Ganz ZNS LPR Manual
Contents
1. 5280 4660 CBC AMERICAS Corp www ganzsecurity com 2014 CBC AMERICAS Corp All Rights Reserved GANZ Ganz ZNS LPR User Manual Security Solutions After you have completed server configuration Camera Setup Wizard will start to assist you with selecting camera to use for plate recognition In case you don t have cameras where number plates can be seen it is possible to set up camera emulation on ZNS Server using pre recorded stream Camera Setup Wizard X Camera Selection Flease select camera from cameras available on serwer Serwer Status Connected dh cbe ganz Add camera with default recognition settings first You will be able to edit it and add more cameras at later time Note that by default recognition is turned on and as soon as software will start receiving video CPU load will increase a lot Camera Setup Wizard Camera Configuration Define recogition properties for selected camera Camera Title Country Code s Deviation Angle Histogram Equalization Mask Bitmap Maximum Character Height Minimum Character Height NY 1 800 422 6707 CA 1 877 407 9555 e Mexico City 52 55 5280 4660 CBC AMERICAS Corp www ganzsecurity com 2014 CBC AMERICAS Corp All Rights Reserved CGOANZ Ganz ZNS LPR User Manual Security Solutions Right click on the camera name you just added and select Camera Setup Wizard again HE Camera Setup Wizard Camera Configuration Define recogition properties for2. 800 422 6707 CA 1 877 407 9555 e Mexico City 52 55 5280 4660 CBC AMERICAS Corp www ganzsecurity com 2014 CBC AMERICAS Corp All Rights Reserved GANZ Ganz ZNS LPR User Manual Security Solutions Deviation Angle This parameter describes expected amount of variation in number plate position relative to horizontal level Minimizing deviation angle improves recognition performance since less data has to be processed It is best used in combination with Rotation Angle parameter which sets constant adjustment angle that is applied to picture to make it appear as horizontally levelled to recognition engine Deviation parameter can be used more efficiently from this point Shown with solid green line on preview Smaller deviation angle less load Histogram Equalization This controls whether the contrast adjustment pre processing should be applied Increases CPU load and recognition precision Please leave it as False Mask Bitmap Not implemented in current version Minimum Maximum Character Height Minimal and maximal expected visual size of characters on license plate as it appears in video These parameters are represented with orange lines in visual configuration Plate colour schema Instructs LPR to look for number plates with either dark characters on bright background or bright characters on dark background Plate Presence Time ms To be detected number plates should be seen in at least half of frames d
3. Sample logging set LOGPATH c cmd test log echo SDATE S STIME S Received arguments gt gt SLOGPATHS rem Set variables set CAMERA 1 set TRIGGERED PLATE 2 set TAG 3 rem Path of an optional file to log actions rem Remove quotes from arguments set CAMERA CAMERA set TRIGGERED PLATE TRIGGERED PLATE set TAG STAG rem Perform conditional action depending on received arguments if I STAG rem Action to perform if Tag is empty echo Opening gate for STRIGGERED PLATES gt gt SLOGPATH OpenGate exe else if I STAG alert rem Action to perform if Tag equals to alert echo Alert for STRIGGERED PLATES gt gt SLOGPATH ShowAlert exe else rem Can perform default action here echo Unknown action STAG for STRIGGERED PLATE gt gt SLOGPATHS rem Perform constant action not depending on received arguments echo gt gt SLOGPATHS GANZ NY 1 800 422 6707 CA 1 877 407 9555 e Mexico City 52 55 5280 4660 CBC AMERICAS Corp www ganzsecurity com 2014 CBC AMERICAS Corp All Rights Reserved GANZ Ganz ZNS LPR User Manual Security Solutions External Database Accounting MySQL Generally we don t recommend using MySQL database due to its poor performance and provide this example just for its popularity MSSQL server will perform noticeably better Assuming you already have working MySQL server configured database server configuration is out o
4. CGOANZ Ganz ZNS LPR User Manual Security Solutions ZNS LPR Manual GANZ CBCGROUP NY 1 800 422 6707 CA 1 877 407 9555 e Mexico City 52 55 5280 4660 CBC AMERICAS Corp www ganzsecurity com 2014 CBC AMERICAS Corp All Rights Reserved CGOANZ Ganz ZNS LPR User Manual Security Solutions Quick Start About camera setup Recognition engine options Example timing fps settings Program options White lists External database accounting Quick Start 1 Install ZNS LPR software Before starting Ganz ZNS LPR installation please note that ZNS LPR requires ZNS Client Kit API of at least 1 8 3 version to be installed on same PC It is a part of the ZNS Suite and in case you don t have ZNS Client or Server applications installed please do so prior to installing ZNS LPR Microsoft NET Framework 3 5 is required as well If you don t have it on your system it can be found at http msdn microsoft com en us netframework cc378097 aspx Note that ZNS LPR requires a lot of processing power make sure to use a powerful computer for running it ix ZNS NYR License Plate Recognition 1 9 0 Setup IOl x Welcome to the 2NS NWR License Plate Recognition 1 9 0 Setup Wizard The Setup Wizard will install ZWS AVR License Plate Recognition 1 9 0 on your computer Click Next ta continue or Cancel to exit the Setup Wizard Back Cancel G20 2 GANZ CBCGROUP NY 1 800 422 6707 CA 1 877 407 9555 Mexico Cit
5. Minimal recommended recognition frame rate for not moving car is 6 Minimal recommended parameters for slowly moving plates is 12 Automatic options of camera and lens must be disabled for example auto iris auto focus back light compensation auto shaking compensation and others The shutter timing should be set to acceptable minimum to prevent blurring Shutter speed value is determined by object speed and the angle at which the object is viewed A car going at the speed of 60 km h covers about 15 cm over 0 01 second An optimal setting for most situations is 1 600 The camera should be mounted in such a way that the horizontal lines of the image and horizontal edges of the plate are more or less parallel The software detects and recognizes the license plates of cars moving towards or away from the camera The corresponding horizontal angle should be within 20 20 degrees and vertical angle 40 40 degrees It is enough with natural lighting of a sunny day However it is strongly recommended to use additional light sources for example regular street road lamp and or IR illumination 300lux at night time Set camera for constant recording and turn auto shutter on then set iris in an almost closed position Record some moving cars after check the quality of recorded plates inside VMS archive If license number plates are blurred then open iris for a bit and check new recordings Repeat the procedure until the picture quality will be goo
6. angle The scan rectangle defines the active area within the image where recognition takes place Area outside rectangle will not be processed On the image below we show the scan rectangle which covers reasonable range of possible license plate positions Effects CPU load recognition precision and speed Smaller rectangle less load Example timing fps settings Though these settings highly depend on video stream and camera configuration we provide some examples to give your idea about possible values for few kinds of situations Do not take this as a valid setting for your setup Far camera zooming at road crossing at moderate angle relative to camera side speed is average cars moving at average speed Plate Presence Time 350ms Recognition FPS 7 Camera zooming at road crossing at low angle relative to camera side speed is low cars moving at low to average speed Plate Presence Time 750ms Recognition FPS 7 Camera positioned on ceiling inside parking looking at parking entrance in front of car moving direction no angle cars moving at slow speed Plate Presence Time 1000ms Recognition FPS 3 Camera targeted along straight road at moderate angle cars moving at average to high speed Plate Presence Time 200ms Recognition FPS 15 GANZ NY 1 800 422 6707 CA 1 877 407 9555 e Mexico City 52 55 5280 4660 CBC AMERICAS Corp www ganzsecurity com 2014 CBC AMERICAS Corp All Rights Reserved CGOANZ Ga
7. ble recognition This can also be toggled from camera context menu in structure pane When recognition is enabled 123 icon is displayed under video stream GANZ NY 1 800 422 6707 CA 1 877 407 9555 e Mexico City 52 55 5280 4660 CBC AMERICAS Corp www ganzsecurity com 2014 CBC AMERICAS Corp All Rights Reserved GANZ Ganz ZNS LPR User Manual Security Solutions Recognition FPS Desired processing rate of the video stream Analyzing more frames gives more reliable result but also consumes more CPU Good setting depends on quality of received video stream and on speed at which cars are moving If numbers are not seen very well on video or cars are moving fast it s recommended to increase this setting For 30 fos stream fine settings would be 7 or 15 fps for even omitting of excessive frames 30 2 15 15 fps every second frame analyzed 30 4 7 5 8 fps every fourth frame is analyzed Rotate Angle indicates whether the source image should be rotated by specified angle in degrees to be horizontally levelled Effects CPU consumption and recognition precision Shown with dotted green line on preview Save Image in Database this feature enables storage of snapshots in external database LPR can also store only information about frames where plate numbers were detected and retrieve them from DVR archive when necessary This requires video archiving enabled on DVR server More on database configuration below Scan Rect
8. d enough for human eye to recognize license plate s symbols Fix the iris in the last best position Camera resolution The use of analog IP camera with at least D1 resolution 768x494 NTSC or 752x582 PAL Recommended resolution is from 720p to 1080p 1280x720 to 1920x1080 Camera lens type and zoom setting Varifocal zoom lens with a maximum focal length of 80 mm or more is recommended General notes There are no universal recommendations for cameras lenses IR illumination settings All should be tuned for optimal recognition rates at place It is recommended to use the R illumination and electric light sources separately as electric lamps blind IR illumination and the recognition rate becomes lower Intense electric lights regular street road lamp with tree like lights are much better than the IR illumination For night recognition it is recommended to process the rear plate of the vehicle as it is illuminated by the tail lights and the camera is not glared by the flash of car s headlights
9. f the scope of this document for using it with ZNS LPR you will need to install MySQL ODBC 5 1 Driver available from MySQL website Example connection string for MySQL is found under Examples button You need to edit this string to give actual database name user and user password for ZNS LPR to be able to connect to DB and store data Database Setup Wizard i l xX Configure OLE DE Database Please enter connection sting for selected provider f you do not know corect connection string please refer to your database documentation Connection String Provider MSDATASHAPE Driver MySQL ODBC 5 1 Driver Serverslocalhost Database LPR User user Password psw GANZ NY 1 800 422 6707 CA 1 877 407 9555 e Mexico City 52 55 5280 4660 CBC AMERICAS Corp www ganzsecurity com 2014 CBC AMERICAS Corp All Rights Reserved ZNS LPR usage recommendations General advise General requirement for camera s configuration when using ZNS LPR it should be possible for human eye to recognize license plate s symbols in any frame Number plate should be seen in a frame minimum with 2x2 pixels per one square centimeter European number plate regular size is 52x11cm So a number plate should be seen in a frame as 104x22 pixels This means that 200x200pixels are recommended per square meter of viewing area As an example a video stream with 1920x1080 resolution So camera view for LPR should be up to 10 meters width and Smeters high
10. fy extemal database and SELECT command to obtain plate numbers for triggering S Frovider Microsoft Jet OLEDE 4 0 Data Source C ewcelfile xls Extended OLE DE database Properties Excel 0 HDR Yes IMEX 1 connection sting select from sheet 15 SQL SELECT command that retums plate numbers How often to refresh number s list Every minute Synchronize Now lt Back Cancel This is example contents of an MS Excel file First column contains triggering number plates Second optional column contains additional information about number plate which is referred to as a Triggered Plate Tag and can be supplied as command line argument TriggeredPlate Tag GANZ NY 1 800 422 6707 CA 1 877 407 9555 e Mexico City 52 55 5280 4660 CBC AMERICAS Corp www ganzsecurity com 2014 CBC AMERICAS Corp All Rights Reserved GANZ Ganz ZNS LPR User Manual Security Solutions You can check what number plates are currently triggering under Tools gt Trigger Plates menu Hi excelFile xls OpenOffice org Cale Oj x Qa n paska Bua Bcraska opmat Cepsuc MaHnble Haiti 14 kS Buo A NVZ291 GHA230 ANF030 BAT443 AAAO01 Upon trigger an external program or wrapping command script is called Specify a path to program to be executed upon trigger in Start program field Arguments to be passed to external program are filled in Arguments field Besides constant arguments you can supp
11. le unknown character at most 1 and for multiple unknown characters at least 0 for example searching for AB 3 will return plate numbers AB3 AB23 DDAB23 and AB12D12D3 while AB 3 will return AB23 and DDAB23 When you enter AB search is done for AB and entering A B will search for A B If you have a DVR archive available for the camera DVR archive radio button and playback controls after you check it will be available Using DVR archive and selecting recognized license plate from a list on the right will seek archived stream to a time when plate was recognized draw corresponding frame of the stream and pause it Red highlighting border will also be drawn to show where license plate was found From this point you will be able to playback video from archive to see vehicle passing camera on video Program Options General options Plate absence time given in seconds defines how long license plate should be out of view to get recognized again This is useful for example if parked cars might appear inside recognition area A person walking by and covering plate for few seconds will not trigger re recognition Here you can define characters that will be considered similar It is used for investigation search and trigger matching Third Log file tab is used to set amount of logging performed limit log file size and set maximum amount of log files as well as view current log At the moment logging is used fo
12. ly following dynamic arguments they will be replaced with actual values to external program executed upon trigger Server Name of a server where LP was found Camera Camera where LP was found RecognizedPlate LP that was recognized TriggeredPlate Source LP that recognized plate was matched against TriggeredPlateTag Tag corresponding to source LP that recognized plate was matched against If you need to execute multiple or conditional commands upon trigger you can use windows command script as a wrapper Consider example of basic command script usage below software is configured to execute command script upon trigger with following arguments Camera TriggeredPlate TriggeredPlateTag Script will evaluate 3rd parameter a TriggeredPlateTag to determine what action to perform and can also forward some additional information to external programs called Trigger Setup Wizard s x Triggered Actions You can select action that will be perfomed when one of numbers reconized Lt Famn DEEL M Show with different color green Start program C wrap cmd HCamera S TriggeredPlate S Triggered Plate Tag GANZ NY 1 800 422 6707 CA 1 877 407 9555 e Mexico City 52 55 5280 4660 CBC AMERICAS Corp www ganzsecurity com 2014 CBC AMERICAS Corp All Rights Reserved GANZ Ganz ZNS LPR User Manual Security Solutions Example contents of wrap cmd file rem
13. nz ZNS LPR User Manual Security Solutions Investigation Investigation window is used to examine and search through recognition data Upper left part contains search related options and lower left part displays a snapshot of recognized plate if you have enabled storing of snapshots to database Search for a recognized license plate is done with a pattern entering AB to Plate Number field will return license plates ABOO1 001AB and 01ABO1 select camera name from a drop box to search only for license plates recognized by given camera Specifying country code will return only numbers belonging to specified country if any Investigation 09 05 2011 10 36 38 09 05 2011 10 36 35 09 05 2011 10 38 32 09 05 2011 10 36 30 Today ThisWeek This Month 09 05 2011 10 36 27 09 05 2011 10 38 21 e Saved image DVR Archive Records found 28117 a 09 05 2011 10 38 12 Plate RF12345 Server localhost Country Code GB Camera new demo Confidence Level Excellent Time 09 05 2011 10 38 32 10 38 32 99 09 2011 10 37 33 09 05 2011 10 37 50 09 05 4011 10 37 49 09 05 2011 10 37 40 09 05 2011 10 37 15 ODO GANZ CBCGROUP NY 1 800 422 6707 CA 1 877 407 9555 e Mexico City 52 55 5280 4660 CBC AMERICAS Corp www ganzsecurity com 2014 CBC AMERICAS Corp All Rights Reserved GANZ Ganz ZNS LPR User Manual Security Solutions You can also use special characters in search query for sing
14. r debugging purposes only and most users can ignore it SSS Sixt Plate absence timeout seconds 30 History panel rows 50 NY 1 800 422 6707 CA 1 877 407 9555 e Mexico City 52 55 5280 4660 CBC AMERICAS Corp www ganzsecurity com 2014 CBC AMERICAS Corp All Rights Reserved GANZ Ganz ZNS LPR User Manual Security Solutions Black White lists ZNS LPR allows you to set up an automatic control point It requires a source of allowed plate numbers which can be any Microsoft OLE DB compatible source and external program for opening gate for example to run when recognized LP number matches one of numbers found in database Recognition trigger configuration is found under Tools gt Trigger Setup screenshot on the left shows LPR configured to use a Microsoft Excel file for retrieving triggering plate numbers First field OLE DB connection string contains instructions on what source to use for reading triggering numbers Second field SQL SELECT command contains instructions on how to retrieve required data from specified source Drop box is for selecting delay between re reading data source Note that similar characters have effect here as well if you have O and 0 set as similar characters both 000 and OOO number plates will match 000 given in allowed plate number list Characters are not case sensitive Recognition Trigger Setup Wizard x Recognition Trigger Setup 7 Here You can speci
15. s well Recognition engine options and parameters Camera Title cannot be changed in current version Contrast Level expected contrast of License plate on input images e Medium suitable for most cases LPR algorithm is adaptive to different lighting conditions e Low low contrast e High high contrast Country Code the ISO 3166 two character country code where LP was issued Latvia LV Germany DE USA US GANZ NY 1 800 422 6707 CA 1 877 407 9555 e Mexico City 52 55 5280 4660 CBC AMERICAS Corp www ganzsecurity com 2014 CBC AMERICAS Corp All Rights Reserved GANZ Security Solutions Number plates from following countries are supported Ganz ZNS LPR User Manual e Argentina AR Kuwait KW e Australia AU Latvia LV e Austria AT Lithuania LT e Belgium BE Malaysia MY e Bosnia and Herzegovina BA New Zealand NZ e Brazil BR Netherlands NL e Brunei BN Poland PL e Bulgaria BG Portugal PT e Chile CL Romania RO e Columbia CO Russia RU e Czech Republic CZ Serbia RS e Denmark DK Singapore SG e Estonia EE Slovakia SK e Finland FN Spain ES e France FR Sweden SE e Germany DE Switzerland CH e Croatia HR Taiwan TN e Hungary HU Turkey TR e India IN Ukraine UA e Indonesia ID United Kingdom GB e Israel IL United States US e Italy IT Vietnam VN More countries will be added in future GANZ NY 1
16. selected camera Camera Title demo Contrast Level Medium normal Country Code s Deviation Angle 30 Histogram Equalization False Mask Bitmap Maximum Character Height 64 Minimum Character Height 8 Minimum Confidence Level Good Plate Color Schema Dark letters on light background Plate Presence Time ms 1000 Precise Mode Normal Recognition Enabled False Recognition FPS 10 Rotate Angle Save Image In Database True Scan Rectangle wa ese iscsi zone Settings that are changed from default values are marked with bold in camera setup wizard You can use View button to visualize recognition settings This feature requires video archive to be enabled on ZNS server 4 Click Next and finish camera configuration License plate recognition takes a few seconds If calibration was correct software will start recognizing license plate numbers and you will see them appearing in a recent number plates list Clicking on any number from the recent list will open investigation window positioned on clicked number Investigation history window is used to browse all recognized number plates and has an extended event viewer with search option G20 GANZ CBCGROUP NY 1 800 422 6707 CA 1 877 407 9555 e Mexico City 52 55 5280 4660 CBC AMERICAS Corp www ganzsecurity com 2014 CBC AMERICAS Corp All Rights Reserved GANZ Ganz ZNS LPR User Manual Security Solutions About camera setup Cameras with faster shut
17. ter soeed are recommended even if you are receiving quality 1080p video stream at 30fps with low shutter soeed moving objects on single frames will be blurred despite they look clear to human eye on video playback Shutter soeeds above 1 1000s are preferred Physical position of a camera also takes an important role in quality of recognition and amount of computer resources required for analysis Modern computers are effective in mathematic calculations and describe everything with equations and logic operations in turn describing and processing some abstract actions like reading characters using such methods is not an easy task In another words finding and reading text for a computer is a lot harder than for a human Due to this there s high demand on processing power for recognition engine Choosing a good place for a camera will give more confident results and will require less processing power Generally it is best to place a camera in front of expected vehicle movement direction to minimize relative side speed of license plate to camera This allows to shrink active recognition area and license plate will appear in view for a longer time which means more frames with visible license plate will be received by recognition engine for analysis Also having more time analysis can be done a bit slower saving CPU power If license plate number as it appears on video frame is not clearly readable by you recognition engine will not see it a
18. uring this time Increasing this value makes recognition more accurate but don t set it too high otherwise license plate numbers from faster moving cars will be ignored due to insufficient presence in view Setting this too low might cause number plates to be detected more than once if presence time is set to 200 ms and vehicle is moving by at slow speed during it s for example 700ms presence time there might be two successful recognitions 200ms each with minor difference in some single character Efficient setting also depends on FPS some examples can be found below For detecting numbers in short amount of time for example if cars are moving past camera at high speed Recognition FPS must be increased If recognition is running at 7 frames per second and Presence Time is set to 300 400ms frames per second recognition will only get 2 3 frames during this time and result will not be accurate If cars are in view for a short time decrease Plate Presence Time and increase Recognition FPS If cars are in view for longer time it s better to increase Plate Presence Time and reduce Recognition FPS if necessary Precise mode Possible values are PM_Normal for video mode and images with normal quality without noise and blurring PM_Mode 1 for noised and night images PM_Mode2z for noised and night images captured with motion blur effect PM_ Night for night images captured with IR illumination Recognition Enabled Enable Disa
19. y 52 55 5280 4660 CBC AMERICAS Corp www ganzsecurity com 2014 CBC AMERICAS Corp All Rights Reserved GANZ Ganz ZNS LPR User Manual Security Solutions 2 Activate software When ZNS LPR is started for the first time the Activation Wizard will appear to enter license key To get a trial key click Next and use Request Trial button to obtain trial license key Trial period lasts for 30 days Please note that only one trial license key is assigned per one public IP address this means you will be unable to get two trial keys in a local network with single public IP address Please contact support ganzsecurity com if you have any problems with LPR license keys DVRLPR Activation Wizard Product Activation Enter license key and select activation method License Key Request Trial Online Activation i Offline Activation Activation URL Activation Code 3 Configure software After the software is activated Server Configuration Wizard is started and you are asked to configure ZNS Server to use with ZNS LPR You can use ZNS LPR with multiple DVR servers nda server wizard x Server Properties Server Title Server F Address Specify localhost for local connection Server Part Leave empty for default value of 60554 User Name User Password IY Auto connect on start IY Auto reconnect on disconnection NY 1 800 422 6707 CA 1 877 407 9555 e Mexico City 52 55
Download Pdf Manuals
Related Search