condition may permanently change 1 8
51. 1 0 2c ee 129 4 5 2 Triggered Operation aoao a a 130 4 6 Digital Input Output Control aoao ee 133 4 6 1 InputLines 133 4 6 2 Output Lines 2ceeeeeeeeeeeeeeeeeaeeeeeeeeeeaeeeecaecesa 136 5 Image Transmission over Gigabit Ethernet 137 5 1 Smartek GigE Vision Filter Driver 2 2 137 5 1 1 UDP Packet Resend Mechanism 0 000 eee eee ees 137 5 1 2 Inter Packet Delay 0 0 0 0 143 5 1 3 Frame Transfer Delay 0 2 0 0 ce 145 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision Table of Contents D2 LANIF CGOnHguUalON s sss sses ee etteren neern 147 5 3 Network Interface Optimization ooo aa a a a 148 5 3 1 Choosing the right Network Interface Card noanoa a 0 eee ee ee 148 5 3 2 Using Jumbo Frames Packets aooaa eee ee ee 148 5 3 3 Raising Receive Buffers 1 aaa 150 5 3 4 Disable the Interrupt Moderation Rate o oo cee ee ee 151 5 3 5 Disable the Flow Control nononono a a 192 5 4 Digital Image and Pixel Formats aoaaa 153 5 4 1 Image Layout aoaaa aa REESE amp H amp S 153 5 4 2 Supported Pixel Formats for Monochrome Cameras aoaaa 154 5 4 3 Supported Pixel Formats for Color Cameras aaoo a 156 5 4 4 Pixel Formats Supported by the SMARTEK Vision Giganetix camera family 158 O20 CAUnK Bala oreraa 8 5 6 eE a a Eo EH Be ee 161 5 5 1 Getting Started with Chunk Data a aooo a a a ee 162 5 5 2 Additionalchunks
52. 1 Pixel formats supported by SMARTEK Vision color cameras firmware update There are two different firmware versions for those camera models On dual tap CCD camera models 16 bit pixel formats are supported by the means of one supporting 8 bit pixel formats and the other supporting 16 bit pixel formats 1 59 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 5 Image Transmission over Gigabit Ethernet The 16 Bit formats of SMARTEK Vision Giganetix cameras contain the full in chapter N 2 2 Sensor Information and Technical Specification All Models Separate specified ote bit depth available by the sensor As this are in most cases less than 16 Bit of payload the effective image data is aligned to the Most Significant Bits MSB 1 60 SMARTEK Vision Giganetix User Manual Version 2 4 0 VYsmartek vision 5 Image Transmission over Gigabit Ethernet 5 5 Chunk Data Chunk Data are information related to the image captured and transmit by a GigE Vision camera As soon as active the camera adds different kinds of information to each captured image For instance this information can be the image itself as well as data which has been extracted from the image or configuration parameters like the area of interest configuration pixel format state of O pins and user defined data Each chunk can be individually enabled or disabled For example if frame counter chunk is enabled after each captured image the camera
53. 10 4 2to9 5 1 to 8 6 0 to 7 Table 56 DigitalShift values and used ADC bits Shifting the significant pixels to lowers has two main effects similar to doubling the analog amplification of the signal the brightness in the image will double with each step It thus enhances the maximum signal raise possible by the analog gain Further it makes the lower bits of the ADC accessible to detect very low signals while transferring 8 bit pixels without a further amplification of the signal 1 23 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 4 Image Acquisition 4 4 Region of Interest ROI The Region of Interest feature allows portion of the sensor array to be read out and transmitted over transport layer Information from pixels outside the ROI are discarded Decreasing the ROI generally leads to increasing the maximum allowed frame rate OffsetX a gt A A OffsetY a Maximum height Height ie lt gt Width lt Maximum width Figure 102 Region of Interest Region of Interest is defined by horizontal OffsetX and vertical OffsetY offset from image origin top left corner and region size in horizontal Width and vertical Height direction Parameter Type Description Wiath Integer Horizontal size of the ROI image in pixels Height Integer Vertical size of the ROI image in pixels OffsetX Integer Horizontal offset from the origin to the ROI in pixels OffsetY
54. 3 30 58 Copyright 2015 by Smartek d o o All rights reserved For further information please contact our sales partners 211 8 Contact Information SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 9 Revision History 9 Revision History Version number 2 1 1 2 1 2 2 1 3 2 1 4 2 2 0 2 3 0 2 4 0 Date 2014 09 15 2014 10 02 2014 10 17 2015 02 13 2015 03 18 2015 07 13 2015 12 01 Changes Preliminary version of the document Added chapter Image Processing on Camera Added subchapter Center X Y Added subchapter Frame Transfer Delay Mono10 12Packed support updated camera features list Replaced subchapters Area of Interest Control AOI with Region of Interest and Center X Y with ROI Centering added subchapter Multiple ROI added subchapter Automatic Exposure and Gain Control updated camera features list Updated chapter Sensor Information and Technical Specification with GC1932 camera model updated chapter List of Supported Features Updated chapter Sensor Information and Technical Specification with GCP2061 and GCP2461 camera models updated references to ROHS certification updated chapter List of Supported Features 212 SMARTEK Vision Giganetix User Manual Version 2 4 0
55. 31M GC1031C GC1391M GC1391C GC1392M GC1392C GC1621M GC1621C GC2441M GC2441C GC1021M GC1021C GC1291M GC1291C GC1601M GC1601C GC1921M GC1921C GCP1931M GCP1931C GCP2061M GCP2061C GCP2461M GCP2641C GCP1941M GCP1941C GCP2751M GCP2751C GCP3381M GCP3381C GCP4241M GCP4241C This equipment is in compliance with the essential requirements and other relevant provisions of the following EC directives Reference No Title 89 336 EEC 92 31 EECElectromagnetic Compatibility EMC directive Following standards or normative documents EN 55022 1994 Class A A1 1995 A2 1997 EN 61326 1997 Class A A1 1998 A2 2001 A3 2008 EN 55024 1998 A1 2001 A2 2003 The equipment specified above was tested conforming to the applicable Rules under the most accurate measurement standards possible and that all the necessary steps have been taken and are in force to assure that production units of the same product will continue comply with the requirements Damir Dolar Dipl Ing Hardware Engineer Smartek d o o 80 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 2 SMARTEK Vision Giganetix Camera Models 2 4 2 FCC Manufacturer Smartek d o o Dobrise Cesarica 5 HR 40000 Cakovec Croatia Product Digital Gigabit Ethernet Camera Type Family Giganetix Standard Giganetix S90 Version Giganetix Plus Type of Equipment GC1281M GC2041C GC2591M GC2591C GC3851M GC3851C GC1932M GC1932C G
56. 55 125 Pixel Value RGB Cursor 71 67 60 Data Transfer Rate 42 28 MBps 193 Figure 154 Gamma Correction dialog SMARTEK Vision Giganetix User Manual Version 2 4 0 VYsmartek vision 7 Image Processing in GigEVisionSDK 7 2 6 Color Filter Array Interpolation Demosaicing Debayering Each pixel on a digital camera sensor contains a light sensitive photo diode which measures the amount of incoming light As photodiodes are monochromatic devices they are unable to determine the distribution of the incoming light to different wavelengths A common way to distinguish between different light wavelengths or colors is to place an array of color filters Color Filter Array CFA on top of the sensor to filter out for example the red green and blue components of light falling onto it Among many CFA patterns the most commonly used is the Bayer pattern For each 2x2 set of pixels two diagonally opposed pixels are equipped with filters which are only transmissive for green the other two only for red and blue Since green carries most of the luminance information for the human eye its sampling rate is twice as that of R and B Figure 155 shows the GR filter alignment which means that the pattern starts with green G followed by red R GR Figure 155 Bayer Filter Pattern GR The illustration in Figure 155 is for demonstration purposes only In effect each pixel is described by an intensity value which appears gray to the hu
57. 6 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 7 Image Processing in GigEVisionSDK 7 2 Image Processing Algorithms 7 2 1 Luminance Look Up Table LUT In image processing a Look Up Table or LUT is used to transform input pixel values into desired output pixel values by using mapping operations Essentially a luminance look up table is a list with 2 entries where n is the bit depth of the input image Each entry in the table has an index and represents an output luminance value The indices are unique and numbered continuously from 0 to 2 Figure 137 shows an example of an 8 bit look up table Lookup table index value Figure 137 8 bit look up table The index represents the luminance of a pixel in the image which is exchanged by the value e When an input pixel value has a value of 1 this value will be used as the index in the table The corresponding 8 bits output pixel value at index 1 will be 20 e When an input pixel value has a value of 3 this value will be used as the index in the table The corresponding 8 bits output pixel value at index 3 will be 33 e When an input pixel value has a value of 253 this value will be used as the index in the table The corresponding 8 bits output pixel value at index 253 will be 254 Look up tables are especially suited for point operations in image processing where output pixel values depend only on the corresponding input pixel values In the fol
58. 750 Wavelength nm Figure 24 Relative response of GC653 Color from sensor datasheet 34 SMARTEK Vision Giganetix User Manual Version 2 4 0 VYsmartek vision 2 SMARTEK Vision Giganetix Camera Models 2 2 9 GC781M GC781C GC GC S90 GC BL Image Sensor Sony ICX415 Chromatics Monochrome Color Sensor type CCD Sensor resolution H x W 782x582 776x580 782x582 Optical size 1 2 Pixel size in um 8 3 x 8 3 Analog gain in dB 5 1 to 41 8 Shutter Progressive Scan Exposure time 10us to 10s Max frame rate 8Bit in Hz 68 ADC bit depth 8 bit 14 bit Pixel data formats mono model Mono8g Mono16 Pixel data formats color model Mono8 Mono16 BayerRG8 BayerRG16 Synchronization Free run external and software trigger single shot multi shot Exposure control Freely programmable via GigE Vision interface Power consumption aux 12V 2 6W 2 6W 2 5W Power consumption PoE 3 2W Not supported 3 2W Table 16 Model specific specification of GC 781 35 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 2 SMARTEK Vision Giganetix Camera Models Relative Response 0 9 0 8 0 7 0 6 0 5 0 4 0 3 0 2 0 1 Relative response 350 450 550 650 750 850 950 1050 Wavelength nm Figure 25 Relative response of GC781 Monochrome from sensor datasheet 0 9 0 8 0 7 0 6 0 5 0 4 0 3 0 2 0 1 Relative response 350 450 550 650 750 Wavelength nm Figure 26 Relative response of GC781 Color from sen
59. 9 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 7 Image Processing in GigEVisionSDK File View Control Displays Help Model _ m Disconnect Device e X Device Properties __ Device Property Info DeviceControl Phar cho Color AE Matrix GIMP X Demosaic Colorized HO Linear Giinearborder Y Gray White Nhite Balance oe eee O Average Gamma Gain Offset Red 74 1 00 J 1 50 I 0 00 1 00 J 1 00 i 0 00 I a amp fol boy boy Load Values Save Values Image Size 1936 x 1456 Framerate Acquisition Display 14 FPS 14FPS Position Cursor x Y 149 53 Pixel Value RGB Cursor 50 50 44 Data Transfer Rate 39 46 MBps Figure 152 White Balance feature in the GigE VisionClient e Calc Start white balancing calculation once e Auto Repeatedly apply white balancing to the images e Reset Reset every results calculated by the white balancing process to default If auto white balance is enabled before it will be disabled 1 90 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 7 Image Processing in GigEVisionSDK 7 2 5 Gamma Correction Gamma is an important characteristic of digital imaging systems as it translates between the light sensitivity of the human eye and thus of the image sensor Generally it has to be distinguished that there are basically two definitions of gamma The first one is called Gamma Correction the second one Gamma Adju
60. 9 0 8 0 7 0 6 0 5 0 4 0 3 0 2 0 1 Relative response 350 450 550 650 750 Wavelength nm Figure 22 Relative response of GC652 Color from sensor datasheet 32 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 2 SMARTEK Vision Giganetix Camera Models 2 2 8 GC653M GC653C GC GC S90 GC BL Image Sensor Sony ICX414 Chromatics Monochrome Color Sensor type CCD Sensor resolution H x W 659x494 656x492 659x494 Optical size 1 2 Pixel size in um 9 9 x 9 9 Analog gain in dB 5 1 to 41 8 Shutter Progressive Scan Exposure time 10us to 10s Max frame rate 8Bit in Hz 97 ADC bit depth 8 bit 14 bit Pixel data formats mono model Mono8 Mono16 Pixel data formats color model Mono8 Mono16 BayerRG8 BayerRG16 Synchronization Free run external and software trigger single shot multi shot Exposure control Freely programmable via GigE Vision interface Power consumption aux 12V 2 6W 2 6W 2 5W Power consumption PoE 3 2W Not supported 3 2W Table 15 Model specific specification of GC653 33 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 2 SMARTEK Vision Giganetix Camera Models Relative Response 0 9 0 8 0 7 0 6 0 5 0 4 0 3 0 2 0 1 Relative response 350 450 550 650 750 850 950 1050 Wavelength nm Figure 23 Relative response of GC653 Monochrome from sensor datasheet 0 9 0 8 0 7 0 6 0 5 0 4 0 3 0 2 0 1 Relative response 350 450 550 650
61. API provides the programming interface to generate histogram data from images The bit depth and image types supported by the histogram feature are shown in Table 87 Fora detailed description on how to instantiate this feature in user applications please refer to the GigE VisionSDK API Help located in the doc folder of the GigE VisionSDK installation directory Supported bit depth Supported image input 8 bit per channel 16 bit per channel Monochrome J V Raw Bayer J V Color RGB J Table 87 Histogram supported bit depth and image types 1 13 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 7 Image Processing in GigEVisionSDK Histogram in the GigEVisionClient In the GigEVisionClient application the histogram feature can be enabled by the menu bar entry Control gt Histogram shown in Figure 135 File View Control Displays Help e Find Devices aS Set Ip To Device We Connect Device KO Disconnect Device Firmware Update DeviceC ontrol VVicevyenaor image Processing Properties Color AE Matrix GIMP LUT Other Demosaic Colorized HQLinear Bilinearborder White Balance Cale Reset Auto Average Gamma Gain Offset Red z3 1 00 B 1 50 E 0 00 Green ss 1 00 I 1 00 IJ 0 00 Bue s5 LoM eo bhog Inverse Gamma Load Values o 84 6120 160 200 240 Image Size 1936 x 1456 Framerate Acquisition Display 15 FPS 15FPS Position Cursor x Y 53 1749
62. ARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 5 Image Transmission over Gigabit Ethernet 5 4 4 Pixel Formats Supported by the SMARTEK Vision Giganetix camera family Monochrome Cameras CMOS Mono8 Mono10Pack Mono12Pack Mono16 GC1281M O O GC2591M GC3851M O O GC1932M O GCP1931M 9 GCP2061M GCP2461M CCD Mono8 Mono10Pack Mono12Pack Mono16 GC651M O O GC652M GC653M O O GC781M O O GC1031M O O GC1291M gt GC1391M O O GC1392M O O GC1621M O O GC2441M O GC1021M O O GC1601M O O GC1921M O O GCP1941M GCP2751M GCP3381M GCP4241M Table 80 Pixel formats supported by SMARTEK Vision monochrome cameras 158 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 5 Image Transmission over Gigabit Ethernet Color Cameras CMOS BayerGR8 BayerGR16 BayerRG8 amp BayerRG16 GC2041C O 2 GC2591C GC3851C O O O GC1932C O O GCP1931C O O GCP2061C O GCP2461C O O CCD BayerGR8 BayerGR16 BayerRG8 BayerRG16 GC651C O O GC652C GC653C O O GC781C O O GC1031C O O GC1291C O O GC1391C O O GC1392C O O GC1621C O O GC2441C O O GC1021C O O GC1601C O O GC1921C O O GCP1941C O Q GCP2751C O O GCP3381C O GCP4241C O O Table 8
63. C absolute maximum is exceeded The maximum current surge for outputs 25 mA Table 40 Electrical specification for digital output ei 220 Q MOCD207 M BC847BS Receptacle Ine ro 3 3 to 24 VDC OUTPUT 1 Gnd Ext Gnd y 270 Q Voltage Output Signal Output neo 2200 MOCD207 M re TEN 3 3 to 24 iEn i Ext Gnd g 2700 Voltage one i Iei Camera b E e a e a a e a e Figure 65 Digital output scheme C Exceeding the limits shown in Table 40 or reneging the wiring polarity shown in aution Figure 65 can seriously damage the device 76 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 2 SMARTEK Vision Giganetix Camera Models 2 3 3 Temperature Specification and Heat Dissipation The temperature specification given for storing and operation of all devices are measured at any location of the camera s housing If the camera is delivered without a housing the specified range refers to the direct ambient temperature of the board set at any location In operation it must be ensured that the internal heat generation of the camera is dissipated sufficiently to make the device or its environment not exceed the specified borders The camera will steadily heat up in the first hour of operation and should be monitored Beside the risk of damage a too high camera temperature also decreases the image quality of the sensor significantly The thermal noise generated in silicon based sensors raises exponentially with
64. C651M GC651C GC652M GC652C GC653M GC653C GC781M GC781C GC1031M GC1031C GC1391M GC1391C GC1392M GC1392C GC1621M GC1621C GC2441M GC2441C GC1021M GC1021C GC1291M GC1291C GC1601M GC1601C GC1921M GC1921C GCP1931M GCP1931C GCP2061M GCP2061C GCP2461M GCP2641C GCP1941M GCP1941C GCP2751M GCP2751C GCP3381M GCP3381C GCP4241M GCP4241C Directive FCC Part 15 Class A This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures e Reorient or relocate the receiving antenna e Increase the separation between the equipment and receiver e Connect the equipment into an outlet on a circuit different from that to which the receiver is connected e Consult the dealer or an experienced radio TV technician for help Mo
65. CD Sensor resolution H x W 1628x1236 1624x1234 1628x1236 Optical size 1 1 8 Pixel size in um 4 4 x 4 4 Analog gain in dB 5 1 to 41 8 Shutter Progressive Scan Exposure time 10us to 10s Max frame rate 8Bit in Hz 25 ADC bit depth 8 bit 14 bit Pixel data formats mono model Mono8 Mono16 Pixel data formats color model Mono8 Mono16 BayerRG8 BayerRG16 Synchronization Free run external and software trigger single shot multi shot Exposure control Freely programmable via GigE Vision interface Power consumption aux 12V 2 W 2 W 2 W Power consumption PoE 3 4W Not supported 3 4W Table 21 Model specific specification of GC 1621 45 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 2 SMARTEK Vision Giganetix Camera Models Relative Response 0 9 0 8 0 7 0 6 0 5 0 4 0 3 0 2 0 1 Relative response 350 450 550 650 750 850 950 1050 Wavelength nm Figure 35 Relative response of GC1621 Monochrome from sensor datasheet 0 9 0 8 0 7 0 6 0 5 0 4 0 3 0 2 0 1 Relative response 350 450 550 650 750 Wavelength nm Figure 36 Relative response of GC1621 Color from sensor datasheet 46 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 2 SMARTEK Vision Giganetix Camera Models 2 2 15 GC2441M GC2441C GC GC S90 GC BL Image Sensor Sony ICX625 Chromatics Monochrome Color Sensor type CCD Sensor resolution H x W 2448x2058 2448x2056 2448x2058 Op
66. CP2751M 6C D1 46 00 01 47 169 File View Control Displays Help w I PBD AA Devices Gx x GCP2751M _6C D11 46 169 254 187 190 Figure 72 Set Ip To Device icon A new window will open showing an access mask to the IP address subnet mask and gateway configuration of the chosen camera Make sure that the target IP address is not applied to another device in the network HB Set Devicelp Address 0 Ip Configuration X LLA DHCP Permanent Ip Address Ip Address 192 168 1__ 21_ Subnet Mask 255 255 255 255 Gateway 192 168 1__ 2__ ox cancel Figure 73 Set lp To Device dialog After fixing a valid IP address configuration to the camera the warning symbol next to the camera model name will change like shown in Figure 74 the Connect Device icon can now be used to connect to the selected camera GigEVisionClient GCP2751M 6C D1 46 00 01 47 169 File View Control Displays Help E eT E ay e ew PB ae Devices gt lt IP Address e i x GCP2751M__ 6C D1 46 169 254 187 190 lt Figure 74 Connect Device icon 92 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 3 Smartek GigEVisionSDK Library 3 6 2 3 Device Properties The Device Properties dialog contains all information and settings of the chosen camera provided by the camera s GenlCam file General informations about the camera selected from the list
67. EVisionClient GC651C 00 50 C2 70 84 F3 192 168 1 21 o S Menu bar File View Control Displa Help Toolbar w a GR 20a ME CNR ex v C e GC651C 0 50 C2 70 84 F3 192 168 1 21 E GC2441M 00 50 C2 70 88 7F 192 168 1 22 Device list Device Properties gt Start Stop Parameters Device Info Registers Device properties ny eae Image Property i Value DeviceControl display window Image Processing Properties Color AE Matrix GIMP LUT Other Xx Demosaic Colorized HQ Linear v Bilinear border v Gray White Balance Image Processing nat a properties Average Gamma Gain Offset Red 0 Green 0 2 00 I 3 00 0 00 E Bue o 1 00 I 1 00 E 0 00 Inverse Gamma Load Values Save Values Info bar Image Size No Image Framerate Acquisition Display OFPS OFPS Position Cursor X Y 46 698 Pixel Value RGB Cursor 0 0 0 Data Transfer Rate 0 00 KBps Figure 69 GigEVisionClient Graphical User Interface GUI Refer to Figure 70 for a full description of all GUI elements on the toolbar Set IP Save save To Disconnect Image Display Reset GUI to Device Device As Zoom In Enable GUI file oe ve We e B Q a a anger TTT Find Connect Open Zoom Zoom Floating Save Load Devices Device Image Reset Out Display GUI as GUI Enable default from file Figure 70 Toolbar description Due to the possibility that all the dialogs within the GigEVisionClient are dock
68. Exposure control Freely programmable via GigE Vision interface Power consumption aux 12V 4 1W Power consumption PoE 5 2W Table 29 Model specific specification of GCP1941 61 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 2 SMARTEK Vision Giganetix Camera Models Relative Response 1 0 0 9 pons TOF 0 6 0 5 0 4 0 3 0 2 0 1 0 0 400 500 600 700 800 900 1000 lative re R Wavelength nm Figure 51 Relative response of GCP1941 Monochrome from sensor datasheet 1 0 0 9 0 8 0 7 0 6 0 5 0 4 0 3 0 2 0 1 0 0 400 500 600 700 Relative response Wavelength nm Figure 52 Relative response of GCP1941 Color from sensor datasheet 62 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 2 SMARTEK Vision Giganetix Camera Models 2 2 23 GCP2751M GCP2751C GCP Image Sensor Sony ICX694 Chromatics Monochrome Color Sensor type 4 Tap CCD Sensor resolution H x W 2752 x 2208 Optical size i Pixel size in um 4 54 x 4 54 Analog gain in dB 12 to 24 Shutter Global Shutter Exposure time 10us to 10s Max frame rate 8 16Bit in Hz 18 8 ADC bit depth 8 bit 14 bit Pixel data formats mono model Mono8g Mono10Packed Mono12Packed Mono16 Pixel data formats color model Mono8 Mono16 BayerGR8 BayerGR16 Synchronization Free run external and software trigger single shot multi shot Exposure control Freely programmable via GigE Vision interface
69. GighVisionChent GOESIC 0 ie Veew Control Dnpleys Help wrw PD 130M anaes Devoe EA Preview Dialog GCAM 050 CD70BR7F 192168122 Floating Display Floating Display Camera 1 Camera 2 Figure 77 Preview Dialog and Floating Displays for multiple cameras N The maximum number of devices depends on the memory and performance of the ote host PC as each of the devices will cause an amount of load to the system 95 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 3 Smartek GigEVisionSDK Library 3 6 2 5 Image Processing Image processing algorithms provided by the ImageProc API can be accessed within the Image Processing dialog shown in Figure 78 It enables the user to apply and parameterize the available image preprocessing functions Image Processing Properties x Color AE Matrix GIMP LUT Other Demosaic Colorized HQ Linear v Bilinear border v Gray White Balance Calc Reset Auto Average Gamma Gain Offset Red 0 1 00 JB 1 00 i 0 00 Green 0 1 00 J 1 00 JM 0 00 E Bue 0 1 00 FM 1 00 E 0 00 E Inverse Gamma Load Values Save Values Figure 78 Image processing properties Color tab Table 45 shows an overview of the tabs and functions each tab includes A deep description of all listed image functions can be found in chapter 7 Image Processing in GigEVisionSDK Tab Functions Comment Demosaicing white balancing gamma gain and offset Color correction AE Auto Exposure
70. L file which contains look up table parameters for 8 bit per channel color and monochrome images The first line indicates the root element values Element color with attribute channel indicates the channel for which the parameters will be set The Child element LUT with the attribute index indicates the index or input value the attribute value indicates the output value for the current index 181 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 7 Image Processing in GigEVisionSDK Figure 144 shows the look up table feature located in the LUT tab within the Image Processing Properties panel If not visible the Image Processing Properties panel can be activated by the menu bar entry Control gt Image Processing Properties Property Te DeviceControl J F DeviceModelN GCPIS4IC ee ct CCC ae Image Size 1936 x 1456 Framerate Acquisition Display 15FPS I5FPS Position Cursor X Y 42 1166 Pixel Value RGB Cursor 0 0 0 Data Transfer Rate 42 28MBps Figure 144 Look up table feature in GigE VisionClient Enable LUT Enable application of look up table Reset Reset look up table to default values Load Values Load an user defined XML file with look up table parameters into the client Save Values Save the user defined look up table to a file Inverse Generate a predefined look up table which inverts the image 1 82 SMARTEK Vision Giganetix User Manual Version 2 4 0
71. M feature in GigEVisionClient Reset Reset look up table to default values e Inverse Generate a predefined look up table which inverts the image e Load Values Load an user defined XML file with look up table parameters into the client e Save Values Save the user defined look up table to a file A common way to set all LUT values at a time in the client is to describe the LUT in a XML file and load it to the camera To accomplish this use the Load Values feature in the GigEVisionClient see Figure 129 Please refer to the Look up table section in chapter 7 2 1 for more information about how a XML file is built By default the on camera look up table is disabled This feature is not visible until the user changes the Visibilty option in Device Properties panel to Expert or Guru see Figure 130 and Figure 131 167 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 6 Image Processing on Camera In order to modify individual LUT value it is neccessary that the Visibilty option is set to Guru Modifying each value in the LUT means first select the required index and second set the desired value see Figure 131 Device Properties Osiart sor Parameters Device Info Registers l Refresh Property Vee A an ChunkPixelFormat Not available ChunkWidth Not available ChunkHeight Not available ChunkOffsetX Not available ChunkOffsetY Not available ChunkLinePitch Not available
72. Max frame rate 8Bit in Hz 33 ADC bit depth 8 bit 14 bit Pixel data formats mono model Mono8g Mono16 Pixel data formats color model Mono8 Mono16 BayerGR8 BayerGR16 Synchronization Free run external and software trigger single shot multi shot Exposure control Freely programmable via GigE Vision interface Power consumption aux 12V 3 6W 3 6W 3 6W Power consumption PoE Not supported Not supported 4 3W Table 25 Model specific specification of GC1921 53 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 2 SMARTEK Vision Giganetix Camera Models Relative Response 0 9 0 8 0 7 0 6 0 5 0 4 0 3 0 2 0 1 Relative response 350 450 550 650 750 850 950 1050 Wavelength nm Figure 43 Relative response of GC1921 Monochrome from sensor datasheet 0 9 0 8 0 7 0 6 0 5 0 4 0 3 0 2 0 1 Relative response 350 450 550 650 750 850 950 1050 Wavelength nm Figure 44 Relative response of GC1921 Color from sensor datasheet 54 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 2 SMARTEK Vision Giganetix Camera Models 2 2 19 GCP1931M GCP1931C GCP Image Sensor Sony IMX174 Chromatics Monochrome Color Sensor type CMOS Sensor resolution H x W 1936 x 1216 Optical size 1 1 2 Pixel size in um 5 86 x 5 86 Analog gain in dB O to 24 Shutter Global Exposure time 26us to 10s Max frame rate 8 16Bit in Hz 51 25 ADC bit depth 8 bit 12 bit Pixel data
73. Moderation Interupt Moderation Rate Pv4 Checksum Offload Jumbo Packet Large Send Offload IPv4 Large Send Offload IPv6 Link Speed amp Duplex Link Speed Battery Saver Locally Administered Address Figure 117 Network interface card advanced driver settings Jumbo Packets Gigabit Ethernet Switches Standard or simple network switches unmanaged which support Jumbo Frames Packets usually have this feature enabled per default as they offer no way of configuration Professional or so called managed switches which provide a configuration interface in most cases with a web based GUI have it in many cases disabled as it is configurable for each port separately For validation please refer to the documentation of your individual device 1 49 SMARTEK Vision Giganetix User Manual Version 2 4 0 VYsmartek vision 5 Image Transmission over Gigabit Ethernet 5 3 3 Raising Receive Buffers The receive buffer size of the network interface card represents a reserved memory in the system memory which is used to buffer incoming data Especially at the high bandwidth of Gigabit Ethernet cameras it is recommended to raise the buffer size for at least the incoming packets receive buffers to the supported maximum As it is a feature of the network interface card it usually can be accessed via its driver settings On Microsoft Windows operating systems it can be accessed on the following way 1 Execute ncpa cpl e
74. NORESTART TYPE minimal There are three types of installations that can be performed 1 TYPE minimal minimal installation binaries only 2 TYPE compact compact installation binaries headers docs and samples 3 TYPE full full installation binaries headers docs samples and sources 86 SMARTEK Vision Giganetix User Manual Version 2 4 0 VYsmartek vision 3 Smartek GigEVisionSDK Library 3 4 Manual Filter Driver Installation Uninstallation lf the SMARTEK Vision GigEVision Filter Driver needs to be installed manually it can be installed independently of the GigEVisionSDK by executing a batch script bat located in the SDK s installation directory after successfully installing the GigEVisionSDK This is for example the case if the first instance of the GigEVisionClient starts without the filter driver showing the message in Figure 68 Additionally a warning message in the top bar of GigEVisionClient is displayed Warning Smartek Filter Driver not loaded i GigEVisionClient warning i Smartek Filter Driver not loaded OK Figure 68 Warning Smartek Filter Driver not loaded The batch scripts can be found in a subfolder of the installation directory By default the GigEVisionSDK is installed into the following folder C Program Files SMARTEKvision GigEVisionSDK The driver specific files are located in the following subfolder drivers FilterDriver The driver is being installed
75. Pixel Value RGS Cursor 0 0 0 Data Transfer Rate 42 28 MBps Figure 135 Histogram feature in GigE VisionClient e Skip Images default 5 Number of frames to skip before a new histogram is calculated and the GUI is updated e Enable Disable Active deactivate histogram calculation 1 14 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 7 Image Processing in GigEVisionSDK 7 1 2 Average Luminance Calculation The Average Luminance algorithm sums up all pixel values on each channel of an image and calculates the average value by dividing the sum of pixel values by number of pixels on this channel Pixelvaluechannel Averagevaluechannel Totalpixelschannel For single channel images only one average value is calculated while for raw color images each channel has its own value Calculating average values of an image is a fundamental operation in image processing and serves as a basis calculation for algorithms like auto exposure and auto white balancing Average Luminance Calculation in the GigEVisionSDK In the GigEVisionSDK the ImageProcAPI provides the programming interface to generate average luminance data of an image The bit depth and image type supported are shown in Table 88 For a detailed description on how to use the average value calculation feature please refer to the GigEVisionSDK API Help located in the doc folder of the GigEVisionSDK installation directory Supported bit depth
76. Processing in GigEVisionSDK Gimp HSL in the GigEVisionClient In the GigEVisionClient the GIMP HSL manipulation options can be accessed in the Image Processing Properties panel under GIMP shown in Figure 163 If not visible the panel can be enabled by the menu bar entry Control gt Image Processing Properties If Master is selected then values are changed for every channel at once GigEVisionClient GCP1941C 6C D1 46 00 01 6D 192 168 0134 File View Con rol Displays Help S Set Ip To Device oe Connect Device ___ Disconnect Device Firmware Update C Preview 8 Devices 3 Device Properties i _ Device Property Info Start aA Parameters Mee art A Visbity Gur o Histogram a i Scala _ Log Property _ DeviceManufa Giganetix GigE Vision c ja eerie H n F I image Proceming Properties 3t Enable Hue Lightness Saturation GIMP algorithm m BO E Image Size 19365 1456 Framerate Acquisition Display 18FP5 4FPS Position Cursor x Y 1208 1715 Pixel Value RGB Cursor 00 0 0 Data Transfer Rate 50 74 MBps Figure 163 Color GIMP dialog Enable activate deactivate the GIMP Hue Saturation Lightness processing Reset Sets all settings to default values Load Values Load an file with user defined Hue Saturation and Lightness values Save Values Save the current Hue Saturation and Lightness values to a file 202 SMARTEK Vision Giganetix User Manual Version 2 4 0
77. Qsmartek vision 2 SMARTEK Vision Giganetix Camera Models Relative Response 0 9 0 8 0 7 0 6 0 5 0 4 0 3 0 2 0 1 Relative response 350 450 550 650 750 850 950 1050 Wavelength nm Figure 13 Relative response of GC2591 Monochrome from sensor datasheet 0 9 0 8 0 7 0 6 0 5 0 4 0 3 0 2 0 1 Relative response 350 450 550 650 750 Wavelength nm Figure 14 Relative response of GC2591 Color from sensor datasheet 24 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 2 2 4 GC3851M GC3851C 2 SMARTEK Vision Giganetix Camera Models GC GC S90 GC BL Image Sensor Chromatics Sensor type Sensor resolution H x W Optical size Pixel size in um Analog gain in dB Shutter Exposure time Max frame rate 8Bit in Hz ADC bit depth Pixel data formats Synchronization Exposure control Power consumption aux 12V Power consumption PoE Aptina MT9J003 Monochrome Color CMOS 3848x2762 W253 3856x2764 3856x2764 1 67 x 1 67 0 to 23 5 Rolling free run Global reset release triggered 36us to 10s 7 8 bit Mono8 BayerGR8 Free run external and software trigger single shot multi shot Freely programmable via GigE Vision interface 2 5W 2 5W 2 5W 3 2W Not supported 3 2W Table 11 Model specific specification of GC3851 25 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 2 SMARTEK Vision Giganetix Camera Models Relative Response
78. S ap Ra fe 1 ET Ras Q Oo Ras O ap Pa D WY O T ra n WL Y c 20 i Figure 88 Dual Tap Interline Transfer CCD Like shown in Figure 88 where the schematic of a dual tap or 2 tap sensor is shown the active pixels are read out in the same way like on a Single Tap CCD but from two sides This mechanism leads to a doubled frame rate compared to an equally clocked single tap CCD but also to an issue As both arrays are read out synchronously the pixel data of each tap has to be amplified and digitized by an individual circuit As electrical components are subjected to tolerances each circuit behaves slightly different over temperature This causes in slightly dissimilar brightness levels between the taps shown in Figure 89 left which need to be matched for a proper functioning of the camera depending on the actual device temperature right 1 05 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 4 Image Acquisition Figure 89 2 Tap Sensor Unbalanced image left and matched image right The cameras of the Giganetix family contain two mechanisms to appropriately match the sensor taps cameras of the Giganetix series Standard GC S90 and GC BL provide by default an automatic online matching which is described with its i Note configuration parameters in chapter 4 3 4 Automatic Tap Balancing All cameras of the Giganetix Plus series GCP are factory calibrated in th
79. Sensor Sony ICX285 Chromatics Monochrome Color Sensor type CCD Sensor resolution H x W 1392x1040 1384x1038 1392x1040 Optical size 2 3 Pixel size in um 6 45 x 6 45 Analog gain in dB 5 1 to 41 8 Shutter Progressive Scan Exposure time 10us to 10s Max frame rate 8Bit in Hz 32 ADC bit depth 8 bit 14 bit Pixel data formats mono model Mono8g Mono16 Pixel data formats color model Mono8 Mono16 BayerRG8 BayerRG16 Synchronization Free run external and software trigger single shot multi shot Exposure control Freely programmable via GigE Vision interface Power consumption aux 12V 2 8W 2 8W 2 8W Power consumption PoE 3 5W Not supported 3 5W Table 20 Model specific specification of GC1392 43 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 2 SMARTEK Vision Giganetix Camera Models Relative Response 0 9 0 8 0 7 0 6 0 5 0 4 0 3 0 2 0 1 Relative response 350 450 550 650 750 850 950 1050 Wavelength nm Figure 33 Relative response of GC1392 Monochrome from sensor datasheet 0 9 0 8 0 7 0 6 0 5 0 4 0 3 0 2 0 1 Relative response 350 450 550 650 750 Wavelength nm Figure 34 Relative response of GC1392 Color from sensor datasheet 44 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 2 SMARTEK Vision Giganetix Camera Models 2 2 14 GC1621M GC1621C GC GC S90 GC BL Image Sensor Sony ICX274 Chromatics Monochrome Color Sensor type C
80. The GigEVisionClient provides the user the ability to load a pre defined look up table in form of an XML file into the application XML examples for look up tables are located in the GigEVisionSDK installation folder GIGE_VISION_SDK_PATH GenlCam_v2_4 xml custom lt xml version 1 0 encod ng UTF 8 2 gt lt values gt lt color channel Red gt lt LUT index 0 value 230 gt lt LUT index 1 value 57 gt lt LUT index 2 value 28 gt lt LUT index 254 value 72 gt lt LUT index 255 value 67 gt lt color gt lt color channel Green gt lt LUT index 0 value 208 gt lt LUT index 1 value 96 gt lt LUT index 2 value 253 gt lt LUT index 254 value 231 gt lt LUT index 255 value 42 gt lt color gt lt color channel Blue gt lt LUT index 0 value 206 gt lt LUT index 1 value 74 gt lt LUT index 2 value 146 gt lt LUT index 254 value 250 gt lt LUT index 255 value 182 gt lt color gt lt values gt lt xml version 1 0 encodi ng UTF 8 2 gt lt values gt lt color channel Greyscale gt lt LUT index 0 value 230 gt lt LUT index 1 value 57 gt lt LUT index 2 value 28 gt lt LUT index 254 value 72 gt lt LUT index 255 value 67 gt lt color gt lt values gt Figure 143 User defined XML file for 8 Bit RGB color left or monochrome right images Figure 143 shows an example of a properly formatted XM
81. Vsmartek vision User Manual Giganetix Camera Family GIG GEN lt I gt CAM www S MA RT E K vi S j on SMARTEK d o o 2015 information is subject to change without prior notice Version 2 4 0 from 2015 12 01 Qsmartek vision For customers in the U S A The equipment provided in an enclosure housing has been tested and found to comply with the limits for a Class A digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures e Reorient or relocate the receiving antenna e Increase the separation between the equipment and receiver e Connect the equipment into an outlet on a circuit different from that to which the receiver is connected e Consult the dealer or an experienced radio TV technician for help Modifications not expressly approved in this manual could void the user s authority to operate
82. a Giganetix GigE Vision c Neve a ercicr A Byatt os Sa ane ota BX eee ee Reset Enable Image Fip Rotate o tents saett aiiz Reset Image Size 1936 x 1456 Framerate Acquisition Display 15FPS 15FPS Position Cursor x Y 1208 1715 Pixel Value RGB Cursor 0 0 0 Data Transfer Rate 42 28 MBps Figure 170 Flip Rotate transformations in GigE VisionClient 209 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 7 Image Processing in GigEVisionSDK 7 3 Color Image Processing Pipeline In the previous chapters the image processing algorithms provided by the ImageProcAPI in of the GigEVisionSDK have been introduced Within user applications all image processing algorithms can be combined together in a non specific order The Image Processing Pipeline performs the baseline and provides the whole chain in a process optimized way improving the interaction of all algorithms and thus the overall performance It takes the raw data produced by a camera sensor and generates the digital image that will then undergo further processing is viewed by the user and or stored to a nonvolatile memory The preconfigured imaging pipeline supported by the ImageProcAPI is illustrated in Figure 171 Pandata White Gamma CEA Color Auto TA Output Balance Correction Correction Exposure Image Figure 171 Image Processing Pipeline The order of the algorithms in the color image pipeline pro
83. a is disabled then normal image is sent e ChunkSelector select chunk that will become active e ChunkEnable enable or disable active chunk mandatory chunks cannot be disabled When chunk mode is enabled and acquisition is started enabled chunks will be displayed in new tab that appeared under Image Processing Properties Figure 81 shows chunk data values tab Mono AE LUT Other Bx Chunk Promry T ChunkPixelFormat _ p gt ChunkWidth ChunkHeight be ChunkOffsets ChunkOffsetY ChunkLinePitch H ChunkGain ChunkExposureTime H ChunkCounterValue i ee ee ee Se i ChunkUserlntValue Monos 1936 1216 0 a 1936 0 00 rg mmi rir 70000 00 prie 3 83634 155 Figure 81 Chunk Data Values 98 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 3 Smartek GigEVisionSDK Library 3 6 4 1 Setting Chunk Data values UserlntValue can be set up through properties window shown in Figure 82 The value is included in Data Payload if UserlntValue chunk is enabled El UservalueControl UserIntYalue T Figure 82 Chunk Data Values Figure 83 shows CounterAndTimerControl CounterAndTimerControl I Counter ndTimerControl PA CounterSelector E CounterSelector Counter 1 CounterEventSource gt CounterEventSource FrameStart CounterValue Counter Value 0 Figure 83 Chunk Data Value
84. a list of the supported operating systems and the appropriate installation package Operating System 32 Bit 64 Bit SDK Package Windows XP Windows Vista Microsoft Windows 7 Windows Executable Windows 8 Windows 8 1 DEB based Debian Ubuntu Knoppix 32Bit deb 64Bit deb Linux nn Hn HH nn HN Hw RPM based Fedora Red Hat SUSE 32Bit rpm 64Bit rpm Table 44 Supported operating systems and installation packages 85 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 3 Smartek GigEVisionSDK Library 3 2 Un installing the GigEVisionSDK on Microsoft Windows and Linux QuickStart and Installation guides for Microsoft Windows and Linux operating systems can be downloaded separately from the SMARTEK Vision webpage www SMARTEKvision com downloads php The uninstallation on Microsoft Windows can be started by removing the software in Programs and Features in the Microsoft Windows Control Panel 3 3 Unattended Installation on Microsoft Windows Operating Systems In cases where the GigEVisionSDK needs to be included into user s own installer it is possible to install the package in silent mode This way it is possible to install the package without any graphical output and user interactions To run the installation silently execute the binary from the command prompt as Administrator with the following flags in one line SMARTEK_Vision_GigEVisionSDK_Vxxxx exe VERYSILENT SUPPRESSMSGBOXES
85. able the user can set his own user interface as default or save it to a file so that his own GUI arrangement can be loaded to the GigEVisionClient installed on other machines The GUI save and reset features are accessed through the menu bar or the toolbar as shown in Figure 70 Note The Floating Display feature allows the user to arrange different image displaying windows for each camera s video stream on the screen 90 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 3 Smartek GigEVisionSDK Library 3 6 2 Acquire Images from Camera s In this section a step by step guide will be introduced showing how the user can start the image acquisition from a camera using the SMARTEK Vision GigEVisionClient 3 6 2 1 Device Enumeration After the GigEVisionClient is started it automatically searches for GigE Vision compliant devices connected to the network All found devices are listed in the device list dialog If the required camera is attached or powered up subsequent and is not shown in the list the user can manually update the list and search for devices To search for devices within the network s the computer is connected to click the Find Devices icon in the Toolbar shown in Figure 71 GigEVisionClient File View Control Image Display Help OE EHA E E x Model MAC IP Address GC1621C S90 00 50 C2 70 8F 44 192 168 0 98 aj Figure 71 Find Devices icon If none of the connec
86. ace a color filter array CFA on top of the photosensitive cells to catch significant wavelengths individually by filtering off all others and use them to recalculate full color information for each pixel The Bayer color filter array is the most widely used filter array on image sensors which uses the complementary colors red green and blue The main advantage of this filter array is that only one image sensor is needed to separate color information of the light at one time In a Bayer filter array there are twice as many green as there are red or blue pixels the reason behind this is the higher sensitivity of the human eye for the color green Not All color cameras of the Giganetix family are equipped with area image sensors with Bayer pattern Bayer color filter array Image sensor A Se a SQ Figure 91 Bayer Color Filter Array placed on top of an area image sensor Figure 91 illustrates a Bayer color filter array placed on top of an area image sensor e Atared color filter position red light is fully transmitted green and blue light are reflected or absorbed by the filter e At a green color filter position green light is fully transmitted red and blue light are reflected or absorbed by the filter e And at a blue color filter position blue light is fully transmitted red and green light are reflected or absorbed by the filter 109 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision
87. ailerPackets UnknownPackets Type CMD Integer Integer Integer Integer Integer Integer Integer Integer Integer Integer Integer Integer Description Resets all current statistics Count of missing packets Count of resend requests Count of packets that were declared as lost Count of images that were declared as lost Count of packets that are ignored usually packets that are already analyzed or packets that do not belong to this stream Count of processed incomplete images Count of all received packets Count of all unknown devices Count of all leader packets that are processed Count of all payload packets that are processed Count of all trailer packets that are processed Count off all packets that have wrong packet format and were discarded Table 71 Packet Resent statistic parameters 141 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 5 1 1 2 Device Packet Statistics 5 Image Transmission over Gigabit Ethernet The Packet Resent statistics of the device camera can be accessed by the parameters described in Table 12 Parameter Type Description ResetAll CMD MissingPackets Integer PacketResendsAmount Integer LostPackets Integer Lostlmages Integer IgnoredPackets Integer Incompletelmages Integer Resets all current statistics Count of missing packets Count of resend requests Count of packets that were declared as lost Count of images that were declared as
88. anetix User Manual Version 2 4 0 Qsmartek vision 7 Image Processing in GigEVisionSDK Digital Gain in the GigEVisionClient In the GigEVisionClient the Digital Gain can be accessed in the Image Processing Properties panel under Color Mono shown in Figure 147 If not visible the panel can be enabled by the menu bar entry Control gt Image Processing Properties X GigEVisionClient GCP1941C 6C D1 46 00 01 6D 192 168 0 134 File View Control Displays Help W Find Devices S Set Ip To Device W Connect Device gt to Start j Parameters MNEOTE LS E a Visibdity Property Average Gamma Gain Offset Red 73 1 00 J 0 00 B Green 66 1 00 J 0 00 i Bue s6 1 00 0 00 B Inverse Gamma Load Values Save Values Image Size 1936 x 1456 Framerate Acquisition Display 15 FPS 15FPS Position Cursor X Y 149 53 Pixel Value RGB Cursor 57 56 52 Data Transfer Rate 42 28 MBps Figure 147 Digital Gain in GigEVisionClient i The Digital Gain is used to apply the White Balancing values to the image While the Note Auto White Balance option is enabled a manual configuration of digital gain is not possible 185 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 7 Image Processing in GigEVisionSDK 7 2 3 Auto Exposure and Auto Gain Cameras are often used in different environments and applications with changing conditions what also inclu
89. at maximum configured frame rate the TriggerMode properties for all TriggerSelector need to be set to Off 4 5 1 2 Acquisition Frame Rate The AcquisitionFrameRate property is a feature which limits the frequency at which images are captured by the camera Using the AcquisitionFrameRate feature it is possible to decrease the number of frames the camera acquires and transmits in free run mode which consequently lowers the Ethernet bandwidth needed by the camera This feature is useful in situations where the Ethernet bandwidth is limited like in applications where several cameras acquire images using one single Gigabit Ethernet link Setting the AcquisitionFrameRate property to zero effectively disables the feature allowing the camera to acquire and transfer images at maximum frame rate 129 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 4 Image Acquisition 4 5 2 Triggered Operation The trigger operation mode enables the user to precisely synchronize the camera with a further device or software application The AcquisitionStart command sets the sensor in stand by waiting for a trigger signal In contrary to the free run mode the sensor is already initialized when a trigger initiates the integration which is thus started with a minimum of latency Similar to the free run mode also the trigger mode allows several kinds of operation The selection of a trigger mode is done with the TriggerSelector property Each
90. ations can cause to permanent damage Further electrical specifications can be found in chapter 2 1 Mechanical and Electrical specifications 2 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 1 Description of Product Family 1 2 Supported Industry Standards 1 2 1 GigE Vision GigE Vision is a communication interface standard for high performance Gi A industrial cameras based on the Gigabit Ethernet technology The main idea ys ion driving the development of the standard is to unify different protocols used in machine vision industrial applications and make hardware and software from various vendors interoperate seamlessly over GigE connections GigE Vision is administered by the Automated Imaging Association AIA ON AUTOMATED IMAGING ASSOCIATION Features of the GigE Vision standard e Fast data transfer rates up to 1 Gbit s based on 1000BASE T e Data transfer length up to 100m exceeding maximum length of FireWire USB and Camera Link interfaces e Based on established standard allowing communication with other Ethernet devices and computers GigE Vision has four main elements e GigE Vision Control Protocol GVCP runs on the UDP protocol The standard defines how an application controls and configures devices and instantiates stream channels on the device It also defines the way for the device to notify an application about specific events e GigE Vision Stream Protocol GVSP covers
91. border Figure 158 HQ Linear algorithm border The ImageProcAPI therefore provides four approaches e leave border pixels as original RAW e cut off border pixels e fill border pixels with a solid color e interpolate border pixels with a specific demosaicing algorithm 196 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 7 Image Processing in GigEVisionSDK Demosaicing in GigEVisionSDK In the GigEVisionSDK the ImageProcAPI provides the programming interface for configuring and executing the demosaicing operations within user applications The bit depths and image types supported are shown in Table 95 For a detailed description on how to use the demosaicing feature please refer to the GigEVisionSDK API Help located in the doc folder of the GigEVisionSDK installation directory Supported bit depth Supported image input 8 bit per channel 16 bit per channel Monochrome Raw Bayer af V Color RGB Table 95 Demosaicing supported bit depth and image type Demosaicing in GigEVisionClient In the GigE VisionClient the demosaicing options can be accessed in the Image Processing Properties panel under Color shown in Figure 159 If not visible the panel can be enabled by the menu bar entry Control gt Image Processing Properties MB GigEVisionClient GCP1941C 6C D1 46 00 01 6D 192 168 0 134 on faecal File View Control Displays Help w sees Set Ip To Device V Connect Device W Disconnect Dev
92. by executing GigEVDrvinstall bat uninstalled by executing GigEVDrvUninstall bat 87 SMARTEK Vision Giganetix User Manual Version 2 4 0 VYsmartek vision 3 Smartek GigEVisionSDK Library 3 5 User Buffer By default memory for camera raw images is allocated by driver in kernel space User application can provide own allocated memory to be used instead User buffer example can be found in the API documentation located in the GigEVisionSDK installation folder 88 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 3 Smartek GigEVisionSDK Library 3 6 GigEVisionClient The GigEVisionClient is a Qt based open source application installed along with the GigEVisionSDK It utilizes and demonstrates the major function set available by the API in an intuitive graphical user interface and is capable of acquiring and controlling single or multiple GigE Vision compliant cameras After the installation of the GigEVisionSDK the GigEVisionClient can be started by the appropriate shortcut in the Microsoft Windows Start menu All Programs SMARTEK Vision The binaries can be found within the installation directory usually located at C Program Files SMARTEKvision GigEVisionSDK bin The source code is located at C Program Files SMARTEKvision GigEVisionSDK src GigEVisionClient 3 6 1 Graphical User Interface GUI Figure 69 shows the default GUI elements of the GigEVisionClient e Menu bar always on top of the applicati
93. cal load On usual area image sensors over a million pixels are arranged in a two dimensional array on which the light of a scene is projected through a lens Each pixel captures the photons of the light at a different point of the scene making it possible to detect the whole scene within a defined grid Hitting the sensor s active pixel array photons generate electrons which in turn create an electrical load in each pixel defining the intensity of each The amount of electrical load depends on the strength of the light and the time frame for which the pixels are exposed to light the so called Exposure or Integration Time 1 02 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 4 Image Acquisition Before the load of each pixel can be digitized it needs to be amplified by a Variable Gain Control VGC circuit according to the input characteristics of the Analog to Digital Converter ADC The amplification factor of this component can be controlled via the Analog Gain through the camera control interface By default the signal is amplified as strong as just needed to completely drive the ADC when the pixels reach their full well capacity Higher gain values will result in a cut off signal at high signal levels lower gain values will not amplify the signal enough to ever reach a saturated digital image even if the sensor reached its saturation To improve the signal quality and remove a possible dark noise from the image which
94. chine vision applications conforming to the industrial GigE Vision standard The compact housings fit almost every space critical application A wide selection of Sony Aptina and Truesense Imaging CCD and CMOS sensors delivers images with high sensitivity and low noise Excellent price to performance ratio makes this portfolio the perfect choice for every demanding user SMARTEK Vision Giganetix cameras combine standard Gigabit Ethernet technology with the GigEVisionSDK image acquisition software to reliably capture and transfer images from the camera to the PC All Giganetix cameras are supported by one Software Development Kit as well as a large number of 3rd party libraries compliant to the GigE Vision Standard To use these devices with other software than provided by SMARTEK Vision please check their user guides Ultra small compact form Sony Aptina and Truesense Imaging CCD and CMOS sensors Long cable length up to 100m Use of low cost Cat5e or Cat6 Ethernet cables Low power consumption low thermal dissipation Pixel depth of up to 14bit Very small trigger latency 2us jitter lt 0 5us Partial scan and region of interest functions High frame rates or high sensitivity option Black anodized aluminum housing Internal image buffer for retransmission and reliability packet resend mechanism Precise image sensor alignment Built in IR cut off filter in color models optional for monochrome models Standard C Mount lens adap
95. culations per pixel compared to the other algorithms It thus shows the lowest workload but is much more imprecise at e g structures and edges in the image Because of the small amount of calculations also the memory usage is negligible compared to HQ Linear Interpolation HQ Linear Interpolation The HQ Linear interpolation is a gradient corrected bilinear interpolated method using a 5x5 linear filter In contrast to the bilinear method the HQ Linear interpolation correlates different color channels to calculate the missing color value For example the red value of a non red pixel is computed as the average of the two or four adjacent red pixels depending on the amount of red pixels in the 5x5 neighborhood plus a correction value calculated from pixels of a different color channel 1 95 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 7 Image Processing in GigEVisionSDK In comparison with the bilinear interpolation the HQ Linear interpolation method has the modest increase in computational complexity However the main advantage of this method is that it generates significant higher quality color images with greatly reduced edge artifacts Therefore HQ Linear interpolation is in the GigEVisionSDK used as the standard demosaicing algorithm Pixel Group Interpolation Pixel Grouping is another interpolation method considering pixel values in a 5x5 neighborhood to calculate missing color values It basically works in t
96. d their different models including technical drawings Table 3 gives a brief overview about the unique characteristics of each series Type Short Description GC standard housing Standard Giganetix Camera GC S90 angled 90 housing Standard Giganetix Camera with 90 angled housing For applications with very limited space in optical axis and other mechanical restrictions making the standard housing unsuitable GC BL board level 90 Board level version of the standard Giganetix Camera with a single mainboard and detached sensor head Suitable for OEM and special solutions where a camera needs to be integrated into a closed device and or a housed camera does not fit into the design GCP standard housing Enhanced version of the Giganetix Camera in an adapted mechanical design providing a set of high end sensors and increased hardware capabilities as well as Power over Ethernet by default Table 3 Giganetix Family Camera Lines T SMARTEK Vision Giganetix User Manual Version 2 4 0 VYsmartek vision 2 SMARTEK Vision Giganetix Camera Models 2 1 Mechanical and Electrical Specifications 2 1 1 Giganetix with Standard Housing GC Series The Giganetix camera series with standard housing represents the regular camera design for the GC series with the main focus on a small form factor offering the comprehensive camera electronics in a small 35x35x48 mm footprint Figure 1 shows an image of the housing Table 4 contains an overvi
97. des the illumination situation which may vary and change constantly The exposure time determines how bright or dark an image will appear the longer the exposure the brighter the image and vice versa The automatic exposure feature of the ImageProcAPI will automatically adjust the exposure time of SMARTEK Vision cameras within defined limits until the specified target brightness is reached Increasing the exposure time means decreasing the maximum possible frame rate therefore in various applications where a specific minimum frame rate is required the exposure time may not be arbitrarily high In this situation the brightness can be further increased applying a digital gain The Auto Exposure feature in the ImageProcAPI provides therefore a property to limit the maximum allowed exposure time from which the gain will be increased instead Auto Exposure in the GigEVisionSDK In the GigEVisionSDK the ImageProcAPI provides the programming interface to set parameters and execute the auto exposure algorithm to determine the new exposure time and gain adjustment values The bit depth and image type supported are shown in Table 92 For a detailed description on how to use the auto exposure feature please refer to the GigE VisionSDK API Help located in the doc folder of the GigE VisionSDK installation directory Supported bit depth Supported image input 8 bit per channel 16 bit per channel Monochrome V V Raw Bayer L V Color RGB V V Table 92 Aut
98. describes the intensity of a color It defines how pale or strong a color appears and is the intensity of a Hue from gray At maximum saturation a color would contain no gray at all at minimum saturation a color would contain mostly gray In the HSL color wheel the saturation specifies the distance from the middle of the wheel in percent Lightness describes how bright or how dark a color appears It defines how much white or black is contained within a color Because of its characteristics of separating color and brightness information the HSL color space fits for various image processing functions such as convolution equalization histograms which mainly use the brightness information for calculation As a result computation performance may also increase due to performing calculation only on one channel Gimp HSL in the GigEVisionSDK In the GigEVisionSDK the ImageProcAPI provides the programming interface for configuring and executing Gimp HSL algorithm The bit depth and image type supported are shown in Table 98 For a detailed description on how to use this feature please refer to the GigEVisionSDK API Help located in the doc folder of the GigEVisionSDK installation directory Supported bit depth Supported image input 8 bit per channel 16 bit per channel Monochrome Raw Bayer Color RGB a Table 98 Gimp HSL supported bit depth and image type 201 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 7 Image
99. difications not expressly approved by the manufacturer could void the user s authority to operate the equipment under FCC rules Damir Dolar Dipl Ing Hardware Engineer Smartek d o o 81 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek 2 4 3 ROHS Il Manufacturer Product Type Family Type of Equipment vision 2 SMARTEK Vision Giganetix Camera Models Smartek d 0 0 Dobrise Cesarica 5 HR 40000 Cakovec Croatia Digital Gigabit Ethernet Camera Giganetix Standard Giganetix S90 Version Giganetix Board Level Giganetix Plus GC1281M GC2041C GC2591M GC2591C GC3851M GC3851C GC1932M GC1932C GC651M GC651C GC652M GC652C GC653M GC653C GC781M GC781C GC1031M GC1031C GO1391M GC1391C GO1392M GC1392C GO1621M GC1621C GC2441M GC2441C GO1021M GC1021C GO1291M GC1291C GC1601M GC1601C GO1921M GC1921C GCP1931M GCP1931C GCP2061M GCP2061C GCP2461M GCP2641C GCP1941M GCP1941C GCP2751M GCP2751C GCP3381M GCP3381C GCP4241M GCP4241C This equipment is in compliance with the essential requirements and other relevant provisions of the following RoHS II Directive 2011 65 EU Dm Dolor Damir Dolar Dipl Ing Hardware Engineer Smartek d o o 82 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 2 5 List of Supported Features Series Interface On Camera Features Continuous Streaming free run Triggered Operation single multi frame Expos
100. e 6 2 SMARTEK Vision Giganetix Camera Models 7 2 1 Mechanical and Electrical Specifications a aoao aoao a a a a 8 2 1 1 Giganetix with Standard Housing GC Series aoaaa 8 2 1 2 Giganetix with 90 Angled Housing GC S90 Series aoaaa aaa 10 2 1 3 Giganetix Board Level GC BL Series aoao a a a eee 12 2 1 4 Giganetix Plus Camera with Standard Housing GCP Series 17 2 2 Sensor Information and Technical Specification All Models Separate 19 2 2 1 C1281M 1 ee 19 Cee E E E gedaeateeenee eee ee eee eee ee eee ee eee ee es 21 2 2 3 GC2591M GC2591C 2 a 23 2 2 4 GC3851M GC3851C 2 ee 25 C20 GCIM GGI 4 4 6 6 6 6 6666 665466684668466 6446666 4666644 27 2 2 6 GC651M GC651C 1 a 29 2 2 7 GC652M GC652C 1 31 2 2 8 GC653M GC6538C 1 a 33 2 2 9 GC781M GC781C 2 ee 35 2 2 10 GC10381M GC1031C 1 ee 37 2 2 11 GO1291M GC1291C 2 ee 39 2 2 12 GCVBIIM Ts GC1391C oa oe sa ae ie amp Se Se OH Ge eH HOH HOH HH OH GH OH HOS OH HOH He HH H HS 41 CANO GC139eMs GEl e02C 444444 ee eee eG Ge He ee GHG HG HH eH GG HG 43 2 2 14 GC1621M GC1621C 1 ee 45 2 2 15 GC2441M GC2441C 1 ee ee 47 Pe lO OGIO IN GCI I 4445445444555 ee bee eee eee eee eee ee eee Gs 49 2 2 17 GC1601M GCIGUIC ccna b bd a DOS 51 Ce NO OCIO INM GC IO TO s o cea eee eee Ee ae 53 2 2 19 GCP1931M GCP1931C 2 ee 55 2 2 20 GCP2061M GCP2061C 2 a 57 2 2 21 GCP2461M GCP2461C 2
101. e Free Run operation where the camera streams images as fast as possible and the Triggered operation where the camera waits for a further signal by an external source to start the acquisition of a count of images 1 28 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 4 Image Acquisition 4 5 1 Free Run Operation In Free Run mode the camera starts the acquisition of images as soon as the AcquisitionStart command was received by the device Images are streamed with a by parameters fixed frequency which by default corresponds to the maximum of the camera By the Acquisition Modes it is furthermore possible to define how many images are acquired and streamed after receiving the AcquisitionStart command until the acquisition is stopped again 4 5 1 1 Acquisition Modes The AcquisitionMode property controls the acquisition mode of the device It defines the number of frames captured during the acquisition and the way the acquisition stops It can take any of the values shown in Table 61 Value Description Continuous Frames are captured continuously until stopped by the AcquisitionStop command SingleFrame The camera captures only one frame and stops the acquisition MultiFrame The camera captures a specific number of frames set by the AcquisitionFrameCount property and stops the acquisition Table 61 AcquisitionMode values In order for the camera to run in free run in which the camera acquires and transfers images
102. e light tungsten light tends to be reddish or reddish orange The higher the color temperature overcast sky the more blue light will outweigh the digital image appears more bluish To fully describe color casts in digital images a tint adjustment is also required While the color temperature determines the warmth or coolness of an image the tint defines the balance between magenta and green color casts Figure 150 shows two images of a color checker chart The image in the left shows the original values of the patches while the color checker on the right is captured by a camera at day light condition If we look at the last row of the color chart on the left image the Gray color fields tend to be green Figure 150 Comparison original color left and camera image right of a ColorChecker chart Human eyes can automatically correct this effect for a camera to compensate this effect automatic white balancing is needed to accurately balance color The white balancing feature implemented in the ImageProcAPI adjusts the weighting for each color channel using digital gains in order to remove the unwanted color casts 1 88 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 7 Image Processing in GigEVisionSDK Figure 151 demonstrates the White Balancing feature implemented in the GigEVisionSDK The green color cast is corrected the output image appears as it should Figure 151 ColorChecker chart without left and
103. e programming interface for converting the bit depth of an image The bit depths and image types supported are shown in Table 101 Supported bit depth Supported image input 8 bit per channel 16 bit per channel Monochrome V V Raw Bayer s V Color RGB V V Table 101 Bit depth conversion supported bit depth and image type For a detailed description on how to use this feature please refer to the GigEVisionSDK API Help located in the doc folder of the GigEVisionSDK installation directory Bit Depth Conversion in the GigEVisionClient The Bit Depth Conversion function is automatically applied to 16 bit per channel images to display them on the screen The inverse conversion from 8 bit to 16 bit is therefore not relevant in the GigEVisionClient 207 SMARTEK Vision Giganetix User Manual Version 2 4 0 VYsmartek vision 7 Image Processing in GigEVisionSDK 7 2 12 Flip Rotate Transformation The rotation performs a geometric transform which maps the position x y of a picture element in an input image onto a position x2 y2 in an output image by rotating it through a user specified angle 0 about an origin O When acquiring images from camera the orientation might not be correct Rotation flipping algorithm provides user with possibility to rotate or flip image Figure 168 demonstrates all flipping cases and Figure 169 demonstrates all rotation cases Original Image Vertically Flipped Image Horizontally Flipped Image Figure 168
104. e with a width of w and a height of h starts at the upper left corner and ends at the bottom right corner P 1 1 is the first pixel of the image P h w is the last pixel of the image column al row Figure 121 Image layout and transmission sequence The subsequent sections will describe all the supported formats for each pixel P in an image for monochrome cameras as well as color cameras 153 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 5 Image Transmission over Gigabit Ethernet 5 4 2 Supported Pixel Formats for Monochrome Cameras 5 4 2 1 Monosg In an image with the pixel format Mono8g each pixel value P is represented by one byte or 8 bits The Mono8 pixel format in SMARTEK Vision digital cameras is specified as shown below PixelFormat Mono8 Description 8 bit monochrome unsigned Pixel size 1 byte Value range 0 255 Table 74 Specification PixelFormat Mono8 The memory layout of the image with Mono pixel format is shown in Figure 122 Starting from the upper left of the image byte 0 represents the value of pixel P 1 1 byte 1 represents the value of pixel P 1 2 and so on In each byte the bitorder is by default little endian the least significant bit is assigned to bit 0 and the most significant bit to bit 7 P 1 1 P 1 2 ofe 7 Figure 122 Image layout with pixel format Mono8 5 4 2 2 Mono10Packed In an image with the pixel format Mono10Packed each two pixel values are
105. eValue value Info gt GetChunkNode gt ChunkCounterValue integer ents j ChunkCounterValue gt GetIntegerNodeValue value ChunkUserIntValue integer TEO AEA N Ness ChunkUserlIntValue gt GetIntegerNodeValue value Table 85 Access to chunks through API 1 64 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 5 Image Transmission over Gigabit Ethernet 5 5 2 Additional chunks 5 5 2 1 ChunkGain Gain chunk contains the Gain value of the image that is included in same payload To enable Gain chunk e use ChunkSelector to select GainChunk e set ChunkEnable to true 5 5 2 2 ChunkExposureTime ExposureTime chunk contains Exposure Time of the image that is included in the same payload To enable Exposure Time chunk e use ChunkSelector to select Exposure TimeChunk e set ChunkEnable to true 5 5 2 3 ChunkCounterValue Counter chunk can display values from different counter sources as e g the FrameCounter FrameCounter is a 32 bit value which starts at 0 and increments by 1 for each acquired frame image The maximum value of FrameCounter is 4294967295 after which it will reset to O again and continue counting FrameCounter can be set to any positive value from which it will continue counting The following code shows how to set CounterValue device gt SetIntegerNodeValue CounterValue value To enable CounterChunk e use ChunkSelector to select the appropriate counter chunk e set ChunkE
106. ed on each pixel to buffer the load of each while the sensor is read out As this reduces the photo sensitive area of each pixel the sensitivity of global shutter CMOS sensors tends to be smaller compared to electronic rolling shutter sensors This is usually compensated by a micro lens above each pixel which focuses the incoming light to the light sensitive surface 1 1 1 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 4 Image Acquisition 4 2 2 Electronic Rolling Shutter ERS Readout In contrast to the global shuttering rolling shutter sensors start the exposure of each line not at the same moment Each line is started to be exposed with an offset to the prior one the exposure time of each line is defined by the user and effectively the same for all of them The process is shown in Figure 94 with the Frame Start signal the exposure of line 1 is started As Electronic Rolling Shutter sensors are not able to store the load of pixels in a non photon sensitive area the exposure first ends with the individual pixel being read out As the read out of all lines takes place in serial the read out of each line is delayed by the prior ones to keep the duration of exposure for all lines equal the exposure start of each line is delayed about tReadrow to the prior line as well Beside some internal timing parameters and the read out frequency treadrow IS mainly affected by the image width The total time for frame read out
107. ed trigger latency stated in the camera s specification usually 2us to which the user defined TriggerDelay is added until the exposure is started 133 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 4 Image Acquisition Amplitude Unfiltered E f arriving signals Time Debo ncer aay ao Time Debouncer value Internal trigger signal Time Devour value Trigger latency fixed value vat Time Latency Trigger delay can be set to zero Delay Time Exposure lt ___ Time Exposure Figure 107 Partial process of image acquisition 134 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 4 Image Acquisition Line Debouncer The LineDebouncer property defines the minimum time interval that an input signal must remain active in order to be recognized as valid trigger The line debouncer is used to prevent possible unwanted trigger events as it eliminates short noises that could easily be interpreted as trigger signal The function of the trigger debouncer is shown in Figure 108 two glitches are ignored by the debouncer because the width of these signals is shorter than the debouncer time value The third signal is accepted as a valid trigger signal as its width is longer than the debouncer time limit The LineDebouncerTime feature is used to set the line debouncer time expressed in us The line debouncer time effectively increases delay time between
108. ee 59 22 22 GCPI94IM GCP1941C se 6 6 6 6 66 66646666466846 6644666644666 44 61 2 2 23 GCP2751M GCP2751C 1 rhhhh hhh bbhhh bhhta 63 2 2 24 GCP3381M GCP3381C 2 65 2 2 25 GCP4241M GCP4241C 1 ee 67 2 3 Physical Interfaces coc eaten eee etee eee ee etee nae eceeneennecae ean ea 69 2 3 1 Ethernet Interface 20 0 ce 69 2 3 2 Power and l O Interface 0 a 71 2 3 3 Temperature Specification and Heat Dissipation 02 77 2 064 Na GULPING 5 o 3 s amp amp a Be Se Ge Be Be Se Be Be Se Be Be Be Be Ge Ge Be Be Ge Be Se Ge Be Se Ge Be Se D Ge Be eH 79 2 3 5 Ingress Protection Class 0 0 a 79 2 4 Declarations of Conformity 2 0 ee 80 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision Table of Contents CAA Ge EEEE 80 Ce FCC eueeuee Geese eye SEES GCEY OSES ESE EEE ES YS Oe yee ey oo 81 eas ROHS sceeekhore etree err errr eer ee ere eee hee oe hore eer eee 82 2 5 List of Supported Features o oo a a a 83 3 Smartek GigEVisionSDK Library 85 3 1 Supported Operating Systems aooo aa a a e a 85 3 2 Un Installing the GigEVisionSDK on Microsoft Windows and Linux 86 3 3 Unattended Installation on Microsoft Windows Operating Systems 86 3 4 Manual Filter Driver Installation Uninstallation 2 2 200004 87 3 5 User Bulfef 2 ecen4c6 8455665485645 4656848688 ea oe EERE RRR ER EE ES 88 3 6 GigEVisionClient
109. egion where the transition threshold Occurs the logical state 5 41 4 to 42 2 VDC is not defined in this region Voltage level representing logical 1 gt 2 2 VDC Absolute maximum the camera may be damaged when the 30 0 VDC absolute maximum is exceeded The current draw for each input line 5to15 mA Table 39 Electrical specification for trigger input operational limits Camera Receptacle BF545C External Gnd Trigger line 1 Optional INPUT 1 Trigger 1 Gnd BF545C Trigger line 2 External Gnd Voltage MAX Gnd 30V DC Loo a o o o o o onono Figure 64 Trigger input scheme C l Exceeding the limits shown in Table 39 or reneging the wiring polarity shown in aution Figure 64 can seriously damage the device 75 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 2 SMARTEK Vision Giganetix Camera Models 2 3 2 4 Output Lines Electrical Specifications All cameras are equipped with two physical output lines designated as output line 1 and output line 2 The output lines are accessed via the power and I O interface receptacle Table 40 shows the operational limits of the trigger input lines Figure 65 shows their electrical scheme Each output line is opto isolated Description Limits The I O output may operate erratically lt 3 3 VDC Recommended operating voltage 3 3 to 24 VDC ram m if th Absolute maximum the came a ay be damaged if the 30 0 VD
110. eir specified temperature range configuration by the user is not necessary 1 06 SMARTEK Vision Giganetix User Manual Version 2 4 0 VYsmartek vision 4 Image Acquisition 4 1 3 CMOS Sensor Readout A CMOS sensor reads the accumulated charge of each cell in the image individually where it was already converted to a voltage There are several transistors at each pixel which do the conversion and make each pixel be addressable by the horizontal and vertical circuit using more traditional wires Because of the high demand for space by additional transistors on each pixel the light sensitivity of a CMOS chip tends to be lower as the photosensitive area shrinks with the amount of transistors Each pixel is read out and reset separately after each other On Global Shutter CMOS sensors the charge of each pixel is additionally buffered in a non photosensitive area of the pixel before while on Rolling Shutter sensors the charge is read out directly from the exposed pixel This postpones the moment of readout and thus shifts Electronic Rolling Shutter or extends Global Reset Release the duration of exposure from pixel to pixel and line to line Both architectures have their advantages and disadvantages while a Rolling Shutter has problems in motion scenes due to the fact that the lower lines of the images are later exposed than the top ones Global Shutter sensors show up additional noise and lower sensitivity due to their higher amount of trans
111. er ERS e Electronic Rolling Shutter with Global Reset Release GRR All three technologies show up very different characteristics which are described in the following chapter 4 2 1 Global Shutter Readout On global shutter sensors all lines of the image sensor are exposed at the same time for an equal amount of time to incoming light The start of exposure is defined by an incoming frame start signal e g a trigger the duration of exposure is adjusted by the user or applied by an external signal as well The procedure is shown in Figure 93 the pixel in all lines are reset and started being exposed at one time after the incoming Frame Start signal is received After the Exposure Time the charges of all pixel are simultaneously transferred into protected pixels on the sensor from where they are read out line by line The active array can usually already be exposed again while the protected pixels are still read out Frame Start Exposure Time Frame Readout Line 1 Line 2 Line 3 Line 4 Line 5 Line 6 Line 7 Line 8 Line N 1 Line N Frame Duration Exposure Readout Figure 93 Global Shutter Frame Readout Because of its characteristics to expose all lines over the same period of time Global Shutter sensors are preferred especially for moving scenes where no additional mechanical shutter or strobe illumination is used To establish a global shuttering on CMOS sensor technology further transistors need to be plac
112. er other devices on configurable events The physical interface is provided via the General Purpose Input and Output GPIO connector described in 2 3 2 Power and I O Interface Each physical line is configured separately and can be selected by the LineSelector property The property LineMode contains if the currently selected line is an Input or Output Table 66 describes all available configuration properties Property Type Description LineSelector Enumeration Select the line for configuration all further properties contain the values based on the selected line Values are e Linel e Line2 0o LineMode Enumeration Contains if the currently selected line is an Input or Output LineStatus Boolean Current status of the selected line LineSource Enumeration Source event driving the output line LineFormat Enumeration Internal electrical circuit of the line LineDebouncerTime Float Define the debouncer time of input lines in us Table 66 Trigger Sources 4 6 1 Input Lines The camera s input lines can be used to trigger an acquisition of the camera on external events The assignment of the physical input lines as a frame or acquisition trigger is described in Chapter 4 5 2 Triggered Operation Figure 107 shows the partial process of a complete image acquisition The incoming electrical signal of the external source is filtered by the LineDebouncer and raises the internal trigger signal if valid The internal circuit adds a fix
113. era series is identical to the standard GC camera fitted into a different form factor to enhance its flexibility It aims on very build up applications and all such with limited Space in sensor axis Due to its non symmetrical housing the GC S90 series supports image mirroring to reverse the image about its X and Y Axis to allow a most possible flexibility in positioning Figure 3 Giganetix Camera with 90 angled housing External dimensions 1 38 x 1 38 x 2 95 in Housing Black anodized aluminum case with 90 angled sensor and lens mount Weight Approx 120g approx 4 20Z Storage temperature 30 C to 60 C 22 F to 140 F Operating temperature 0 C to 50 C 32 F to 122 F Operating humidity 20 to 80 relative non condesing Storage humidity 20 to 80 relative non condesing Power requirement 10V to 24V DC via Power and O interface Lens mount C Mount Connectors Screw mount Ethernet RJ45 Communication and Data Circular Hirose 12 pin Power and O Interface Digital input 2 input channels opto isolated Digital output 2 output channels opto isolated Conformity CE FCC RoHS II GigE Vision GenlCam 1 measured at camera housing Table 5 Mechanical and electrical specifications 1 0 SMARTEK Vision Giganetix User Manual Version 2 4 0 VYsmartek vision 2 SMARTEK Vision Giganetix Camera Models 2 1 2 1 Technical Drawings Figure 4 Technical measures of angled 90 camera housing all dimensions are in
114. erty Info v Start E API Settings Parameters MARE terete A 0 Histogram Dia Visibility Gun Property DeviceControl eVendor Smartel image Proceming Properties Color AE Matrix GIMP Image Size 1936 x 1456 Framerate Acquisition Display 16 FPS 16FPS Position Cursor x Y 149 53 Pixel Value RGB Cursor 53 53 46 Data Transfer Rate 45 10 MBps Figure 148 Auto Exposure in GigEVisionClient 1 8 SMARTEK Vision Giganetix User Manual Version 2 4 0 Vsmartek vision 7 Image Processing in GigEVisionSDK 7 2 4 White Balance White Balancing is the process of removing unwanted color casts in digital images which derived from one important characteristic of visible light the color temperature The color temperature is defined by the radiation emitted by a glowing black body and is measured in Kelvin K Since an image sensor converts light to electrical voltage which then underruns multiple processing steps until a digital image is saved or displayed on the screen the color temperature of the light is visible on the digital image in form of color casts appearing to the human eye Figure 149 illustrates the color temperature spectrum of visible light in the range from 1000K to 15000K 1000K 3000K 5000K 7000K 9000K 11000K 13000K 15000K Figure 149 Color temperature spectrum in range 1000K to 15000K Digital images which are captured in lower color temperature conditions candl
115. es the number of timestamp ticks during 1 second 1 46 SMARTEK Vision Giganetix User Manual Version 2 4 0 VYsmartek vision 5 Image Transmission over Gigabit Ethernet 5 2 LAN IP Configuration To successfully establish the connection to a camera the Network configuration needs to be done according to the requirements of the application The connection of the physical Network Interface Card NIC needs to be enabled and set up properly Table 73 shows a good configuration for a first start with a single NIC but does not represent a set definition for all application and network environments NIC Cameras NIC others Camera 1 Camera 2 Camera 3 IP 169 254 0 1 not 169 254 x x 169 254 1 1 169 254 1 2 169 254 1 x Subnetmask 255 255 0 0 if 255 255 0 0 255 255 0 0 255 255 0 0 255 255 0 0 Table 73 Basic IP configuration of the PC To using several cameras on multiple Network Interface Cards NIC in one PC make i Note absolutely sure that each NIC is configured for a different network Otherwise it will not be possible to operate all cameras correctly IP Setup in Microsoft Windows On Microsoft Windows operating systems the IP can be set up by the following steps 1 Execute ncpa cpl e g via the command box of the Windows Startmenu or after pressing EY 4Ron your keyboard 2 Right click the target network interface card and choose Properties 3 Choose the Internet Protocol Version 4 TCP IPv4 entry in the list of protocols 4
116. essive Scan Exposure time 10us to 10s Max frame rate 8Bit in Hz 61 ADC bit depth 8 bit 14 bit Pixel data formats mono model Mono8g Mono16 Pixel data formats color model Mono8 Mono16 BayerGR8 BayerGR16 Synchronization Free run external and software trigger single shot multi shot Exposure control Freely programmable via GigE Vision interface Power consumption aux 12V 3 5W 3 5W 3 5W Power consumption PoE Not supported Not supported 4 2W Table 24 Model specific specification of GC 1601 51 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 2 SMARTEK Vision Giganetix Camera Models Relative Response 0 9 0 8 0 7 0 6 0 5 0 4 0 3 0 2 0 1 Relative response 350 450 550 650 750 850 950 1050 Wavelength nm Figure 41 Relative response of GC1601 Monochrome from sensor datasheet 0 9 0 8 0 7 0 6 0 5 0 4 0 3 0 2 0 1 Relative response 350 450 550 650 750 850 950 1050 Wavelength nm Figure 42 Relative response of GC1601 Color from sensor datasheet 52 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 2 SMARTEK Vision Giganetix Camera Models 2 2 18 GC1921M GC1921C GC GC S90 GC BL Image Sensor Truesense Imaging KAI 02150 Chromatics Monochrome Color Sensor type 2 Tap CCD Sensor resolution H x W 1920 x 1080 Optical size 2 3 Pixel size in um 5 0 X55 Analog gain in dB 5 1 to 41 8 Shutter Progressive Scan Exposure time 10us to 10s
117. et Gigabit Master Slave Mode Interupt Moderation Interrupt Moderation Rate Pv4 Checksum Offload Jumbo Packet Large Send Offload IPw4 Large Send Offload IPv4 Link Speed amp Duplex Link Speed Battery Saver Locally Administered Address Figure 120 Network interface card advanced driver settings Flow Control 152 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 5 Image Transmission over Gigabit Ethernet 5 4 Digital Image and Pixel Formats This section describes pixel and image layouts supported by SMARTEK Vision digital cameras While a pixel format describes how a single pixel data is constructed the image layout represents how the data are ordered in the memory of the captured device It is identical for all cameras 5 4 1 Image Layout Figure 121 shows the image layout valid for all SMARTEK Vision digital cameras An image transmitted out of a camera is considered to be a two dimensional array of pixels The pixels are stored in subsequent addresses in the memory of the capture device usually a PC Each pixel depending on its format is either 8 bits or 16 bits wide It is described by two indices the first index indicates the row while the second index indicates the column where the pixel is located e P x y means the pixel located at row x and at column y e P 1 1 means the pixel located at row 1 and at column 1 e P 1 2 means the pixel located at row 1 and at column 2 An imag
118. etix User Manual Version 2 4 0 Qsmartek vision 2 SMARTEK Vision Giganetix Camera Models Relative Response 1 0 0 9 0 8 o 0 7 0 6 0 5 0 4 ponse lative re R 0 2 0 1 0 0 400 500 600 700 800 900 1000 Wavelength nm Figure 55 Relative response of GCP3381 Monochrome from sensor datasheet 1 0 0 9 0 8 0 7 0 6 0 5 0 4 0 3 0 2 0 1 0 0 400 500 600 700 Relative response Wavelength nm Figure 56 Relative response of GCP3381 Color from sensor datasheet 66 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 2 SMARTEK Vision Giganetix Camera Models 2 2 25 GCP4241M GCP4241C GCP Image Sensor Sony ICX834 Chromatics Monochrome Color Sensor type 4 Tap CCD Sensor resolution H x W 4240 x 2824 Optical size leg Pixel size in um 3 1x 3 1 Analog gain in dB 12 to 24 Shutter Global Shutter Exposure time 10us to 10s Max frame rate 8 16Bit in Hz 9 4 ADC bit depth 8 bit 14 bit Pixel data formats mono model Mono8g Mono10Packed Mono12Packed Mono16 Pixel data formats color model Mono8 Mono16 BayerRG8 BayerRG16 Synchronization Free run external and software trigger single shot multi shot Exposure control Freely programmable via GigE Vision interface Power consumption aux 12V 4 7W Power consumption PoE 5 8W Table 32 Model specific specification of GCP4241 6 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 2 SMARTEK Vis
119. evice Info Registers Visibility Guru X Refresh a DeviceControl E ImageFormatControl AcquisitionControl Aco uisitionMode AcquisitionStart gt Use Start Stop AcquisitionStop l gt Use Start Stop AcquisitionFrame 1 AcquisitionFrame 0 00 AcquisitionFrame 0 00 AcquisitionStatus AcquisitionActive Acquisitionst False TriggerSselector AcquisitionStart TriggerMode Off a TriggerSoftware Not available ha Figure 76 Device Properties Starting a continuous stream A running acquisition can be quit by pressing the Stop button Multiple acquisitions can be started in parallel by choosing further cameras the output of the currently selected device is shown in the Image Display window 94 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 3 Smartek GigEVisionSDK Library 3 6 2 4 Multiple Devices Multiple Views The GigEVisionClient supports the operation of multiple devices that are detected and connected to the network in parallel The video stream of each device can be displayed in separated floating windows or grouped together in a Preview dialog Figure 77 demonstrates these possibilities with two connected cameras On the right the Preview dialog contains the video streams of the two cameras This dialog can be enabled through Control gt Preview in the menu bar The floating displays are accessible through the menu Displays in the menu bar
120. ew about the model specific specifications Figure 1 Giganetix Camera with Standard Housing External dimensions 1 38 x 1 38 x 1 89 in Housing Black anodized aluminum case Weight Approx 90g 3 20Z Storage temperature 30 C to 60 C 22 F to 140 F Operating temperature 0 C to 50 C 32 F to 122 F Operating humidity 20 to 80 relative non condesing Storage humidity 20 to 80 relative non condesing Power requirement 10V to 24V DC via Power and O interface Power over Ethernet PoE Lens mount C Mount Connectors Screw mount Ethernet RJ45 Communication and Data Circular Hirose 12 pin Power and O Interface Digital input 2 input channels opto isolated Digital output 2 output channels opto isolated Conformity CE FCC RoHS II GigE Vision GenlCam PoE IEEE802 3af 1 measured at camera housing Table 4 Mechanical and electrical specifications 8 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 2 SMARTEK Vision Giganetix Camera Models 2 1 1 1 Technical Drawings C Mount and image sensor optical center u e ee All models with PoE RJ45 jack is 180 rotated Figure 2 Technical measures of standard camera housing all dimensions are in mm inch 9 SMARTEK Vision Giganetix User Manual Version 2 4 0 VYsmartek vision 2 SMARTEK Vision Giganetix Camera Models 2 1 2 Giganetix with 90 Angled Housing GC S90 Series The 90 angled version of the Giganetix cam
121. exposure time and gain values the image captured by the camera can be underexposed too dark or overexposed too bright thus losing image details As described in previous chapters the image brightness can be adjusted by changing exposure time and gain values The SMARTEK Vision Giganetix camera series provides on camera automatic control of exposure time and gain thus automatically adjusting the values within defined limits until the specified target image brightness is reached The operation of the automatic exposure and automatic gain algorithms can be controlled via the properties ExposureAuto adjusting the exposure and GainAuto adjusting the gain of the camera Both have three operation modes listed in Table 52 Value Description Off Automatic mode is disabled exposure and gain can be set manually via the ExposureTime and Gain properties Once Automatic Exposure Gain is done once until the target gray value is reached the operation mode is then set to Off Continuous Automatic Exposure Gain algorithm is running continuously Table 52 ExposureAuto and GainAuto operation modes In case when both ExposureAuto and GainAuto are set to Continuous mode the automatic control algorithm always tries to achieve the smallest gain value to keep the noise level as low as possible Parameters that control Automatic Exposure and Automatic Gain features are listed in the following table Parameter Type Description TargetGray Value I
122. external trigger signal and internal trigger signal used to start the exposure so it should be set large enough to filter unwanted glitches that could trigger the camera but small enough to keep the delay as small as possible Amplitude Unfiltered arriving signals Time Debouncer Cc fT C Debouncer value Internal trigger signal PER l Delay mine Figure 108 Line debouncer function 135 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 4 Image Acquisition 4 6 2 Output Lines The physical output lines are usually used to synchronize the camera to external devices in situations where it makes sense that the camera is the master Usual use cases are for example the synchronization of external illuminations to the sensor exposure or to drive mechanical actuators by the software application A full list of possible events assignable by the LineSource property to each output line is shown in Table 67 Value Description UserOutput1 UserOutput2 Set to High Low by the software application with the UserOutputSelector UserOutputValue properties Acquisition TriggerWait High while the camera waits for a trigger for one or more frames AcquisitionActive High while camera acquires one or more frames Frame TriggerWait High while camera waits for frame trigger FrameActive High while camera captures a single frame Table 67 Trigger Sources While nearly all events available for the LineSource property are rai
123. for the transmission with low latencies is furthermore not able by default to handle packet loss packet collisions lead inevitably to a loss of image data To optimize the data transmission and add features like an optimized packet resend mechanism SMARTEK Vision provides its own GigE Vision filter driver The filter driver separates streaming video packets from the rest of network data already before the network stack of the operating system gets access to them and forwards them directly to the application It is designed to be compatible with the most network adapter cards and significantly lowers the CPU load needed to service the network traffic between the PC and the camera s 5 1 1 UDP Packet Resend Mechanism The Packet Resend mechanism is a driver feature that when enabled tries to regain packets that have been lost during transmission It checks the order of the incoming packets and detects if one or even a group of packets is missing in a stream Depending on the parameters settings the driver will then send one or several resend requests to the camera which resends the appropriate packets Table 69 shows the basic driver parameters available Parameter Type Description SetParameters ToDefault CMD Resets all parameters of the Packet Resend mechanism to the default values MaxImageSize Integer Maximum image size that the Packet Resend mechanism will handle EnablePacketResend Boolean Enables Disables the Packet Resend mechanis
124. g via the command box of the Windows Startmenu or after pressing EY Ron your keyboard 2 Right click the target network interface card and choose Properties 3 Press the Configure button below the name of the physical network interface shown in Figure 116 4 The settings of the driver can be accessed by choosing the Advanced tab of the opened window As shown in Figure 118 raise the value of the Receive Buffers property to its maximum value The following properties are available for this network adapter Click the property you want to change on the left and then select its value on the right Property Value Link Speed amp Duplex 2048 Link Speed Battery Saver Locally Administered Address Log Link State Event Priority amp VLAN Protocol ARP Offload Protocol NS Offload Receive Buffers Receive Side Scaling Receive Side Scaling Queues Reduce Speed On Power Down System Idle Power Saver TCP Checksum Offload IPw4 TCP Checksum Offload IPv6 Figure 118 Network interface card advanced driver settings Receive Buffers 1 50 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 5 Image Transmission over Gigabit Ethernet 5 3 4 Disable the Interrupt Moderation Rate To optimize the latency of the data transmission it is recommended to disable the Interrupt Moderation Rate feature of the network adapter This feature changes the way of interrupt generation by an incoming packet a
125. he Giganetix cameras the right choice of hardware is crucial as well as its configuration All following descriptions of driver settings are based on the Intel network driver interface on Microsoft Windows the availability of each feature and its limits can differ between hardware vendors and operating systems 5 3 1 Choosing the right Network Interface Card The first step is to choose the right network interface card NIC It is strongly recommended to use PCI Express based Gigabit Ethernet NICs supporting so called Jumbo Frames or Jumbo Packages NICs based on the old interface standard PC do often not provide enough guaranteed bandwidth due to the limited and shared bandwidth of the PCI bus However the PCI Express bus provides guaranteed enough bandwidth for Gigabit Ethernet Jumbo frames reduce the overhead and workload on the target PC reducing the amount of packets to be processed by sending a smaller count of larger packets instead of a high count of small packets A good choice are NICs with the Intel Pro 1000 chipset like the Intel Pro 1000 CT Desktop single port or PT Server Adapter multiport N Jumbo packets frames need to be supported by the NIC as well as the whole network ote chain including all network switches passed on the route 5 3 2 Using Jumbo Frames Packets As soon as Jumbo Frames Packets are supported by the network infrastructure it has to be made sure that this feature is enabled on each involved dev
126. he least significant bit is assigned to bit O of the first byte the most significant bit to bit 7 of the second byte P 1 1 P 1 2 Byte 0 Byte 1 Byte 2 Byte 3 LSB MSB LSB MSB el e Plesl 5 Figure 125 Image layout with pixel format Mono16 5 4 3 Supported Pixel Formats for Color Cameras 5 4 3 1 BayerGR8 BayerRG8 BayerGB8 BayerBG8 In an image with one of the Bayer8 pixel formats each pixel value P is represented by one byte or 8 bits The GR RG GB or BG notation describes the layout of the Bayer pattern on the image sensor used in the camera For detailed description about color imaging and the Bayer filter please refer to chapter 4 1 5 Color Imaging with Bayer Pattern The Bayer8 pixel formats in SMARTEK Vision digital cameras are specified like shown below PixelFormat BayerGR8 BayerRG8 BayerGB8 BayerBG8 Description 8 bit monochrome unsigned Pixel size 1 byte Value range 0255 Table 78 Specification PixelFormat Bayer8 The memory layout of the image with this pixel formats is shown in Figure 126 Starting from the upper left of the image byte 0 represents the value of pixel P 1 1 byte 1 represents the value of pixel P 1 2 and so on In each byte the bitorder is by default little endian the least significant bit is assigned to bit number 0 and the most significant bit is assigned to bit number 7 P 1 1 P 1 2 f ei Iam of r Figure 126 Image Layout with pixel forma
127. hm The bit depth and image types supported are shown in Table 94 For a detailed description on how to use the digital offset gain and gamma correction feature please refer to the GigEVisionSDK API Help located in the doc folder of the GigEVisionSDK installation directory Supported bit depth Supported image input 8 bit per channel 16 bit per channel Monochrome s V Raw Bayer V V Color RGB i V Table 94 Gamma Correction supported bit depth and image type 192 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision Gamma Correction in GigEVisionClient 7 Image Processing in GigEVisionSDK In the GigEVisionClient Gamma Gain and Offset can be accessed in the Image Processing Properties panel under Color Mono shown in Figure 154 If not visible the panel can be enabled by the menu bar entry Control gt Image Processing Properties aT File View Contrel Displays Help S Set Ip To Device E Connect Device __ t Disconnect Device oq Firmware Update _ Preview Devices Device Properties Device Property Info _ API Settings x Image Processing Properties F Histogram aa Giles DeviceControl DeviceVendor Dewnceltodelh METTE HQ Linear T Cak Reset Average Gamma Gain Offset Red 74 1 50 J 0 00 Green 65 1 00 i 0 00 we 3 A Load Values Save Values Image Size 1936 x 1456 Framerate Acquisition Display 15FPS 15FPS Position Cursor Yj 1
128. ice Devices like NICs have this feature usually disabled by default as well as some managed switches what makes it suggestive to throw a look into their configuration Network Interface Card NIC For NICs it is usually necessary to enable the Jumbo Frame Packet feature manually within the device driver On Microsoft Windows operating systems this can be accessed on the following way 1 Execute ncpa cpl e g via the command box of the Windows Startmenu or after pressing EY 4Ron your keyboard 2 Right click the target network interface card and choose Properties 3 Press the Configure button below the name of the physical network interface shown in Figure 116 Networking Connect using EF Intel R 82579LM Gigabit Network Connection A Figure 116 Access to network interface card driver settings 1 48 SMARTEK Vision Giganetix User Manual Version 2 4 0 Wsmartek vision 5 Image Transmission over Gigabit Ethernet 4 The settings of the driver can be accessed by choosing the Advanced tab of the opened window As shown in Figure 117 raise the value of the Jumbo Packet property to its maximum value Intel R 62579LM Gigabit Network Connection Properties The following properties are available for this network adapter Click the property you want to change on the left and then select its value on the right Property Value Enable PME a Energy Efficient Ethemet Fow Control Gigabit Master Slave Mode Interupt
129. ice Firmware Update _ Preview Model ccPi 633 O Start Parameters Property DeviceControl Image Processing Properties Color AE Matix GIMP LUT Other X Demosaic Colorized HQLinear v B near border v _ Gray White Balance Calc Reset Auto Average Gamma Gain Offset Red 74 1 00 B 1 50 I 0 00 Green 66 1 00 B 1 00 i ooo Bue s6 1 00 J 0 00 J Load Values Save Values Image Size 1936 x 1456 Framerate Acquisition Display 15FPS 15FPS Position Cursor X Y 155 125 Pixel Value RGB Cursor 71 67 60 Data Transfer Rate 42 28 MBps Figure 159 Demosaicing algorithms with border type selection 1 97 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 7 Image Processing in GigEVisionSDK 7 2 7 Matrix Multiplication 3x3 N by N matrices are commonly used to transform RGB colors scale them and control hue saturation and contrast The GigEVisionSDK provides a configurable 3 by 3 matrix for various applications modifying color images using matrix multiplication operations If the input image is in a non linear brightness space RGB colors must be transformed For these operations to be correct they must be operated on linear brightness values into a linear space before these matrix operations are used Figure 160 shows how the matrix multiplication is done where m are the matrix elements R G B are the input original values fo
130. ill be sent covering all connected packets 139 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 5 Image Transmission over Gigabit Ethernet Example 2 Figure 110 illustrates the packet resend mechanism with the following assumptions e Packet 1007 is missing within the stream of packets and has not been recovered e MaxResendPacketRetry is set to 2 e MaxMissingPacketWaiting is set to a value that expires before second resent request is sent 1 2 1 4 999 1000 1001 1002 1003 1004 1005 1006 1008 1009 1010 1011 1012 1013 1014 1015 1016 10 7 1018 1019 1020 i lt Da pa gt Time p Figure 110 Packet Resend Mechanism example MaxMissingPacketWaiting value has exceeded Additionally to the description in Example 2 the workflow of the Packet Resent mechanism would be enhanced by the following definitions 1 Interval defined by MaxMissingPacketWaiting parameter 2 As the MaxMissingPacketWaiting time has expired missing packet is considered as lost 140 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 5 1 1 1 API Statistics 5 Image Transmission over Gigabit Ethernet The Packet Resent statistics in the API can be accessed by the parameters described in Table 71 Parameter ResetAll MissingPackets PacketResendsAmount LostPackets Lostlmages IgnoredPackets Incompletelmages AllPackets UnknownDevice LeaderPackets PayloadPackets Tr
131. inuously adjusts the gain and black level of each tap The Automatic Tap Balance algorithm calculates the mean value of every n th pixel residing along both sides of each tap border Figure 100 shows this exemplarily on the basis of a 2 tap image where relevant pixels at a TbpVerticalStep of 5 are tagged in green Tap Border mE ex eal E E AT0muNEMA _ Se ce ne ea le peapa ea ha a es a TF ad FEEEEEE EEE EEE EEE EEE JQ E T Heey BE a E E E E FH an an CPA TES ee Sees f Dee Ie ee F 7 E BE r l Adjacent Pixels Figure 100 2 Tap Sensor Unbalanced Image left and Schematic of Adjacent Pixels The algorithm takes into account only pixels where the difference between adjacent pixels on different taps is less than TbpPixelDiff Treshold The resulting values on both taps are averaged over a count of frames defined in TbpFramesToAvg and compared if the difference between the taps is larger than TbpTapDiffTreshold or TbplapDifflresholdPercent the gain will be adjusted based on the size of the difference In this process also the difference in black level on both taps is calculated and corrected if bigger than Tbp TapDiffTresholdBL An overview of the parameters is shown in Table 54 and can be accessed via the camera properties by the GigE VisionClient or directly via the API 1 21 SMARTEK Vision Giganetix User Manual Ver
132. ion 1 Description of Product Family 1 2 3 C Mount A C Mount is a type of lens mount commonly found on 16mm movie cameras closed circuit television cameras CCTV trinocular microscope photo tubes and CCD CMOS digital cameras C Mount lenses provide a male thread which mates with a female thread on the camera The thread is nominally 25 4mm 1 in diameter with 32 threads per inch designated as 1 32 UN 2A in the ANSI B1 1 standard for unified screw threads The flange focal distance is 17 526mm 0 69 and thread length 3 8mm 0 15 1 3 EMI and ESD Consideration Excessive EMI and ESD can cause problems with your camera such as false triggering or can cause the camera to suddenly stop capturing images EMI and ESD can also have a negative impact on the quality of the image data transmitted by the camera To avoid problems with EMI and ESD you should follow these general guidelines e Use high quality shielded cables The use of high quality cables is one of the best defenses against EMI and ESD e Try to use camera cables with correct length and try to run the camera cables and power cables parallel to each other Avoid coiling camera cables e Avoid placing camera cables parallel to wires carrying high current switching voltages such as wires supplying stepper motors or electrical devices that employ switching technology e Attempt to connect all grounds to a single point e g use a single power outlet for the entire system a
133. ion Giganetix Camera Models Relative Response Relative response O O 400 500 600 700 800 900 1000 Wavelength nm Figure 57 Relative response of GCP4241 Monochrome from sensor datasheet Relative response 400 500 600 700 Wavelength nm Figure 58 Relative response of GCP4241 Color from sensor datasheet 68 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 2 SMARTEK Vision Giganetix Camera Models 2 3 Physical Interfaces All cameras are equipped with two physical interfaces a circular Hirose jack providing the camera s power and digital IO lines and a RJ45 jack for 100 1000Mbit s Ethernet communication Figure 59 shows the general connecting scheme Giganetix camera Ethernet cable GigE NIC 12V DC POWER Power and I O receptacle TRIGGER INPUT 2x DIGITAL OUTPUT 2x Figure 59 Connecting scheme 2 3 1 Ethernet Interface The Ethernet Interface provides configuration access to the camera and is also used for image data transmission The connector is a standardize RJ45 jack assigned like shown in Table 33 below Ethernet Connector Type RJ45 Ethernet 1000BaselT 802 3 compliant Pin no Signal Description 1 BI DA Bi directional pair A 2 BI_DA Bi directional pair A 3 BI DB Bi directional pair B 4 BI_DC Bi directional pair C 5 BI_DC Bi directional pair C 6 BI_DB Bi directional pair B 7 BI DD Bi directional pair D 8 BI_DD Bi directional pair
134. ion of pixels in the image the histogram table 3 gives more exact information about the count of specific intensities For the pixel value 80 there are exact 5774 pixels located in the image while other intensity levels are not even present like 1 and 2 oo ee 0 1 71 SMARTEK Vision Giganetix User Manual Version 2 4 0 HH 8000 7000 6000 Heas eaa 5000 4000 ENA SEE A SE n 3000 2000 1000 Pixel Count e 0 S a a a a A Histogram table Pixel value 80 7000 6000 Number of pixels with value 80 5774 aiii 4000 3000 SO O O O fl 2000 1000 50 100 Figure 133 Source image with histogram graph and table VWsmartek vision 7 Image Processing in GigEVisionSDK Histogram calculation can be applied to monochromatic or RGB image data The number of resulting histograms corresponds to the number of channels In the previous example there is only a single histogram for the monochrome image However on RGB color images are three histograms generated each represents a single color channel red green and blue illustrated in Figure 134 The application of histograms is varying on the basis of a histogram and depending on the scene the user can for example quickly determine whether the captured image is over under or normal exposed Figure 134 shows three color images with the corresponding histograms fo
135. ise correction and digitization circuits so that chip outputs are digital bits In a CCD sensor each pixel s charge is transferred through a very limited number of output nodes to be converted to voltage buffered and sent off chip as an analog signal This difference in readout techniques has major impact on sensor limitations and capabilities Eight properties describe sensor performance 1 Speed an attribute that favors CMOS over CCDs because most of the camera functions can be placed on the image sensor 2 Quantum Efficiency the ratio between output signal and unit of input light energy Rolling Shutter CMOS sensors caught up massively within the past years and offer a similar performance 3 Uniformity is the consistency of response for different pixels under identical illumination conditions CMOS were traditionally much worse than CCDs however new amplifiers have made the illuminated uniformity of some CMOS close to that of CCDs 4 Dynamic range the ratio of a pixel s saturation level to its signal threshold CCDs have the advantage here 5 Windowing CMOS technology has the ability to read out a portion of the image sensor allowing elevated frame rates for small regions of interest CCDs generally have limited abilities in windowing 6 Shuttering the ability to start and stop exposure arbitrary is superior in CCD devices CMOS devices require extra transistors in each pixel to provide uniform Global shutteri
136. ision Giganetix User Manual Version 2 4 0 Qsmartek vision 5 Image Transmission over Gigabit Ethernet 5 3 5 Disable the Flow Control To further optimize the latency of the data transmission shown in 5 3 4 Disable the Interrupt Moderation Rate it is possible to disable the so called Flow Control The Flow Control is a feature to adapt the transmission speed of the transmitter to the speed available at the receiver by sending PAUSE frames in between Not As deactivating this feature can cause in packet lost due to missing bandwidth it is ote generally not recommended to be disabled On Microsoft Windows operating systems the Flow Control can be accessed on the following way 1 Execute ncpa cpl e g via the command box of the Windows Startmenu or after pressing ET 4Ron your keyboard 2 Right click the target network interface card and choose Properties 3 Press the Configure button below the name of the physical network interface shown in Figure 116 4 The settings of the driver can be accessed by choosing the Advanced tab of the opened window As shown in Figure 120 set the value of the Interrupt Moderation Rate property to Disabled Intel R 82579LM Gigabit Network Connection Properties The following properties are available for this network adapter Click the property you want to change on the left and then select its value on the right Property Adaptive Inter Frame Spacing Enable PME Energy Efficient Ethem
137. istors per pixel In case of a Rolling Shutter the mentioned effect can be removed by using strong synchronized strobe illuminations or a mechanical shutter Camera Frontend Clock amp Timing Generation Oscillator Q0 fe D o 5 g O 3 G ep ep m O Y Y pie aa aa Column Amps FPGA Horizontal Scan Circuit Light sensitive pixel a Pixel to be transferred Figure 90 Giganetix Frontend with CMOS Active Pixel Sensor with integrated Gain and ADC As shown in Figure 90 on CMOS image sensors the image data is already amplified in the sensor s Column Amps and digitized by the ADC before leaving the image sensor Depending on the sensor type also additional processing can already take place within the sensor The output of the CMOS image sensors used is a digital signal which can directly be forwarded to the camera s FPGA The electronics in the camera s frontend are mainly dedicated to provide clean and separated supply powers for the sensor and its periphery and route the sensor control bus I C 1 07 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 4 Image Acquisition 4 1 4 CCD vs CMOS Sensor Performance Both CCD and CMOS technologies use the same principle they transform light into electric charge and convert it into electronic signals In a CMOS sensor each pixel has its own charge to voltage conversion and the sensor often also includes amplifiers no
138. ital Gain to brighten an image in Figure 146 As the multiplication takes place on the digitized image with the same In contrast to the analog gain the digital gain produces holes in the histogram shown bit depth as the output image some luminance levels cannot be reached anymore 1 83 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 7 Image Processing in GigEVisionSDK J 40 80 120 160 200 240 0 40 80 120 160 200 240 Intensity level Intensity level Figure 146 Digital Gain Histogram original image left and after applying digital gain of 4 0 right With a digital gain of 2 0 it is for example not possible to receive any uneven values 1 3 5 like sketched in Table 90 The analog gain is therefore always to be preferred where possible Pixel Pixeloy Pixel x 2 0 Table 90 Digital Gain Output values Digital Gain in GigEVisionSDK In the GigEVisionSDK the ImageProcAPI provides the programming interface to apply digital gain to images The bit depths and image types supported are shown in Table 91 For a detailed description on how to use the digital gain feature please refer to the GigEVisionSDK API Help located in the doc folder of the GigE VisionSDK installation directory Supported bit depth Supported image input 8 bit per channel 16 bit per channel Monochrome i V Raw Bayer oA V Color RGB vA V Table 91 Digital Gain supported bit depth and image type 184 SMARTEK Vision Gig
139. ity aluminum Aluminum well mounted Camera is well mounted on a construction profile 150x70x30 mm of a material with a very good heat conductivity aluminum Table 41 Description of the curves in Figure 66 11 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 2 SMARTEK Vision Giganetix Camera Models In each setup the camera and its heat conductor are exposed to the environment temperature of 22 5 C until all match 1 As soon as the camera is powered 2 it starts to heat immediately 3 and reaches its maximum after around one hour 4 The difference in temperature between the sample setups is significantly the camera which is not mounted to any heat conductor after one hour in an environmental temperature of 22 5 C have camera temperature at 50 4 C With a small aluminum heat conductor the camera temperature drops about 12 to 15 C Heat Up Graphs GC1921C 55 4 50 45 O Cc 40 2 gt v 35 Q 3 O 30 Not mounted 25 Aluminum loose Aluminum well mounted 1 2 l 20 0 500 1000 1500 2000 2500 3000 3500 Time in s Figure 66 Example of heat up behavior of a camera with different thermal connections 18 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 2 SMARTEK Vision Giganetix Camera Models 2 3 4 IR Cut Filter The spectral sensitivity of the CCD CMOS image sensors extends into the near infrared range what can result in fo
140. ization Free run external and software trigger single shot multi shot Exposure control Freely programmable via GigE Vision interface Power consumption aux 12V 3 6W Power consumption PoE 4 6W Table 28 Model specific specification of GCP2461 59 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 2 SMARTEK Vision Giganetix Camera Models Relative Response 1 0 0 9 0 8 0 6 0 5 0 3 0 2 Relative response 0 0 400 500 600 700 800 900 1000 Wavelength nm Figure 49 Relative response of GCP2461 Monochrome from sensor datasheet 1 0 0 8 0 7 0 5 0 4 0 3 Relative response 0 1 0 0 400 500 600 700 800 900 1000 Wavelength nm Figure 50 Relative response of GCP2461 Color from sensor datasheet 60 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 2 SMARTEK Vision Giganetix Camera Models 2 2 22 GCP1941M GCP1941C GCP Image Sensor Sony ICX674 Chromatics Monochrome Color Sensor type 4 Tap CCD Sensor resolution H x W 1936 x 1456 Optical size 2 3 Pixel size in um 4 54 x 4 54 Analog gain in dB 12 to 24 Shutter Global Shutter Exposure time 10us to 10s Max frame rate 8 16Bit in Hz 36 17 ADC bit depth 8 bit 14 bit Pixel data formats mono model Mono8g Mono10Packed Mono12Packed Mono16 Pixel data formats color model Mono8 Mono16 BayerRG8 BayerRG16 Synchronization Free run external and software trigger single shot multi shot
141. ket 1007 is missing within the stream of packets and has not been recovered e MaxResendPacketRetry parameter is set to 2 1 2 4 6 8 999 1000 1001 1002 1003 1004 1005 1006 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 lt lt pa pa gt gua 3 5 7 Figure 109 Packet Resend example when MaxResendPacketRetry value has exceeded Corresponding to Figure 109 the workflow of the Packet Resent mechanism would look like described below 1 Stream of packets Gray indicates packets that have been checked by the driver white packets have not yet been checked 2 As packet 1008 is received packet 1007 is detected as missing 3 Interval defined by the PacketResendTimeout parameter 4 The PacketResendTimeout is expired the first resend request for packet 1007 is sent to the camera The camera does not respond with a resend 5 Interval defined by the PacketResendResponseTimeout parameter 6 The PacketResendResponseTimeout expires and second resend request for packet 1007 is sent to the camera The camera does not respond with a resend 7 Interval defined by the PacketResendResponse Timeout parameter 8 As the maximum number of resend requests has been sent MaxResendPacketHetry and the last PacketResendResponse Timeout has expired packet 1007 is now considered as lost lf a group of packets is missing for example 1000 1001 1002 and 1003 only one resend request w
142. ket Gi Device Properti C Device P a L API Settings Parameters E g Tale i a DeviceVendor Smarteh DeviceModelN GCP DeviceManufa Giganetix GigE Vision c j om f Neve a ercicr Hiii A E t image Processing Properties Color AE Matrix GIMP X Demosaic Colorized HQ Linear Bilinear border White Balance Cak Reset Average Gamma Gain Offset Red 0 nog 1 50 9 0 00 0 1 00 J 3 00 9 bom we o LR Cool ooo my Load Values Save Values Image Size 1936 x 1456 Framerate Acquisition Display 15 FPS 15FPS Position Cursor x Y 1208 1715 Pixel Value RGB Cursor 0 0 0 Data Transfer Rate 42 28 MBps Figure 167 RGB to Gray conversion in GigEVisionClient 206 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 7 Image Processing in GigEVisionSDK 7 2 11 Bit Depth Conversion The bit depth of a pixel describes the resolution with which the luminance information is handled As usual display devices only support 8 bit per channel the Bit Depth Conversion algorithm there allows the conversion from 16 bit down to 8 bit and vice versa Converting images from a higher bit depth to a lower one will lead to reduction of the image size Please keep in mind that this conversion causes information loss which cannot be recovered by the back conversion to a higher bit depth Bit Depth Conversion in the GigEVisionSDK In the GigEVisionSDK the ImageProcAPI provides th
143. ket n Delay Packet 2 Each camera has dedicated time slot Packet 1 Packet 1 camera Delay Packet 2 Delay Figure 112 Packet flow while using inter packet delay 143 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 5 Image Transmission over Gigabit Ethernet Setting Inter Packet Delay The cameras provide the features GevSCPSPacketSize and GevSCPD GevSCPD represents the Inter Packet Delay and is expressed in microseconds Its value can range from 0 to 1000us and should be set according to number of cameras connected to a certain network interface card and GevSCPSPacketSize The GevSCPSPacketSize feature represents the size of packets and is expressed in bytes the default camera packet size is at 1500 bytes but can be larger if the network hardware supports Jumbo Frames Assuming that the GevSCPSPacketSize is 1500 bytes effective Ethernet packet size including inter frame gap preamble header and CRC on the wire is 1538 bytes maximum of 81274 packets are sent every second via the Ethernet interface It takes 8ns to transfer one byte over Gigabit Ethernet network so time required to transfer one packet of 1538 bytes is 12 3us The GevSCPD should be a bit longer than the time required to transfer one packet in order to ensure that packets from second camera will fit in the vacant time slot On the other hand if the camera is producing 60000 packets per second 50 frames per second 1200 packets per frame
144. l code examples for reference available in all supported progra mming languages All examples are located in the corresponding folder of the GigEVisionSDK installation directory For a more detailed description on the parameters of each algorithm or on how to apply them please refer to the GigEVisionSDK API help located at the doc folder of the GigEVisionSDK installation directory 170 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 7 Image Processing in GigEVisionSDK 7 1 Image Statistics 7 1 1 Histogram A histogram is a graphical representation of the distribution of all intensity values that can be found in an image The histogram graph is plotted using the Cartesian coordinate system The x coordinates are in a range from O to 2 1 where n is the bit depth of a pixel value Each x coordinate can correspond to an intensity value that exists in the image The y coordinates are in a range from O to image_width x image_height describing the total numbers of pixels for each pixel value found in the image Figure 133 illustrates a histogram of an 8 bit monochrome image 1 e The horizontal x axis of the graph 2 contains the intensity values with a range from 0 to 2 1 or 0 to 255 The vertical y axis shows the count of pixels with the corresponding intensity There are 5774 pixels that have the value 80 in the image 1 for example e While the graph 2 allows a quick visual interpretation of the distribut
145. l of the camera Both have three operation modes listed in Table 55 Value Description Off Tap balancing is disabled taps can be balanced manually via the gain and black level properties after choosing the target tap Once Balancing of taps is done once until both taps are matched the algorithm is then set to Off Continuous Tap balancing algorithm is running continuously default Table 55 Parameters for GainAutoBalance and BlackLevelAutoBalance 122 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 4 Image Acquisition 4 3 5 Digital Shift The DigitalShift property is part of the camera s analog controls and allows a data selection from the full bit depth of the sensor 14 Bit to 8 Bit As shown in Figure 101 all cameras by default use the 8 Most Significant Bits MSB of the 14 Bit Analog to Digital Converter ADC to create 8 Bit pixels the Least Significant Bits LSB are cut off Analog to Digital Converter Output Bits 0 13 END S Output Data 8Bit Figure 101 Digital Bit Shifting at Analog to Digital Converter The DigitalShift property of the camera allows to shift the selected bits into the direction of the LSBs As e g by default bits 6 to 13 are used a DigitalShift value of 1 outputs bits 5 to 12 from the ADC Table 56 shows the ADC bits outputted at each DigitalShift value DigitalShift Value Bits at ADC 0 default 6 to 13 1 9 to 12 2 4to 11 3 3 to
146. lication will run a compatibility test between the device and firmware If the selected firmware is compatible to the selected camera the shown text is tagged as PASSED and the Upload new firmware to device button will become available 3 Flash Firmware To upload and flash the firmware to the target camera press the Upload new firmware to device button 4 Successful Update In the last step of the firmware update the camera is restarted by the application If this step was executed successfully the update window can be closed and the camera is ready to be operated with the new firmware 100 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 3 Smartek GigEVisionSDK Library 1 Select firmware location 3 Flashing device Loo Upoadnewfmwareto device Status RERARAARARA AER ERAER ARERR REAR RRR VENDOR_NAME Smartek MODEL_NAME GC651C APPLICATION FIRMWARE_VERSION 1 6 6 0 BUILD_DATE 12 03 2013 MIN_HARDWARE_VERSION 1 0 MAX_HARDWARE_VERSION 1 9 FORMAT_VERSION 1 2 NUM_OF_CHUNKS 3 CHUNK_1_DESC HARDWARE CHUNK_1_SIZE 397456 CHUNK_1_OFFS 0x00200000 CHUNK_2_DESC SOFTWARE CHUNK_2_SIZE 757908 CHUNK_2_OFFS 0x00300000 CHUNK_3_DESC GENICAM_XML CHUNK_3_SIZE 16869 CHUNK_3_OFFS 0x002C0000 2 Compatibility check Programming file is compatible with selected device Programming is enabled PASSED passed Update mode set OK Update header checked OK Update header
147. llation directory Supported bit depth Supported image input 8 bit per channel 16 bit per channel Monochrome ye V Raw Bayer Color RGB i V Table 99 Sharpening supported bit depth and image type Sharpening in the GigEVisionClient In the GigEVisionClient the Image Sharpen options can be accessed in the Image Processing Properties panel under Other shown in Figure 165 If not visible the panel can be enabled by the menu bar entry Control Image Processing Properties Md GigEVisionClient GCP1941C 6C D1 46 00 01 6D 192 168 0134 a lo me DeviceManufa Giganetix GigE Vision c 2 Image Processing Properpes gx Color AE Matix GIMP LUT Other Reset CERO Image Size 1936 x 1456 Framerate Acquisition Display I5FPS 15FPS Position Cursor X Y 36 494 Pixel Value RGB Cursor 0 0 0 Data Transfer Rate 42 28 MBps Figure 165 Sharpening in the GigEVisionClient e Enable Activate deactivate the image sharpening feature e Reset Sets the sharpen factor to the default value 204 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 7 Image Processing in GigEVisionSDK 7 2 10 RGB to Grayscale Conversion Color images often have to be converted to grayscale providing input data for subsequent digital image processing like edge detection filters OCR etc The RGB to grayscale conversion performs a reduction of the RGB color data into a single
148. lost Count of packets that are ignored usually packets that are already analyzed or packets that do not belong to this stream Count of processed incomplete images Table 72 Packet Resent statistic parameters 142 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 5 Image Transmission over Gigabit Ethernet 5 1 2 Inter Packet Delay The Inter Packet Delay is usually applied when multiple cameras are connected to one PC over the same Network Interface Card NIC It enables the user to create a pause between consecutive packets which reduces the amount of effective load and creates timeslots for packets from other devices on the connection Packets sending flow Packets receiving flow Camera 1 Packet n Packet 3 Packet 2 Packet Packet Gamera 2 Packet n Packet 3 Packet 2 A Collision Figure 111 Packet flow while not using inter packet delay lf the Inter Packed Delay is not used excessive collision between packets may occur which results in data loss like illustrated in Figure 111 Packets from two cameras are sent to PC over the same network connection Without any Inter Packet Delay set collision between packets from different cameras may occur in case of insufficient bandwidth Figure 112 illustrates a well configured Inter Packet Delay to prevent collisions Packets sending flow Packets receiving flow Camera 1 Pac
149. lowing a couple of application examples using look up tables are shown The first example shows a look up table where each output pixel value is mapped to its exactly corresponding input pixel value The look up table is a linear function f x x and its graph is a 45 straight line shown in Figure 138 Because of the one to one value mapping the output image is identical to the input image 177 SMARTEK Vision Giganetix User Manual Version 2 4 0 VYsmartek vision C a a a a a a a O E O E E S E E 7 ee ca eae ae eas a tae eae aks a ges a as ee fib EEE SEE E E Gare Peete cee E A O E E S E BEA EEEE ETET EE ETES ETE o 135 za w J E ae ee Se E E S _ 105 Hoteecteecieeeie iepen 4 re eee ae ee ee ae wm L _ 60 H Ge E EE ne fons ETE T T E SE ES E tne E T 4 BO fennel bg 126 60 75 90 105 120 135 150 165 180 195 210 225 240 255 index 1 27 f J 128 13 F i pal Ji l 10 H 7 al 1 I 7 J 253 ou J a 254 Al J lat J i i i i l l 255 01234567 8 9 011 1213 14 15 See ee a a index value A ES T E e ag E S E E ony ee ee 405 Laue EE tases selec eel EE aged E TE oe E teases ABU E T dag Ul ons EE EEE Sean ae Eh wa cd age O OEE G E hated tae 126 127 128 253 254 255 Image Processing in GigEVisionSDK ai Input Image Output Image Figure 138 Linear transformation using 8 bit look up table The second exa
150. m AcceptIncompletelmage Boolean Enables Disables the acceptance of images where payload packets are missing LineFormat Enumeration Internal electrical circuit of the line Table 69 Packet Resend Parameters 1 2 Table 70 lists further parameters allowing a detailed configuration of the Packet Resent mechanism All this parameters mainly affect the performance and the robustness of the packet resending changes should only be done carefully 137 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision Parameter PacketResendTimeout PacketResendResponse Timeout MaxResendPacketRetry MaxMissingPacketWaiting MaxNextPacketWaiting MaxMissingPacketsCount MaxNewlmagesPending MaxNewPacketsPending MaxIncompletePackets Type Integer Integer Integer Integer Integer Integer Integer Integer Integer 5 Image Transmission over Gigabit Ethernet Description The elapsed time in ms before the first resend request for a missing packet is sent to the camera The default value is 0 ms meaning the request for a missing packet will be sent instantly This parameter applies only once to each missing packet after the packet was detected as missing Represents how long ms the Packet Resend Mechanism will wait for response after sending a resend request until another resend request is sent Represents the maximum number of resend requests sent for a missing packet Maximum time in ms the mi
151. m the datasheet of the sensor manufacturer 2 2 1 GC1281M GC GC S90 GC BL Image Sensor Aptina MT9M001 Chromatics Monochrome Sensor type CMOS Sensor resolution H x W 1280 x 1024 Optical size 1 2 Pixel size in um 5 2 X 5 2 Analog gain in dB 0 to 23 5 Shutter Rolling Exposure time 32us to 0 5s Max frame rate 8Bit in Hz 30 ADC bit depth 8 bit Pixel data formats Mono8 Synchronization Free run external and software trigger single shot multi shot Exposure control Freely programmable via GigE Vision interface Power consumption aux 12V 2 3W 2 3W 2 3W Power consumption PoE 3 0W Not supported 3 0W Table 8 Model specific specification of GC1281M 1 9 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 2 SMARTEK Vision Giganetix Camera Models Relative Response 1 0 9 0 8 0 7 0 6 0 5 0 4 0 3 0 2 0 1 0 350 450 550 650 750 850 950 1050 Relative response Wavelength nm Figure 11 Relative response of GC1281 Monochrome from sensor datasheet 20 SMARTEK Vision Giganetix User Manual Version 2 4 0 VYsmartek vision 2 SMARTEK Vision Giganetix Camera Models 2 2 2 GC2041C GC GC S90 GC BL Image Sensor Aptina MT9T031 Chromatics Color Sensor type CMOS Sensor resolution H x W 2048 x 1536 Optical size 1 2 Pixel size in um 3 2 x 3 2 Analog gain in dB 0 to 23 5 Shutter Rolling Exposure time 53us to 10s Max frame rate 8Bit in Hz 12 ADC bit depth 8 bit Pixel data f
152. man eye shown in Figure 156 194 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 7 Image Processing in GigEVisionSDK Figure 156 Raw image overlaid with a Bayer pattern Figure 156 shows a raw image from a color camera If it is zoomed into the image the Bayer pattern gets more and more visible Each pixel represents an intensity value to reconstruct a full color image from the incomplete color samples the missing color information at each pixel has to be interpolated The interpolation process has several different names like Color Filter Array Interpolation Demosaicing or Debayering The reconstructed image is typically accurate in uniform colored areas but has a loss of resolution especially at structures and edges There are different interpolation methods where each of them has its own strengths and weaknesses In the ImageProcAPI three algorithms are implemented namely Bilinear Interpolation High Quality Linear Interpolation and Pixel Group Interpolation Bilinear Interpolation The Bilinear Interpolation is a linear demosaicing method using a 3 by 3 filter for color interpolation For each pixel its 8 direct neighbors are considered to determine the 2 missing colors of this pixel by simple averaging The red value of a non red pixel is computed as the average of the two or four adjacent red pixels and similarly for blue and green The bilinear method has the lowest complexity as there are only a few cal
153. martek vision 2 SMARTEK Vision Giganetix Camera Models 2 3 2 2 10 pin Molex Picoblade Connector The board level Giganetix cameras GC BL are equipped with a 10 pin Molex Picoblade receptacle to provide access to the power interface as well as the input and output lines Figure 52 shows the pin and connector orientation on the back of the camera housing Table 38 shows the corresponding pin assignment Figure 63 10 pin Molex Picoblade receptacle Pin and connector orientation Pin no Signal l DC power supply Power GND Output 2 Output 2 Output 1 Output 1 Input 1 Input 1 oO O N O A A W N Input 2 Input 2 O Table 38 12 pin circular Hirose receptacle Pin assignment The 10 pin connector on the camera mainboard is a Molex Picoblade 53398 1071 with Note 10 pins 14 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 2 SMARTEK Vision Giganetix Camera Models 2 3 2 3 Input Lines Electrical Specifications All cameras are equipped with two physical input lines designated as input line 1 and input line 2 The input lines are accessed via the power and I O interface receptacle on the back of the camera Each input line is opto isolated Table 39 shows the operational limits of the trigger input lines while Figure 64 shows their electrical scheme Description Limits Recommended operating voltage 0 to 24 VDC Voltage level representing logical 0 0 to 1 4 VDC R
154. martek vision 2 SMARTEK Vision Giganetix Camera Models Pin no Signal Power GND o_o DC power supply Output 1 Output 1 Input 2 Input 2 Input 1 Input 1 oO fo N O OA A W N Output 2 O Output 2 h o_o Input 1 NO Input 1 Table 37 12 pin circular Hirose receptacle Pin assignment N The 12 pin connector on the camera is a Hirose receptacle and can be used with a ote HR10A 10P 12S or equivalent C Only cameras with PoE provide a polarity protection on the power input circuit aution voltage reversal on models without PoE will damage the camera 172 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 2 SMARTEK Vision Giganetix Camera Models Cabling Requirements A single 12 pin Hirose receptacle is used to power the camera and provide access to its input and output lines When assembling the 12 pin Hirose connector on one side of the cable care must be taken to follow the pin arrangement shown in Table 37 determining pin 1 from the supplied drawing is critical It is recommended to use a shielded twisted pair cable to avoid EMI the maximum length should not exceed 10m Figure 62 Hirose 12 pin plug connector N The 12 pin connector for the cable is a Hirose plug HR10A 10P 12S 73 or ote equivalent A Caution An incorrect pin alignment or connector can damage the camera 13 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWs
155. mple demonstrates a variant of gamma correction using a look up table By reference to the look up table and its corresponding graph in Figure 139 it is visible that a non linear transformation is applied to the input pixel values as e a a tn a 126 127 128 253 254 255 a a ea a Watkin nyc dex value 185 185 186 254 254 255 Output Image Figure 139 Gamma correction using look up table 178 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 7 Image Processing in GigEVisionSDK The third example illustrated in Figure 140 shows the inverting of an 8 bit monochrome image by a LUT Every input gray level value is transformed into an output gray level value by the formula Value out 2 Valuein 255 eoi bode EEN DE value N o T T T T 0 l l l l l l l l l l l 15 30 45 60 75 90 105 120 135 150 165 180 195 210 225 240 255 index Figure 140 Inverting a monochrome image using look up table The last example demonstrates two implementations of contrast enhancement using a look up table applied to an 8 bit per channel color image In Figure 141 the first 45 pixel values have been set to 0 and pixel values in range from 173 to 255 have been set to 255 index value value Input Image wo a T T T T T T T T 0
156. n GenlCam provides supports for five basic functions e Configuring the camera supports a range of camera features such as frame size acquisition speed pixel format gain image offset etc e Grabbing images creates access channels between the camera and the user interface and initiates receiving images e Graphical user interface enables user GUI interface to seamlessly talk to the camera s e Transmitting extra data enables cameras to send extra data on top of the image data Typical examples could be histogram information time stamp area of interest in the frame etc e Delivering events enables cameras to talk to the application through an event channel Standard Features Naming Convention SFNC SFNC provides the definitions of standard use cases and standard features The goal is to cover and to standardize the naming convention used in all those basic use cases where the implementation by different vendors would be very similar anyway The GenlCam technology allows exposing arbitrary features of a camera through a unified API and GUI Each feature can be defined in an abstract manner by its name interface type unit of measurement and behavior The GenApi module of the GenlCam standard defines how to write a camera description file that describes a specific camera s mapping For detailed information about this convention visit www emva org 4 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vis
157. n 2 4 0 VWsmartek vision 2 SMARTEK Vision Giganetix Camera Models 2 2 11 GC1291M GC1291C GC GC S90 GC BL Image Sensor Sony ICX445 Chromatics Monochrome Color Sensor type CCD Sensor resolution H x W 1296x966 1288x964 1296x966 Optical size 1 3 Pixel size in um 3 75 x 3 75 Analog gain in dB 5 1 to 41 8 Shutter Progressive Scan Exposure time 10us to 10s Max frame rate 8Bit in Hz 30 ADC bit depth 8 bit 14 bit Pixel data formats mono model Mono8g Mono16 Pixel data formats color model Mono8 Mono16 BayerRG8 BayerRG16 Synchronization Free run external and software trigger single shot multi shot Exposure control Freely programmable via GigE Vision interface Power consumption aux 12V 2 5W 2 5W 2 5W Power consumption PoE 3 2W Not supported 3 2W Table 18 Model specific specification of GC1291 39 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 2 SMARTEK Vision Giganetix Camera Models Relative Response 0 9 0 8 0 7 0 6 0 5 0 4 0 3 0 2 0 1 Relative response 350 450 550 650 750 850 950 1050 Wavelength nm Figure 29 Relative response of GC1291 Monochrome from sensor datasheet 0 9 0 8 0 7 0 6 0 5 0 4 0 3 0 2 0 1 Relative response 350 450 550 650 750 Wavelength nm Figure 30 Relative response of GC1291 Color from sensor datasheet 40 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 2 SMARTEK Vision Giganetix Camera M
158. n Figure 98 ascertains the average digital value of the dark pixels and subtracts it from an offset named as clamp level The overall value usually negative is then added to the amplified signal i o U dark Uobe Uamp Eg ClampLevel roln The clamp level can be accessed by the BlackLevel property of the camera It provides percentage access to the value range of the clamp level register of the analog frontend CCD or the sensor CMOS and is by default set to 0 It can be used to reduce the amount of Dark Noise subtracted from the signal or to add a user defined offset to the signal The available clamp level ranges are shown in Table 51 Camera Type Clamp Level in DN BlackLevel in of Clamp Level All Models CCD Sensors 0 to 1023 O to 100 All Models CMOS Sensors 255 to 256 O to 100 Table 51 Range Overview of Clamp Level for CCD and CMOS Cameras SMARTEK Vision digital cameras based on CCD technology can only apply Analog Gain and BlackLevel values to all channels per tap at one time Individual i Note gain settings digital can be achieved by software using the ImageProcAPI in the GigEVisionSDK 119 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 4 Image Acquisition 4 3 3 Automatic Exposure and Gain Control Cameras are often used in different environments and applications with changing conditions such as scene illumination which may vary and change constantly At certain aperture size
159. nable to true 1 65 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 5 Image Transmission over Gigabit Ethernet 5 5 2 4 ChunkUserlIntValue The ChunkUserlIntValue is an integer value defined by the user When ChunkUserlIntValue is enabled a chunk is added to each frame containg the value of the User ntValue property The ChunkUserIntValue is a 4 byte value The following code shows how to set UserIntValue device gt SetIntegerNodeValue UserIntValue value To enable UserlntValue chunk e use ChunkSelector to select UserlntValue chunk e set ChunkEnable to true 1 66 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 6 Image Processing on Camera 6 Image Processing on Camera This section will describe image processing algorithms supported on SMARTEK Vision cameras Currently image processing on camera is supported only on specific camera models 6 1 Luminance Look up Table The GCP series equipped with monochrome sensors support 12 bit look up table The theory and applications of look up table will be introduced in chapter 7 2 1 Figure 129 shows the on camera look up table feature located in the LUT CAM tab within the Image Processing Properties panel If not visible the Image Processing Properties panel can be activated by the menu bar entry Control gt Image Processing Properties Image Processing Properties Ex Mono AE LUT LUT CAM Other Figure 129 LUT CA
160. nd connect all grounds to the single outlet e Use a line filter on the main power supply e Install the camera and camera cables as far as possible from devices generating sparks e Decrease the risk of electrostatic discharge by taking the following measures e Use conductive materials at the point of installation e Use suitable clothing cotton and shoes e Control the humidity in your environment Low humidity can cause ESD problems 5 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 1 Description of Product Family 1 4 Supported Third Party Software The Giganetix cameras have been verified to be applicable with the third party software shown below in Table 2 Software Requirements Cognex Vision Pro Native GigEVision interface Matrox Imaging Library Native GigEVision interface MVTec Halcon Native GigEVision interface National Instruments i National Instruments IMAQdx Plugin LabView Scorpion Vision Plugin provided by SMARTEK Vision Table 2 Third Party Software 6 SMARTEK Vision Giganetix User Manual Version 2 4 0 VYsmartek vision 2 SMARTEK Vision Giganetix Camera Models 2 SMARTEK Vision Giganetix Camera Models The Giganetix camera family consists of a line up of GigE Vision compliant cameras equipped with a selection of CCD and CMOS sensors fitted into several different camera designs The following chapter contains the hardware specification of the single camera series an
161. nd makes it possible to reduce the delay in the processing of incoming Ethernet packets It is usually accessible via the identically named property in the advanced driver settings of the NIC shown in Figure 119 On Microsoft Windows operating systems it can be accessed on the following way 1 Execute ncpa cpl e g via the command box of the Windows Startmenu or after pressing T i Ron your keyboard Right click the target network interface card and choose Properties Press the Configure button below the name of the physical network interface shown in Figure 116 The settings of the driver can be accessed by choosing the Advanced tab of the opened window As shown in Figure 119 set the value of the Interrupt Moderation Rate property to Off or Disabled Intel R 82579LM Gigabit Network Connection Properties General Advanced m Details Power Management The following properties are available for this network adapter Click the property you want to change on the left and then select its value on the right Property Value Adaptive Inter Frame Spacing On Enable PME Energy Efficient Ethemet Master Slave Mode ot Moderation Pv4 Checksum Offload Jumbo Packet Large Send Offload IPw4 Large Send Offload IPv4 Link Speed Duplex Link Speed Battery Saver Locally Administered Address Figure 119 Network interface card advanced driver settings Interrupt Moderation Rate 151 SMARTEK V
162. nformation and Technical Specification All Models Separate and can be determined programmatically via the Devicelnterface of the gige API The following tables show important C API functions in context of the gain As several cameras provide multiple gain registers giving access to the gain of individual color channels or various taps the type of gain needs to be chosen first by the GainSelector property shown in Table 48 Function Description bool GetEnumNodeValue GainSelector double amp nodeValue const Get value of Enumeration node GainSelector bool SetEnumNodeValue Set value of Enumeration node GainSelector GainSelector double nodeValue bool GetEnumNodeValues_List ie Get list of values for Enumeration node GainSelector StringList amp nodeValuesList const GainSelector Table 48 GainSelector Access through API The values for the Enumeration data type GainSelector can be found in Table 49 their availability depends on the camera architecture and can be requested from the camera as shown in Table 48 GainSelector Values Description All Tap1 Tap2 Tap3 Tap4 Global Gain All color channels individual per tap multi tap sensors Red Green Blue Individual Gain per Color Channel Table 49 GainSelector Values After the appropriate gain has been selected via the GainSelector its value can be get set from the Gain property Table 50 shows the most important C functions 1 1
163. ng O Angled Sensor Head 90 O o O Inputs opto coupled 2 2 2 2 Outputs opto coupled 2 2 2 2 Power over Ethernet O GC1932 mono models supported only GCP mono series only On multi tap CCD sensors supported only in vertical direction GCP1931 models supported only GC1932 models supported only Not supported by models with color CCD multi tap CCD and individual CMOS sensors GCP1931 models supported only Horizontal only Overall and tap independent separate color channels only on CMOS models Multi tap CCD sensors only 10 GC1932 models supported only Horizontal only T Available only on Mono GCP cameras 12 Flexible positioning sensor head connected via FPC cable to mainboard only Table 43 Camera API feature list 2 2 84 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 3 Smartek GigEVisionSDK Library 3 Smartek GigEVisionSDK Library The SMARTEK Vision GigEVisionSDK provides a set of tools guides and samples useful for the configuration and image acquisition from GigE Vision cameras as well as the integration into own software applications The GigEVisionSDK library consists of 4 basic parts e Smartek Filter Driver SMARTEK Vision provides its own filter driver to ensure optimal performance of the digital camera This driver is compliant to the GigE Vision standard It separates incoming packets containing image data from other traffic on the network optimizing the image data
164. ng and achieve similar results like CCD sensors 7 Biasing and clocking CMOS image sensors have a clear advantage in biasing and clocking as they work on single bias voltage and clock level 8 Anti blooming is the ability to easily reduce localized overexposure without ruining the rest of the image in the sensor CMOS for the most part is immune to typical blooming CCDs need higher engineering skills and additional hardware to remove blooming 108 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 4 Image Acquisition 4 1 5 Color Imaging with Bayer Pattern In an area image sensor pixels are arranged in a two dimensional array see Figure 91 Each pixel contains a light sensitive photo diode that converts the incoming light intensity into an electrical voltage The amount of light falling into a photo diode over a period of time defined by the exposure or integration time determines the pixel voltage level Based on the technology of a photo diode each pixel is sensitive for a wide range of wavelengths covering on silicon based sensors the whole visible as well as near infrared wavelengths All incoming photons are accumulated to one intensity a separation of the different wavelengths and thus color information is therefore afterwards not possible To build up color images an image sensor needs the ability to extract the color information already from the incoming light One common way for this purpose is to pl
165. nsor triggered by a rising edge while Figure 106 shows the exposure period of the sensor triggered by a Falling Edge External trigger signal period e a External trigger signal amplitude Exposure Figure 105 Exposure with a rising edge of the trigger 131 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 4 Image Acquisition External trigger signal period m External trigger signal amplitude Exposure Figure 106 Exposure with a falling edge of the trigger 4 5 2 5 Trigger Delay The TriggerDelay property defines a period of time for which an incoming trigger signal is delayed until it is internally used to trigger the image sensor The trigger delay is expressed in us and can be set manually by software For external signals entering a physical input line a general latency of 2us is added by the input line circuitry of the camera Together with the TriggerDelay it represents the signal latency in the camera until the image sensor is triggered A further description of the complete trigger process can be found in 4 6 1 Input Lines 132 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 4 Image Acquisition 4 6 Digital Input Output Control The digital inputs and outputs of the Giganetix series can be used to synchronize the camera with other devices and cameras The camera can be triggered on a rising or falling edge of the input trigger signal or trigg
166. nteger The average image brightness that should be reached ExposureTimeAbsLowerLimit Float The minimum exposure time in us that is allowed to be set by the Automatic Exposure algorithm Exposure TimeAbsUpperLimit Float The maximum exposure time in us that is allowed to be set by the Automatic Exposure algorithm GainAbsLowerLimit Float The minimum gain value in dB that is allowed to be set by the Automatic Gain algorithm GainAbsUpperLimit Float The maximum gain value in dB that is allowed to be set by the Automatic Gain algorithm Table 53 Automatic functions parameters For cameras that do not support on camera automatic exposure and automatic gain control the automatic adjustment of the camera s exposure time and gain within user application can be realized by using the ImageProcAPI provided by the GigEVisionSDK For detailed description of the automatic exposure and gain features in the SDK please refer to chapter 7 2 3 Auto Exposure and Auto Gain 1 20 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 4 Image Acquisition 4 3 4 Automatic Tap Balancing Various models of the Giganetix series are equipped with dual tap CCD sensors Like described in 4 1 2 Multi Tap CCD Sensor Readout it is necessary to match the signal levels of all taps to receive a uniform overall image Cameras of the Giganetix series GC GC S90 GC BL therefore provide an Automatic Tap Balancing mechanism which by default cont
167. o exposure supported bit depth and image type 186 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 7 Image Processing in GigEVisionSDK Auto Exposure in the GigEVisionClient In the GigEVisionClient the Auto Exposure AE can be enabled disabled in the Image Processing Properties panel under AE see Figure 148 If not visible the panel can be enabled by the menu bar entry Control Image Processing Properties Four parameters can be adjusted 1 Target Brightness default 50 This parameter determines the average brightness of the image which should be reached For an 8 bit image this value is 127 5 for a 16 bit image 32767 5 2 Min Exposure Time us default 100 minimum exposure time to be calculated This value must not match the minimum exposure time of the image sensor but should not undercut 3 Max Exposure Time us default 300000 maximum exposure time to be calculated This value must not match the maximum exposure time of the camera but should not exceed 4 Exposure Time Threshold default 10 absolute difference between new exposure and old exposure value The new calculated exposure value needs to be higher than this threshold value to be considered as the new exposure to be adjusted File View Control Displays Help a M Find Devices e Set Ip To Device e Connect Device __ Disconnect Device Firmware Update _ Preview Devices X Device Properties C Device Prop
168. o16 Pixel data formats color model Mono8 Mono16 BayerRG8 BayerRG16 Synchronization Free run external and software trigger single shot multi shot Exposure control Freely programmable via GigE Vision interface Power consumption aux 12V 3 6W Power consumption PoE 4 6W Table 27 Model specific specification of GCP2061 57 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 2 SMARTEK Vision Giganetix Camera Models Relative Response 1 0 0 9 0 8 0 6 0 5 0 3 0 2 Relative response 0 0 400 500 600 700 800 900 1000 Wavelength nm Figure 47 Relative response of GCP2061 Monochrome from sensor datasheet 1 0 0 8 0 7 0 5 0 4 0 3 Relative response 0 1 0 0 400 500 600 700 800 900 1000 Wavelength nm Figure 48 Relative response of GCP2061 Color from sensor datasheet 58 SMARTEK Vision Giganetix User Manual Version 2 4 0 VYsmartek vision 2 SMARTEK Vision Giganetix Camera Models 2 2 21 GCP2461M GCP2461C GCP Image Sensor Sony IMX250 Chromatics Monochrome Color Sensor type CMOS Sensor resolution H x W 2464 x 2056 Optical size 2 3 Pixel size in um 3 45 x 3 45 Analog gain in dB O to 24 Shutter Global Shutter Exposure time 28us to 10s Max frame rate 8 16Bit in Hz 24 12 ADC bit depth 8 bit 12 bit Pixel data formats mono model Mono8 Mono10Packed Mono12Packed Mono16 Pixel data formats color model Mono8 Mono16 BayerRG8 BayerRG16 Synchron
169. odels 2 2 12 GC1391M GC1391C GC GC S90 GC BL Image Sensor Sony ICX267 Chromatics Monochrome Color Sensor type CCD Sensor resolution H x W 1392x1040 1384x1038 1392x1040 Optical size 1 2 Pixel size in um 4 65 x 4 65 Analog gain in dB 5 1 to 41 8 Shutter Progressive Scan Exposure time 10us to 10s Max frame rate 8Bit in Hz 20 ADC bit depth 8 bit 14 bit Pixel data formats mono model Mono8g Mono16 Pixel data formats color model Mono8 Mono16 BayerRG8 BayerRG16 Synchronization Free run external and software trigger single shot multi shot Exposure control Freely programmable via GigE Vision interface Power consumption aux 12V 2 5W 2 5W 2 5W Power consumption PoE 3 2W Not supported 3 2W Table 19 Model specific specification of GC1391 41 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 2 SMARTEK Vision Giganetix Camera Models Relative Response 0 9 0 8 0 7 0 6 0 5 0 4 0 3 0 2 0 1 Relative response 350 450 550 650 750 850 950 1050 Wavelength nm Figure 31 Relative response of GC1391 Monochrome from sensor datasheet 0 9 0 8 0 7 0 6 0 5 0 4 0 3 0 2 0 1 Relative response 350 450 550 650 750 Wavelength nm Figure 32 Relative response of GC1391 Color from sensor datasheet 42 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 2 SMARTEK Vision Giganetix Camera Models 2 2 13 GC1392M GC1392C GC GC S90 GC BL Image
170. on It provides access to all functionalities available on the toolbar Also main dialogs within the GigEVisionClient can be switched on or off under the entry Control Several dialogs are disabled by default and can be activated manually Preview separate displays for each connected camera Device Property Info GenlCam attributes of the selected device property API Settings access to configuration settings of API and driver Histogram display a histogram for the currently selected device Log display the API log e Toolbar enables quick access to basic functions of the camera find connect disconnect IP setup image handling open save zoom etc GUI handling save GUI arrangement open reset GUI to default etc e Device list dialog lists all GigE Vision compliant devices found on the network and its connection status It further acts as the camera selector e Device properties dialog gives access to all features GenlCam supported by the device e Image Processing properties dialog gives access to the parameterizations settings of the image processing algorithms e Info bar displays information like image size frame rate data transfer rate cursor position and pixel value at cursor position e Image display window main window for displaying a single image or video stream 89 SMARTEK Vision Giganetix User Manual Version 2 4 0 VYsmartek vision 3 Smartek GigEVisionSDK Library 4 amp Gig
171. orkInterfaced GevMACAdd 6CD146000000 GevCurrentlP 6 onl a a e To E a r E j E Anad Figure 132 Modify gamma value in GigEVisionClient 1 69 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 7 Image Processing in GigEVisionSDK 7 Image Processing in GigEVisionSDK The ImageProcAPI provided by the GigEVisionSDK extends the camera functionality and provides a compre hensive set of fundamental image operations and image processing algorithms including White Balancing Gamma Correction Demosaicing Color Correction and many more All programming languages supported by the GigEVisionSDK API are supported by the ImageProcAPI as well namely C C Delphi C and VB NET Table 86 lists all image processing algorithms implemented in the mageProcAPI including the supported input image type Supported image input type Image statistics Monochrome Raw Bayer RGB Histogram V V V Average luminance V V V Image processing algorithms Look up Table LUT V V V Digital Gain V V V Auto Exposure V V V White Balance V V Gamma Correction V V V Debayering Demosaicing Bilinear V High Quality Linear V Pixel Grouping V Colorized V Matrix Multiplication V Gimp HSL V Sharpening V V RGB to Gray conversion V Bit Depth conversion V V V Image Processing pipeline Color pipeline V V Table 86 Implemented image processing algorithms in ImageProcAPI The installed ImageProcAPI includes severa
172. ormats Mono8 BayerGR8 Synchronization Free run external and software trigger single shot multi shot Exposure control Freely programmable via GigE Vision interface Power consumption aux 12V 2 2W 2 2W 2 2W Power consumption PoE 2 8W Not supported 2 8W Table 9 Model specific specification of GC2041C 21 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 2 SMARTEK Vision Giganetix Camera Models Relative Response 0 9 0 8 0 7 0 6 0 5 0 4 0 3 0 2 0 1 Relative response 350 450 550 650 750 Wavelength nm Figure 12 Relative response of GC2041 Color from sensor datasheet 22 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 2 SMARTEK Vision Giganetix Camera Models 2 2 3 GC2591M GC2591C GC GC S90 GC BL Image Sensor Aptina MT9P031 Chromatics Monochrome Color Sensor type CMOS Sensor resolution H x W 2592 x 1944 Optical size 12 Pixel size in um 2 2 X 2 2 Analog gain in dB 0 to 23 5 Shutter Rolling Exposure time 36us to 10s Max frame rate 8Bit in Hz 14 ADC bit depth 8 bit Pixel data formats Mono8 BayerGR8 Synchronization Free run external and software trigger single shot multi shot Exposure control Freely programmable via GigE Vision interface Power consumption aux 12V 2 2W 2 2W 2 2W Power consumption PoE 3 0W Not supported 3 0W Table 10 Model specific specification of GC2591 23 SMARTEK Vision Giganetix User Manual Version 2 4 0
173. processed OK Firmware written to device memory OK Firmware CRC OK ash written OK ak da ial successful Figure 85 Firmware update dialog after the update is successfully executed Not In case of any major errors during the update process please repeat the firmware upload Do not restart a camera before the process was finished successfully 1 01 SMARTEK Vision Giganetix User Manual Version 2 4 0 VYsmartek vision 4 Image Acquisition 4 Image Acquisition The following chapter gives a brief overview about the general principles of digital image acquisition based on the Giganetix series starting at the point where the image was projected to the image sensor plane It further includes a description of the camera s main functionality as well as the main configuration options of the image acquisition 4 1 General Camera Architecture The Giganetix camera series consist of multiple electronic components to convert incoming light to a digital signal process it and send it to the host device or network Figure 86 shows the simplified architecture of each camera containing the image data path orange from the sensor to the Ethernet Network as well as multiple control paths red LEOL Sensor Ethernet Network Controller gt Control Data Image Data Figure 86 Camera Architecture Scheme Like shown in Figure 86 the image data chain orange starts with the Image Sensor converting incoming light to electri
174. r each channel Without looking to the images the following information can be determined by the histogram e Inthe first row the population of the pixel values in each histogram is shifted to the right of the center brighter region it indicates an overexposed image e In the second row the three histograms are shifted to the left darker region it indicates an underexposed image e Inthe third and last row the three histograms show a centered uniform distribution of pixel intensities it indicates an optimal exposed image o LL LLUN 0 10 150 20 20 Histogram of Histogram of Histogram of Overexposed Image red channel green channel blue channel Histogram of Histogram of Histogram of Underexposed Image red channel green channel blue channel 1 172 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 7 Image Processing in GigEVisionSDK Histogram of Histogram of Histogram of Optimal exposed Image red channel green channel blue channel Figure 134 Example of using histogram to determine optimal image exposure Other applications for histograms are e Calculation of optimal exposure time e Calculation of correction values for white balancing e Contrast enhancement using histogram equalization e Global thresholding often used in the area of image segmentation Histogram in the GigEVisionSDK In the GigEVisionSDK the ImageProc
175. r the human eye unnatural looking images on color camera models To allow an accurate reproduction of images from color image sensors R cut filters are used R cut filters are short pass filters that block near infrared light of wavelengths longer than approximately 660nm and pass visible light All color camera models are equipped with an IR cut filter as standard monochrome models do not have an R cut filter installed by default Figure 67 below shows the transmission curve of the filter used in the Giganetix camera family 100 90 80 70 a 60 5 S 50 D E 40 7p E 30 20 10 0 400 500 600 700 800 900 1000 Wavelength nm Figure 67 IR cut filter specification 2 3 5 Ingress Protection Class The camera housing fulfills the Ingress Protection Class of IP40 It is protected against solid objects with a diameter larger than 1 mm tools wires and small wires and has no protection against liquids 79 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 2 SMARTEK Vision Giganetix Camera Models 2 4 Declarations of Conformity 2 4 1 CE Manufacturer Smartek d o o Dobrise Cesarica 5 HR 40000 Cakovec Croatia Product Digital Gigabit Ethernet Camera Type Family Giganetix Standard Giganetix S90 Version Giganetix Board Level Giganetix Plus Type of Equipment GC1281M GC2041C GC2591M GC2591C GC3851M GC3851C GC1932M GC1932C GC651M GC651C GC652M GC652C GC653M GC653C GC781M GC781C GC10
176. r the red green and blue channel and Ro Go Bo are the output color values for the red green and blue channel Moo Mo1 Mo Ri Ro Mo m M2 X Gi Go M29 M M2 Bi Bo Figure 160 Matrix Multi RGB parameters and results In effect this calculates Ro Moo Ri Mo Gi Mo2 Bi Go M10 Ri mM 1 Gi Myj2 Bi Bo M20 Ri m21 Gi M22 Bi Common applications for the 3x3 matrix operation are for example color correction color balancing and the conversion from color to luminance Matrix Multiplication 3x3 in the GigEVisionSDK In the GigEVisionSDK the ImageProcAPI provides the programming interface to configure and execute the 3x3 matrix multiplication algorithm The bit depths and image types supported are shown in Table 96 Supported bit depth Supported image input 8 bit per channel 16 bit per channel Monochrome J V Raw Bayer V V Color RGB J V Table 96 Matrix Multiplication supported bit depth and image type 198 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 7 Image Processing in GigEVisionSDK Matrix Multiplication 3x3 in the GigEVisionClient In the GigEVisionClient the demosaicing options can be accessed in the Image Processing Properties panel under Matrix shown in Figure 161 If not visible the panel can be enabled by the menu bar entry Control Image Processing Properties AW GigEVisionClient GCP1941C 6C D1 46 00 01 60 192 168 0 134
177. s e CounterAndTimerControl Group for counter and timer controls CounterSelector Select which counter will be active CounterEventSource Select source for counter e CounterValue Set read counter value 99 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 3 Smartek GigEVisionSDK Library 3 6 5 Log Dialog The Log dialog contains logging information from SDK and cameras shown in Figure 84 Log eX Timestamp Type Priority Message text Fri Dec 20 1 192 168 0 5 INFO NORMAL GigEVisionAPE Connected to device Fri Dec 20 1 192 168 0 5 INFO NORMAL GigEVisionAPL Disconnected from device Fri Dec 20 1 192 168 0 5 INFO NORMAL GigEVisionAPL Connected to device Figure 84 Log dialog with API logging 3 6 6 Firmware Update The GigEVisionClient contains a module to update the firmware of a Giganetix camera To update the firmware of a SMARTEK Vision camera choose and connect the target camera in the GigEVisionClient and start the Firmware Update dialog via the Control category in the menu bar In the Firmware Update Dialog shown in Figure 85 follow the following steps 1 Browse for Firmware Updates Find and open a firmware to be uploaded to the camera by pressing the Browse button The latest firmware can be requested from your local sales representative or at support SMART EK vision com 2 Compatibility Check Passed After selecting and opening a firmware file the app
178. sed by the current acquisition state of the camera the UserOutput can be defined by the user and thus be used to set a physical output line manually The value of this property can be accessed after selecting the appropriate value by the UserOutputSelector according to Table 68 Value Type Description UserOutputSelector Enumeration Select between UserOutput1 and UserOutput2 UserOutputValue Boolean Value of the selected UserOutput Table 68 User Outputs 136 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 5 Image Transmission over Gigabit Ethernet 5 Image Transmission over Gigabit Ethernet The network interface of SMARTEK Vision digital cameras is designed to be fully compatible with the GigE Vision standard The following section describes features of the data interface of the Giganetix series as well as the SMARTEK Vision GigEVision Filter Driver Further several optimization settings of the network driver are introduced and the pixel structure of the image data is elaborated 5 1 Smartek GigE Vision Filter Driver Ethernet packets can come from various sources and do not have to be in order This makes it necessary that each data segment is usually routed through the whole network stack of the operating system until it is delivered to the target application The CPU load can especially at high data rates be significantly affected by this process as well as the latency of the image stream The UDP protocol used
179. should be checked to be supported by the camera The following C code shows how to check if ChunkMode is available device gt IsAvailable ChunkModeActive lf chunk data is available it can be enabled by the ChunkMode property device gt SetBooleanNodeValue ChunkModeActive true ChunkMode can be disabled by setting the ChunkModeActive feature to false By enabling ChunkMode Imagel nfo chunk is automatically enabled and included into the image payload data this chunk cannot be disabled as long as ChunkMod e is active Also all additional chunks are made available for inclusion The appended Imagelnfo chunk contains basic informations about the image and is required to correctly display acquired images The attributes included in the mage nfo chunk are shown in Table 82 Chunk Feature Description ChunkPixelFormat Pixel format of the current image ChunkLinePitch Line size in bytes ChunkWidth Width of the image ChunkHeight Height of the image ChunkOffsetX Offset x of the image ChunkOffsetY Offset y of the image Table 82 Basic chunks Further additional chunks can optionally be included into the image by following the steps below First desired chunk needs to be selected device gt Set TYPE NodeValue ChunkSelector ChunkName Afterward it needs to be enabled device gt SetBooleanNodeValue ChunkEnable true 162 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 5 Image Transmission o
180. sion 2 4 0 Qsmartek vision 4 Image Acquisition Parameter Type Description TbpVerticalStep Integer Vertical step used in Tap Balance algorithm TbpFramesToAvg Integer Number of frames averaged and used in Tap Balance algorithm TbpPixelDiffTreshold Float Maximum difference between adjacent pixels on different taps to include them in calculation TbpTapDiffTreshold Float Maximum allowed difference between taps TbpTapDiffTresholdPercent Float Maximum allowed difference between taps in percent Tbp TapDiffTresholdBLoAvg Float Maximum allowed black level difference between taps Table 54 Auto Tap Balancing Parameters By lowering the TbpVerticalStep parameter the algorithm uses more pixels in calculation and consequently provides more precise results On the other hand using more pixels in calculation causes the algorithm to be slower and can lead to a decreased frame rate Increasing the TbpFramesToAvg parameter increases the amount of frames used in averaging localized single frame tap differences thus have smaller impact on the final result when tap difference is compared to the threshold On the other hand increasing the number of frames used for averaging increases the delay or reaction time between detecting the difference between taps and adjusting it The operation of the automatic tab balancing algorithm can be controlled via the property GainAutoBalance adjusting the gain and BlackLevelAutoBalance adjusting the Black Leve
181. sor datasheet 36 SMARTEK Vision Giganetix User Manual Version 2 4 0 VYsmartek vision 2 SMARTEK Vision Giganetix Camera Models 2 2 10 GC1031M GC1031C GC GC S90 GC BL Image Sensor Sony ICX204 Chromatics Monochrome Color Sensor type CCD Sensor resolution H x W 1034x779 1032x778 1034x779 Optical size 1 3 Pixel size in um 4 65 x 4 65 Analog gain in dB 5 1 to 41 8 Shutter Progressive Scan Exposure time 10us to 10s Max frame rate 8Bit in Hz 30 ADC bit depth 8 bit 14 bit Pixel data formats mono model Mono8g Mono16 Pixel data formats color model Mono8 Mono16 BayerRG8 BayerRG16 Synchronization Free run external and software trigger single shot multi shot Exposure control Freely programmable via GigE Vision interface Power consumption aux 12V 2 2W 2 2W 2 2W Power consumption PoE 3 0W Not supported 3 0W Table 17 Model specific specification of GC1031 3 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 2 SMARTEK Vision Giganetix Camera Models Relative Response 0 9 0 8 0 7 0 6 0 5 0 4 0 3 0 2 0 1 Relative response 350 450 550 650 750 850 950 1050 Wavelength nm Figure 27 Relative response of GC1031 Monochrome from sensor datasheet 0 9 0 8 0 7 0 6 0 5 0 4 0 3 0 2 0 1 Relative response 350 450 550 650 750 Wavelength nm Figure 28 Relative response of GC1031 Color from sensor datasheet 38 SMARTEK Vision Giganetix User Manual Versio
182. ssing packet is waited for When this time expires there will be no more resend requests sent to camera even if the driver did not send all resend request specified with MaxResendPacketRetry and the packet will be considered as lost Maximum time ms that the resend mechanism will wait for the next packet If this time expires and there are still retries left the resend request is sent again Maximum number of missing packets in one frame If the frame has more missing packets then this value it will be dropped Maximum amount of new images pending in the buffer Current image is dropped if this amount is exceeded Maximum amount of incoming payload packets pending in the buffer Current frame is dropped if this amount is exceeded Maximum amount of missing payload packets from a block of the image to be accepted Table 70 Packet Resend Parameters 2 2 In healthy networks it is not necessary to recover more than a small number of packets FB vc per hundreds of transmitted images Should the amount of packet resends rise to a unnatural height check the correctness of the physical network setup cabling switches and the network optimization settings located in chapter 5 5 Network Interface Optimization SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 5 Image Transmission over Gigabit Ethernet Example 1 Figure 109 illustrates the packet resend mechanism with the following assumptions e Pac
183. stment The Gamma Adjustment assumes that the sensors gamma is 1 0 and comes into consideration when displaying an image on a display device It is used to encode linear luminance or RGB values to match the non linear characteristics of display devices Depending on the characteristics of the sensor and also influenced by gain or black level the gamma output of the camera is not ideally 1 0 If only the Gamma Adjustment is applied to the image the real gamma may represent a combination of the encoding gamma and the sensor s gamma The consequence of this effect is that the brightness levels of the image outputted on the display are distorted In situations where the gamma of the sensor is not 1 0 the Gamma Correction can be used to linearize the non linear sensor s characteristics to match a linear gamma of 1 0 For this purpose a well calibrated gray scale is usually used to determine the Gamma Correction values The gamma value can be applied using the ImageProcAPI The term Gamma Correction will be used throughout this document and depends on the context it can be understood as either Gamma Correction or Gamma Adjustment Gamma Correction Workflow The workflow of correcting gamma is illustrated in Figure 153 First an image of a known and calibrated object like a Color Checker chart will be captured Based on this the gamma of the sensor can be determined a sample of a sensor gamma Curve is shown in the first block of Figure 153 from left to
184. t GR8 RG8 GB8 BG8 156 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 5 Image Transmission over Gigabit Ethernet 5 4 3 2 BayerGR16 BayerRG16 BayerGB16 BayerBG16 In an image with pixel format Bayer16 each pixel value P is represented by two byte or 16 bits The GR RG GB or BG notation describes the Bayer pattern of the image sensor used in the camera For detailed description about the Bayer filter please refer to chapter 4 1 5 Color Imaging with Bayer Pattern The Bayer16 pixel format in SMARTEK Vision digital cameras is specified like shown below PixelFormat BayerGR16 BayerRG16 BayerGB16 BayerBG16 Description 16 bit monochrome unsigned Pixel size 2 byte Value range 0 65535 Table 79 Specification PixelFormat Bayer16 The two bytes are arranged in little endian order which means the Least Significant Byte comes first the most significant byte comes second The memory layout of the image with the Bayer16 pixel format is shown in Figure 127 Starting from the upper left of the image byte 0 and byte 1 represent the value of pixel P 1 1 byte 2 and byte 3 represent the value of pixel P 1 2 and so on The least significant bit is assigned to bit O of the first byte the most significant bit to bit 7 of the second byte P 1 1 P 1 2 Byte 0 Byte 1 Byte 2 Byte 3 LSB MSB LSB MSB oel e Plesl 5 Figure 127 Image layout with pixel format GR16 RG16 GB16 BG16 157 SM
185. ted cameras was found check the status of the network adapters and their configuration as well as the status LEDs on the Ethernet connector of i Note the camera described in chapter 2 3 1 Ethernet Interface Make sure everything is plugged properly and that the firewall settings are not blocking the connection to camera or GigEVisionClient After discovering one or multiple cameras there is one of three available flags in front of each camera name displayed in the Devices list k3 Device available and waiting for connection v Connection to device established A Warning In case the A Warning sign is shown in front of a camera name there could be two reasons 1 The IP address and subnet mask of network interface card or camera are invalid 2 The link speed of the used network interface is providing less than 1000 Mbit s For a quick start it is recommended to only use Gigabit Ethernet NICs configured according to Table 73 shown in chapter 5 2 LAN IP Configuration In all cases it must be ensured that further NIC s within the PC are not configured for an IP address within the same logical network as the NIC for the camera connection 91 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 3 Smartek GigEVisionSDK Library 3 6 2 2 Device IP Setup To change the IP address of a camera select the target device in the list of devices and press the Set Ip to Device icon shown in Figure 72 4 GigEVisionClient G
186. ter 90 angled and board level versions Excellent thermal linkage between sensor and housing Horizontal and vertical binning Opto isolated inputs and outputs Very competitive price to performance ratio Firmware update via SDK over Ethernet Rubber sealed image sensor space Industrial connectors ElAJ Hirose 12 pin and screw mount RJ45 model specific feature Table 1 Key Benefits and Features SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 1 Description of Product Family 1 1 Precautions Due to the ultra small compact housing of the camera it has a tendency to develop a high temperature To maintain an optimal working temperature mount the camera on a metal surface Do not attempt to disassemble this camera there are sensitive optical parts inside Tampering with it could lead to permanent damage Do not expose this camera to rain or moisture This device is not intended to work under wet conditions Do not face this camera towards the sun extremely bright light or light reflecting objects Even when the camera is not in use put the supplied lens cap on the lens mount to prevent damage to the sensor Handle this camera with the maximum care Do not throw the device there are fragile glass parts inside Operate this cameras only with the type of power source that meets the specifications indicated on the camera and within the documentation Operating the camera outside of the specific
187. the temperature hereby the useful signal falls rapidly As every application and environment has its own characteristics SMARTEK Vision can only suggest general strategies to keep the camera s temperature low e Mount housed cameras with at least one complete side of the housing to a massive heat conductive material e g aluminum make sure that the whole surface is constantly in touch e Active cooling of the camera by a fan will significantly decrease the temperature e Keep the ambience temperature as low as possible Board level cameras e f mounted into another closed device make sure to offer a constant heat exchange by e g an air flow e Additional active passive heat sinking of the critical components Sensor Head Flash FPGA DDR Ethernet Physical PoE driver etc allows for higher ambient temperatures at own risk Example Figure 66 gives an example of the thermal behavior of a Giganetix camera mounted to different heat conductors described in Table 41 The used camera is a GC1921M with a 2 Tap Truesense Imaging sensor which was chosen as one with the highest power consumption 3 6 Watts in the Giganetix lineup Color Label Description Not mounted Camera is placed on a material with a very low heat conductivity plastic the main heat dissipation occurs over the surrounding air Aluminum loose Camera is placed loose on a construction profile 150x70x30 mm of a material with a very good heat conductiv
188. the definition of data types and the ways images and other data are transferred from device to application e GigE Device Discovery Mechanism provides mechanisms for a device to obtain valid IP address and for an application to enumerate devices on the network e XML description file based on the GenlCam standard which provides the mapping between a device feature and the device register implementing the feature 3 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 1 Description of Product Family 1 2 2 GenlCam GenlCam Generic Interface for Cameras is a generic AG programming interface for machine vision cameras The o A goal of the standard is to decouple industrial camera GEN lt I gt CAM ws nVa interface technology such as GigE Vision Camera Link USB or FireWire from the user application programming interface API GenlCam is administered by the European Machine Vision Association EMVA GenlCam consists of three modules to help solve the main tasks in machine vision field in a generic way These modules are e GenApi configures the camera and details how to access and control cameras by using an XML description file e Standard Feature Naming Convention SFNC are the recommended names and types for common features in cameras to promote interoperability e GenlTL is the transport layer interface for enumerating cameras grabbing images from the camera and moving them to the user applicatio
189. the equipment under FCC rules For customers in Canada This apparatus complies with the Class A limits for radio noise emissions set out in the Radio Interference Regulations Pour utilisateurs au Canada Cet appareil est conforme aux normes classe A pour bruits radioelectriques sp cifi es dans le R glement sur le brouillage radioelectrique Life support applications These products are not designed for use in life support systems appliances or devices where malfunction of the products can reasonably be expected to result in personal injury Customers Integrators and End Users using or selling these products for use in such applications do so at their own risk and agree to fully indemnify SMARTEK d o o for any damages resulting from any improper use or sale WWW S MA RT E K vis i on SMARTEK d o o 2015 information is subject to change without prior notice Version 2 4 0 from 2015 12 01 VYsmartek vision Trademarks All trademarks trade names and products represented in this document unless stated otherwise are brands protected internationally by law No use of these may be made without prior written authorization of SMARTEK d o o except to identify the products or services of the company Warranty SMARTEK d o o has made reasonable efforts to ensure that the information provided in this document is accurate at the time of inclusion However there may be unintentional and occasional errors for which we apologize SMARTEK
190. tical size 2 3 Pixel size in um 3 45 x 3 45 Analog gain in dB 5 1 to 41 8 Shutter Progressive Scan Exposure time 10us to 10s Max frame rate 8Bit in Hz 15 ADC bit depth 8 bit 14 bit Pixel data formats mono model Mono8 Mono16 Pixel data formats color model Mono8 Mono16 BayerRG8 BayerRG16 Synchronization Free run external and software trigger single shot multi shot Exposure control Freely programmable via GigE Vision interface Power consumption aux 12V 3 6W 3 6W 3 6W Power consumption PoE Not supported Not supported 4 5W Table 22 Model specific specification of GC2441 47 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 2 SMARTEK Vision Giganetix Camera Models Relative Response 0 9 0 8 0 7 0 6 0 5 0 4 0 3 0 2 0 1 Relative response 350 450 550 650 750 850 950 1050 Wavelength nm Figure 37 Relative response of GC2441 Monochrome from sensor datasheet 0 9 0 8 0 7 0 6 0 5 0 4 0 3 0 2 0 1 Relative response 350 450 550 650 750 Wavelength nm Figure 38 Relative response of GC2441 Color from sensor datasheet 48 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 2 SMARTEK Vision Giganetix Camera Models 2 2 16 GC1021M GC1021C GC GC S90 GC BL Image Sensor Truesense Imaging KAI 01050 Chromatics Monochrome Color Sensor type 2 Tap CCD Sensor resolution H x W 1024 x 1024 Optical size 1 2 Pixel size in um 5 0 X55 Analog
191. tix User Manual Version 2 4 0 VYsmartek vision 2 SMARTEK Vision Giganetix Camera Models Equal to the GCP series the board level version is equipped with the latest version of the camera s power supply and supports Power over Ethernet Due to the large dimensioned components also sensors with an increased power consumption like multi tap CCDs are supported z gt z e Bx Figure 6 GC BL Sensor head FPC cable and mainboard from left to right on www SMARTEKvision com downloads php after reading the following safety For assembling instructions please refer to the GC BL Assemble Guide available instructions carefully 2 1 3 1 Further Precautions for Board Level Cameras Before the first operation of a Giganetix Board Level camera please read the following safety instructions and cautions carefully Abuse and misapplication may lead to limited or canceled warranty ESD Cautions All boards of the camera are sensitive to electrostatic discharge Handle all components of the camera only in static save areas and make sure that no electrostatic loads from your body are discharged to any of the boards e Discharge yourself on a grounded body before touching e Work in a static safe work area on an antistatic mat e Wear an antistatic wrist strap the whole time handling the camera boards e Do not hold any of the camera s components to you clothing 1 3 SMARTEK Vision Giganetix User Manual Version
192. total transfer time must not exceed 16 67us if frame rate is to be preserved Example Three cameras are connected to one PC and are sending 1500 byte packets each GevSCPD should be such that packets from all three cameras are serialized to the PC s Network Interface Card Setting inter packet delay to 25us 12 3us 12 3us 25us will ensure that packets from other two cameras will fit in the gap between two consecutive packets Camera 1 Packet 3 Delay Packet 2 Arriving packet flow Camera 2 Delay Packet 2 Delay Packet1 Packet 1 Packet 1 Camera 3 Delay Racket Delay Figure 113 Packet flow example with three cameras and inter packet delay 144 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 5 Image Transmission over Gigabit Ethernet 5 1 3 Frame Transfer Delay The Frame Transfer Delay sets the frame transfer start delay in ticks for the selected stream channel This value represents a delay between the point in time when a frame is ready for transmission and when transmission actually starts Frame Transfer Delay feature is useful in situations where there are many simultaneously triggered cameras on the network requiring more bandwidth than is available In such scenario network can become overwhelmed with incoming data and start losing packets triggering packet resend mechanism To calculate required Frame Transfer Delay use the formula
193. tprameReadout Can be calculated by multiplying tReadRow with the total count of lines in the frame lExpasure lkrameReadout tread Row Le tread Row tFrame Exposure F Readout Figure 94 Electronic Rolling Shutter Frame Readout The duration of readout per frame can be calculated with the following formula by multiplying the time needed to read out each row with the total number of rows tFrameReadout tReadRow ImageHeight 1 1 2 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 4 Image Acquisition Table 46 shows the read out time treadrow for the default image width of each CMOS model Model tReadRow GC1281 31 75us GC2041 53 31us GC2591 36 38us GC3851 23 09us Table 46 Read out time treadRow per line for CMOS Sensors ERS Due to the fact that the exposure duration of each line is shifted each of them catches a different moment of the scene what leads to unwanted effects especially in moving scenes This effects can be reduced or completely removed in many cases by creating a controlled illumination situation Eliminating Rolling Shutter Effects In many cases a strobe illumination or mechanical shutter can help to remove the rolling shutter effect in moving scenes by putting light onto the sensor only while all lines are within integration Figure 95 shows this illumination window aS tyjumination Staring at truminationDelay Frame Start lExposur lErameReadoui
194. ty Figure 97 Different exposure time settings The exposure time for SMARTEK Vision digital cameras is configurable by the GenlCam Float property ExposureTime and expressed in microseconds us Each camera has a predefined range of values depending on the sensor and its technology The minimum and maximum exposure time for each camera model is shown in 2 2 Sensor Information and Technical Specification All Models Separate and can be determined programmatically via the Devicelnterface of the gige API 1 1 5 SMARTEK Vision Giganetix User Manual Version 2 4 0 VYsmartek vision 4 Image Acquisition Function Description bool GetFloatNodeValue Get value of IFloat node ExposureTime Exposure Time double amp nodeValue const bool SetFloatNodeValue Exposure Time double nodeValue bool GetFloatNodeMin ExposureTime double amp nodeMinValue const bool GetFloatNodeMax ExposureTime double amp nodeMaxValue const Set value of IFloat node ExposureTime Get minimum value of IFloat node ExposureTime Get maximum value of IFloat node ExposureTime Table 47 ExposureTime Access through API Table 47 shows important C API functions in context of the exposure time a full description of the interface and further supported languages can be found in the API documentation located in the GigEVisionSDK installation folder The duration of the exposure time can affect also the maximum frame rate per second
195. ure Control Auto Exposure Control Frame Rate Control Partial Scan ROI AOI WOI Multiple ROI ROI Centering Binning Reverse X Horizontal Mirroring Reverse Y Vertical Mirroring Analog Gain Control Auto Analog Gain Control Analog Black Level Control Online Tap Balancing Factory Tap Calibration Gamma Digital Shift Lookup Table Chunk Data Software Trigger External Trigger Line Line Debouncer Trigger Line Input Delay Trigger Configuration Storing User Sets Acquisition Exposure Frame Active Output Acquisition Frame Trigger Wait Output User Defined Outputs IP Configuration LLA DHCP Persistent Jumbo Frame Size in Bytes Inter Packet Delay 2 SMARTEK Vision Giganetix Camera Models Giganetix Giganetix Plus GIG GIG VISION VISION GC GC S90 GC BL GCP o P o e o e e QO O O o o o o 6 o10 o10 o10 o o gt o o o o P o e o o o o o 4000 4000 4000 8000 Table 42 Camera API feature list 1 2 83 SMARTEK Vision Giganetix User Manual Version 2 4 0 VYsmartek ONO OF ON 9 vision 2 SMARTEK Vision Giganetix Camera Models Series Giganetix Giganetix Plus Interface GiG GiG VISION VISION On Camera Features GC GC S90 GC BL GCP Frame Transfer Delay Time Stamps Pixel Data Formats Mono8 Mono10Packed o o Mono12Packed O O O Mono16 Bayer8 Bayer16 Hardware Housi
196. ver Gigabit Ethernet A list of chunk features is shown in Table 83 Chunk Feature Description ChunkGain Gain applied to the image ChunkExposureTime Exposure time of the image ChunkCounterValue Selected counter value ChunkUserlntValue User defined integer value Table 83 Additional chunks i Note The PayloadType of the camera changes from Payloadlmage to PayloadChunkData On receiving images containing chunk data the chunk information can be read using the following code if imageInfo gt IsReadable ChunkNAME TYPE value imageInfo gt GetChunkNode ChunkNAME gt GetTYPENodeValue value By reading chunks this way it can be made sure that it is included into the image before it us tried to be accessed and what makes sure that application will not crash if chunk is accidently not sent Table 84 shows important C functions related to chunk data a full description of interface and further supported languages can be found in the API documentation located in the GigEVisionSDK installation folder Function Description device gt lsAvailable ChunkModeActive Returns true if ChunkMode is available or false if not device gt SetBooleanNodeValue ChunkModeActive value device gt Set TYPE NodeValue ChunkSelector ChunkName Enable or disable ChunkMode Select chunk to enable or disable device gt SetBooleanNodeValue Enable or disable selected chunk ChunkEnable double value imagelnfo
197. vided by the GigEVisionSDK is fixed and cannot be modified only the parameters and the execution of each algorithm can be configured For other cases a custom image processing pipeline can by combined by the available algorithms in a preferred order Color Image Processing Pipeline in GigEVisionSDK In the GigEVisionSDK the ImageProcAPI provides the programming interface for executing the predefined color image processing pipeline within user applications The bit depths and image types supported are shown in Table 103 For a detailed description on how to use this feature please refer to the GigE VisionSDK API Help located in the doc folder of the GigEVisionSDK installation directory Supported bit depth Supported image input 8 bit per channel 16 bit per channel Monochrome J J Raw Bayer J V Color RGB Table 103 Color pipeline supported bit depth and supported image type Color Image Processing Pipeline in GigEVisionClient The color image processing pipeline is enabled by default for color cameras The user only can activate or deactivate a specific algorithm or configure the parameters for each algorithm the order of the pipeline cannot be changed 21 0 SMARTEK Vision Giganetix User Manual Version 2 4 0 VWsmartek vision 8 Contact Information Published by Smartek d o o Dobrise Cesarica 5 HR 40000 Cakovec Croatia www SMARTEK vision Email info SMARTEK vision com Tel 49 89 381 53 30 57 Fax 49 89 381 5
198. wo phases first it computes all the unknown green values and then it uses the input data along with the green values computed in the first phase to compute all the missing red and blue values The main principle is to determine the gradients in the four directions from the current processed pixel and select the value with the smallest one for final calculation The smallest gradient value is chosen to reduce edge artifacts due to the fact that a higher gradient value is an indication for edge transition In comparison with the bilinear and HQ Linear interpolation methods Pixel Grouping is the most memory and computational intensive algorithm However the result color image is at very high quality with very little edge artifacts especially for scenes with large areas of uniform colors that are separated by clear boundaries Colorized Output The Colorized algorithm is not doing any interpolation It simply creates an intensity Bayer RGB color image by setting the missing color values to zero The intensity value of the current pixel remains unchanged Restrictions at the Image Borders Nearly all interpolation methods have problems at the borders of the image Depending on the size of the filter used 3x3 5x5 one or more neighbors in each direction are needed for interpolation at the borders at least one direction is not available like illustrated in Figure 157 and Figure 158 for Bilinear and HQ Linear Figure 157 Bilinear algorithm
199. yout of the image with Mono12Packed pixel format is shown in Figure 124 Starting from the upper left of the image byte 0 and first 4 bits of byte 1 represents the value of pixel P 1 1 Second half of bits in byte 1 together with all bits from byte 2 represents the value of pixel P 1 2 and so on In each byte the bitorder is by default little endian the least significant bit is assigned to bit O and the most significant bit to bit 11 P 1 1 P 1 2 I ee e _ pmo opa mea ome e oe pepel Figure 124 Image layout with pixel format Mono12Packed 5 4 2 4 Mono16 In an image with pixel format Mono16 each pixel value P is represented by two bytes or 16 bits The Mono16 pixel format in SMARTEK Vision digital cameras is specified as shown below PixelFormat Mono16 Description 16 bit monochrome unsigned Pixel size 2 byte Value range 0 65535 Table 77 Specification PixelFormat Mono16 155 SMARTEK Vision Giganetix User Manual Version 2 4 0 Qsmartek vision 5 Image Transmission over Gigabit Ethernet The two bytes are arranged in little endian order which means that the Least Significant Byte LSB is arranged first the most significant byte second The memory layout of the image with the Mono16 pixel format is shown in Figure 125 Starting with the upper left of the image byte 0 and byte 1 represent the value of pixel P 1 1 byte 2 and byte 3 represent the value of pixel P 1 2 and so on T

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