User Manual for VIOSO BlackBox™ 2.0
Contents
1. 2 um 13 1 VisionRGB start 12 0 Teg 1 58 19 11 Motor SCPC options VERUS B uf Menor andan 1865 curar punt 13 2 VisionRGB runtime options O Presenter start options allow combination of the selected VisionRGB channel with another or all channels O Chose combination mode horizontal or vertical and device select the other channel by ID Y O The first listed VisionRGB channel has ID 0 the second 1 and so on Combination with the own channel ID has no effect O Enter 1 to combine all channels O Press Start to start playback or restart to apply changes User Manual for VIOSO Blackbox 2 0 9 GmbH 2011 Page 27 To configure the VisionRGB channels use the runtime options button while playback is running Changes made here taking effect immediately 5 RGE settings RGB settings Image channel 0 T Mode horiz sbined Defaults 14 1 select channel Position scaing 5 14 2 ET MEM B rlariz position Brightness ET MEM mode Horiz scaling Contrast vert position Black level 14 3 positioning and Capture width scaling Capture height Red gain Phase arcen na 1 4 4 color Blue gain Top 14 5 HEN Width areen offset Height Blue offset Select channel by ID to adjust only available in combined mode S2. be sure to avoid visible interference patterns User Manual for VIOSO Blackbox 2 0 1050 GmbH 2011 Page 20 5 3 Post calibration After calibration you can modify the created compound display Once you have created it it appears in the output device list The channel control window 1 4 provides you with functions available for manipulating multi projector calibration The geometric adjustment panel 11 1 e Change LoD LevelOfDetail to adjust between pixel per pixel mapping and surface estimation color adjustment panel 1 1 2 e The slider black level enables you to match the overlapping projector zones to the non overlapping edge blending adjustment 1 1 3 See Edge blending5 3 1 To fit the overlapping zones of the projection you can set Edge blending parameters virtual canvas 1 1 4 e Change size position and other geometric parameters of the output see chapter 4 Warping and the presentation options 11 5 See 3 3 2 e Enable disable components to be used in the current calibration set geometric correction and color correction working area no 1 presenter free Aspect B 2 border AA smooth eoe conechon Blank B Coe ection tect image 11 1 11 2 11 3 edge 11 4 virtual 11 5 enable disable set LoD change blending canvas parts of calibration User Manual for VIOSO Blackbox 2 0 VIOSO GmbH 2011 Page 21 5 3 1 Edge blending The edge blending parameters
3. Datar ath VisionRGB E2 02 Logitech QuickCam Pro 9000 Logit 2ch QuickCam Pro 9000 Decklink Video Capture Dec dink Video Capture Eye Capture Device 1 simple surface Calibrate each single display separately using the multi projector setup twice User Manual for VIOSO Blackbox 2 0 VIOSO GmbH 2011 Page 4 2 The calibration will create a compound display in the output device list 4 3 called camera based Repeat this for the other displays you want to stack with the first one 3 After calibrating all displays activate one distinct output channel 1 3 for each camera based display but with the same source from the input device list 4 2 for all camera based displays by clicking the Start 4 1 button working area 1 presenter working area 1 presenter local chn 1 Stopped ocal chn 2 Stopped local chn 3 Stopped local chn 4 Stopped local chn 5 Stopped ocal chn 1 local chn 2 Stopped chn 3 Stopped Source Target Source Target Files 1 01 A 0 01 Display 1 VSCFC21 al Files li 1 0 Files 0 01 Display 1 5 21 2 0 batapan visionr 2 01 ee 2 01 va wnao tz 01 0 11 Display 3 SANDE2D 112 Datapath 02 2 1 4 7577 12 1 Datapath Visio GB E2 02 0 21 Display 4 SANDE2B 2 2 2 Logitech Quickan Pro 0 A 2 31 De klink
4. Video Capt ee 7 2 31 Decklink Video Capture 4 13 11 camera based 2 41 uEye Capture Device 1 same 12 41 uEye Capture Device 1 same VC 0 01 Display 1_ VSCFC21 Oor 0 01 Display 1 VSCFC21Y MZ each display gets an own channel assigned hestart When all displays are activated with the same source you receive a image on the canvas which is not stacked yet 4 Select the channel with the base calibration you want to use for your stacking your main output channel 1 3 and click the same VC button Confirm with OK on the Pop Up Window This calibration is now aligned on all other output channels 1 3 Same VC Confirm with OK cnn 4 DAS erae list Opticns Pa Pa PR same Your displays now are stacked pixel precise User Manual for VIOSO Blackbox 2 0 VIOSO GmbH 2011 Page 5 5 f your VC does not have the desired shape you can adjust this shape manually First stop the playback on all output channels 1 3 except your main output channel 1 3 Then adjust the geometry of the VC in the virtual canvas 11 4 window of your main output channel 1 3 to the needed shape Start 4 1 the other output channels 1 3 again and use the same VC button on your main output channel 1 3 so the other output channels 1 3 adopt the manually changed VC This procedure takes effect on a
5. that the projection screen is reduced to a non intermittent uniform screen e g leave out surroundings of a projection screen mask holes folds etc User Manual for VIOSO Blackbox 2 0 VIOSO GmbH 2011 Page 3 c Adjusting noise filter e Every camera capturing comes with a decent noise that has be filtered For this task a line pattern is projected and captured e Use the external camera stream window be maximized for getting an optimal feedback to evaluate Adjust the line with so that i lines are continuous without interrupts and holes ii image no line is affected in its colour due to a mismatch between the camera resolution and the line width iii the lines are as thin as possible but clearly and flawless viewable Inspect the black white image which resembles the filtering and adjust filter threshold so that all lines are continuous without interrupts and holes Hint The initial settings are in most of the cases adequate e Hint The initial settings in most of the cases adequate Now the initial camera setup is done Subsequent calibrations can be done based on this setup and thus be more efficient 1 4 Calibration The calibration contains all steps for setting up a multiprojection with the help of a camera Some tasks of the calibration have to be done in the previous described initial setup Start the camera based multiprojector calibration b For the first calibration all
6. ANCED CALIBRATION STEPS AT INTERACTION LEVEL FULL 16 5 2 1 Important hints and considerations sessi eese essen nnne nnn nna annes snas n ness s aa assess saa assess naa 16 LP MEME CR 17 5 2 3 Manual camera brightness adjustment during calibration eese 18 5 2 4 Manual camera interference level adjustment during calibration eese 19 5 3 FO SUE TON 20 SoL o I Me oem 21 v MEME CSCIC CON OO OND crm 21 5 4 LOAD SAVE MULTI PROJECTOR SETUPS nennen nnne 20 6 MULTIPLE PROJECTOR SETUP FOR STACKED PROJECTORS 23 6 1 STACKED PROJECTION WITH SINGLE 15 23 6 2 COMBINING EDGE BLENDING AND STACKING nnne nnne nnns 25 CONICNI PLAYTBBLR ronianer 26 DVI INPUT DEVICES VISION RGB PRO 26 7 2 OTHER CAPTURE SOURCES 27 3 NE 27 8 PROJECTION EXAMPLES WITH INCORRECT CAMERA SETTINGS 28 5 CONTACT INFORMATION Z HELP 0 30 Page 1 1 in a nutshell Best practise for multiple projector setups This chapter summarizes all necessary considerations ad caveats when doing a automatic camera based multiprojector setup For more details about the usage of VIOSO Blackbox please refer to the chapte
7. User Manual for VIOSO BlackBox 2 0 00 Table of Contents 1 INANUTSHELL BEST PRACTISE FOR MULTIPLE PROJECTOR SETUPS 1 1 1 INITIAL OPERATION OF THE PROJECTORS ON THE PC nnn 1 1 2 ALIGNING PROJECTORS ON THE SCREEN eren nennen tnnt tnt nnn 1 1 3 go RA 2 Lod 9 2 2 1 4 gom We m 3 1 5 4 E ore ran 5 2 1 GENERAL PROGRAM APPEARANGE caedis nbi E pibe bte bebat 5 2 2 DISPLAY CONFIGURATOR datar 6 2 3 DEVICE INFO WIN DO Wi D o NNNM LK Po DN 8 3 1 dy TR 8 3 2 OUTPUT 13 oc 8 33 AVUSTING THE DUET 9 10 4 1 ir n 11 5 MULTIPLE PROJECTOR SETUP FOR EDGE BLENDED OUTPUT 12 5 1 PROCEED CALIBRATION STEPS AT INTERACTION LEVEL REDUCED ssseeennennnnnennnnennnnns 13 NE 13 5 1 2 Align your camera with the projection 14 1 3 Adjust the TeSUITS Edeka FERMO PE odes ait dad uera RO Ve FERRO DE deus UE 15 5 2 ADV
8. activated option vignette effect filter iii X If the blending between the projectors does fit Do a calibration with activated options contour blending and HQ blending User Manual for VIOSO Blackbox 2 0 1050 GmbH 2011 Page 5 2 Overview In this chapter we describe the program components of VIOSO BlackBox To get instant presentation results please skip this chapter and continue with the next chapter Getting started 2 1 General program appearance 1 1 functions 1 3 output channels 1 4 channel controls window 1 2 main menu TT 1 5 text console With the functions window 1 1 you can create and manage calibration set s A calibration contains all settings that are used to create output on one single or several compound displays The output channels window 1 3 contains a tab for each available channel A channel represents one single or compound display and is assigned to a distinct tab which contains all appropriate channel controls 1 4 In the generic text console 1 5 status messages reports etc are displayed There are two more views available The display configurator and the device info window These can be opened the main menu item View User Manual for VIOSO Blackbox 2 0 VIOSO GmbH 2011 Page 6 2 2 Display configurator The display configurator supports activating deactivating displays and setting its properti
9. can go on clicking next Now the measuring process starts The process of sampling the entire surface takes approximately 1 minutes 8 1 open capture device property sheet Correct camera image Incorrect camera image Incorrect camera image IMPORTANT NOTE The projector and camera must not be moved while calibration is in progress indicated by the output of moving test patterns from the projector In addition the measurement process must not be interrupted by external influences e g changes in ambient light persons between the projector and projection surface User Manual for VIOSO Blackbox 2 0 VIC GmbH 2011 Page 15 5 1 3 Adjust the calibration results Before the calibration assistant closes you see an overview dialog to monitor the results The settings established at this point are retained To change the values for contrast and colour balance use the slide controls Click next to close calibration assistant EX contrast and color slider refers to the calibrated images nitor Skani nitor Stan nm Enable disable calibration components AA border adds a small black frame around the outer VC to improve border appearance AA smooth adds a bicubic subpixel filter to the whole screen to improve mapping gt 355 Common inform gt 356 Common inform gt 357 Common information from agent AUTOBRIGHT MC 876 Agent has been The calibration is now read
10. ct the first Channel Highlight input 4 2 and output devices 4 2 and click Start 4 1 in the channel control window 4 1 Start working area 1 presenter Channel 0 Stopped Channel 1 Stopped Channel 2 Stopped Channel 3 Stopped Source Target Sasat 10 01 PnP Monitor Standard IVM5341 Direct warp Onions 10 11 PnP Monitor Standard VSCFC21 Restart B Gener comection Blank Stop B Soler conection B eine netric ad ustment virt canvas 4 2 input 4 3 output 4 4 Stop 4 5 Restart device list device list A test image is projected onto your display To stop projecting click Stop 4 4 3 1 input devices The input device list 4 2 contains all current available input devices that can be used as content Source e Files a generic file player for instant playback of images and videos e all capture devices like camera s framegrabber cards tv cards etc all desktop monitors for desktop grabbing mode Change selection via double click or click on Restart 4 5 3 2 output devices The output device list 4 3 contains all current available output devices that can be used as targets for displaying content 1 all connected and activated displays previous calibrated display compounds 3 previous configured split screen tiles Change selection via double click or click on Restart 4 5 Hint Desktop monitors that are currently g
11. elect combination mode only available in combined mode Adjust position and scale of captured image Trim image to get rid of borders and combine images seamlessly Adjust color of channels to match 7 2 Other capture sources All other input devices are captured via DirectShow input filters So every camera frame grabber or tv card detected by your system is working Our capture engine is optimized for DeckLink devices and p Eye industrial cameras They support HDMI input up to 1080p HD video 7 3 FilePlayer If you need to play back a videos or images from hard drive you can use the file player This function is only for testing purposes The list is not saved with the settings file If you need extended media playback use our recommended solution Wings VIOSO User Manual for VIOSO Blackbox 2 0 1050 GmbH 2011 Page 28 8 Projection Examples with Incorrect Camera Settings A brilliant error free projection is the ideal result Ideal situation Best possible Optimised camera rendering of the settings reduced projected image ambient light camera captures projection completely Some typical camera adjustment errors are listed below Consult these examples if your results are not satisfactory incorrect camera settings are usually the cause Incorrect shutter Contrast is too speed setting low In this example the shutter speed is set to 1 2000 Widescreen on The The image width aspect ratio
12. es Open it main menu View show display config 2 1 refresh 2 2 open Windows 2 3 apply device lists display properties warnings working area no 1 display config 53 2 4 active displays dual view clesktop Refresh apply e e Ld V DDM a vailable NO and resolution change to gt Change displays to deactivate 1 panel display PnP Monitor Star IVM5341 Pos 0 0 1600x1200 32 SuHz 2 5 set alignment 3 panel display PnP Monitor Standard VSCFC21 Pos 1600 0 192 1080 32 60Hz 1 set primary position resolution Standard 2 6 de activate selected display current inactive displays 2 display Pos 3520 0 1024x768 32 60Hz 2 7 inactive displays 4 display Pos 0 0 1920 1080 32 60Hz position Standard i resolution Standard User Manual for VIOSO Blackbox 2 0 VIOSO GmbH 2011 Page 7 The device info view shows extended information about installed capture devices and monitor devices It can be opened via main menu item show device info working area 1 device info kaba Helligkeit Kontrast Farbton Saettigung Schaerfe DISPLAY3 User Manual for VIOSO Blackbox 2 0 GmbH 2011 Page 8 3 Getting started To show content on your connected displays s open VIOSO BlackBox Sele
13. from agent DX Projektor 500 500 Agent has b User Manual for VIOSO Blackbox 2 0 1050 GmbH 2011 Page 19 5 2 4 Manual camera interference level adjustment during calibration In this part of advanced calibration process you can adjust the interference level used for rastering the test patterns The objective is to obtain continuous lines with no visible camera interference see illustration below Experiment with the controls in order to achieve optimum results Live image including predefined mask working area no 1 calibration Lines are too thin and not continuously visible il B Lines are too thick and no longer visible at the top edge So called interference is n visible in the centre of the image The level is set too high mde gt gt 198 Common information from agent DSH 520 520 Agent has been acti gt 199 Common information from agent 495 Agent has been terminated lt 0 AL um Bemir nma gt r P n Note regarding the Line Width control The line width should primarily be selected so that the lines are continuous However thin lines are preferable since thick lines are related to the risk of excessive camera brightness Note regarding the Level Control Set the level control so that all lines are easily visible at the edges and in the corners of the test image striped pattern However
14. help you to fit the overlapping zones This leads to a alpha blending curve o plateau alpha value kept by 1 o gradient Alpha blending curve slope of blending section o gamma bend of the blending section 5 3 2 Presentation options Presentation option allow you to change the general appearance of your projection The available options enable disable virtual canvas manipulation direct projector warping geometric correction colour correction Free aspect ratio do not adds a letterbox around content AA border adds a small black frame around the outer VC to improve border appearance AA smooth adds a bicubic subpixel filter to the whole screen to improve mapping Blank switches projection to black test image shows test image 121 User Manual for VIOSO Blackbox 2 0 1050 GmbH 2011 Page 2 5 4 Load save Multi Projector setups Use functions view 1 1 or main menu to access you recent calibrations or save current calibration sets 12 1 load a pixel 0 working area 1 functions 00 displacement map calibration behaviour 9 m 12 1 load a settings mult single scattering round cave file interaction level full 24 12 1 load a binary raw settings file calibration set service load load array save birary Save array ss correction tures growing 12 1 deletes current calibrati
15. ightness or the projector that projects on the darkest area on the screen Basic Settings Positioning of the camera and adjusting zoom and focus e Seinteraction level many of the Blackbox Software e Start the multi calibration assistant e Select projectors and one camera select the geometric correction method simple surface or any surface and proceed to the next step of the assistant Setthe camera to the sweet spot position where the main audience resides Choose camera resolution that is natively supported by the camera to avoid loss from scaling The lower the frame rate of the camera the more time the calibration procedure will take The higher the resolution the more accurate and thus better the edge blending will be e Adjust the camera using the projected checkerboard pattern so that i the complete projection screen is captured by the camera 1 the projection is maximizes within the captured image e Focus the camera to the projector s image plane For achieving good results probably exposure and white balancing has to be adjusted as well Use the external camera stream window can be maximized for getting an optimal feedback to evaluate e Finish and return to the device selection b Setting a camera mask e Mask areas of the camera image that may interfere with the projected testing pattern e g external lights reflecting areas Whenusing the simple surface correction Mask areas so
16. ints x axis decreased the amount of vertical control points y axis increased the amount of vertical control points y axis presentation view IMPORTANT NOTE Using camera based calibration set you will not be able to use direct warping on projector The complete warping functions are still available in the virtual canvas view User Manual for VIOSO Blackbox 2 0 1050 GmbH 2011 Page 12 5 Multiple projector setup for edge blended output To use overlapping multiple projectors as one single screen you have to perform a camera based calibration first This will create a compound display Access the functions window select as interaction level 6 2 reduced and click multi 6 1 to start the assistant for the camera based multi projector setup 6 1 start multiple 6 2 choose projector setup interaction level p fs working area no 1 functions calibration behaviour multi single scattering round cave interaction level full calibration set service interaction leve Automatic brightness and line geometry adjustment Manual brightness and line geometry adjustment Minimal Only for recurrent calibrations to reinitialize them Less Automatic camera and projector detection BETA state User Manual for VIOSO Blackbox 2 0 1050 GmbH 2011 Page 3 5 1 Proceed calibration steps at interaction level reduced The calibration assistant wil
17. l guide you through the calibration process of 050 BlackBox 5 1 1 Select your hardware In device selection select the projector s you want to join If you choose more than one projector a compound display from these devices is created Select the camera by clicking on it Click next in order to proceed with calibration working area no 1 calibration dual view desktop PnP Manitor 5 PnP Monitor Star Select desired live image input device geometric COMES simple surface initial content aspect ratio additional LNS fill absent bubbles beyond camera view geometric scan size 9 1 6 HO blending contour blending 1 2 E AWE camera vignette effect filter Note All automatic camera settings have to be deactivated or set to manual i e e Automatic focus off e Automatic white balance AWB off e Aperture manual set e Shutter speed manual set e Shutter speed set to the lowest value e g 1 50 User Manual for VIOSO Blackbox 2 0 1050 GmbH 2011 Page 14 Configure the camera So that all of the surface being corrected is visible and the entire projection is captured by the camera The assistant helps you to configure your camera settings 8 1 and to define cam masks to ignore regions of noise which may lead to misclassification during scan For more information on masks see section 5 2 2 If camera is proper aligned you
18. ll connected projectors 6 2 Combining edge blending and stacking 1 Execute a multi calibration as described in chapter 4 For each multi display used in the stacking an own calibration must be accomplished working area no 1 calibration working area 1 calibration Select desired image output devices multi select Display 3 SANDE2D Displav Sauco pla S Display 4 SANDE2B luisplay 5 20 Disp ANDE2D g Display 6 SANDE2D ee E A A 91 Select desired live image inpu device Datapath VisionRGB E2 02 Logitech QuickCam Pro 9000 Decklink Video Capture m Capture Device 1 simple surface tent 1 free beyond camera view a geometric 3 0 scan size scan Size fix line pattern input device Datapath VisionRGB 2 02 Logitech QuickCam Pro 9000 Decklink Video Cz pture Calibrate each multi display separately 2 Follow the steps 2 to 5 from chapter 5 1 User Manual for VIOSO Blackbox 2 0 1050 GmbH 2011 Page 26 Your VIOSO BlackBox offers various content playback options This chapter covers connectivity and shows how to deal with your given playback source Use the build in DVI Capture card to grab video from other computers These images can be combined to a single image and played on a multi projector set B gt crave
19. n the projected images complete on the surface try not to leave out pixel unused and try to align the edges of the images to a common outline Use optical adjustments zooming lens shift but never digital tools for that The overlap of the edges must be 1596 minimum ideal projector alignment Try to align projectors of similar output and age The more the aligned projectors differ the bigger the overlap area must be for realizing an invisible softedge Avoid different projector sizes and misaligned projector outlines Areas where a smaller image intersects a bigger are not blended with good quality User Manual for VIOSO Blackbox 2 0 1050 GmbH 2011 Page 2 1 3 Camera Initial setup 1 3 1 a Basic Settings Every means for any automatic image adjustment during the camera service must be disabled Check this by covering the lens and remove the cover quickly if the camera images are self adjusting to the different conditions there are still automatisms to be deactivated Check at least the following typical camera settings e automatic focus disable e automatic white balancing disable automatic exposure shutter time disable Deactivate any additional features like face tracking sharpness enhancement back light compensation etc The sensitivity of the camera should be adjusted regarding the projector that resembles the lowest brightness on the screen either the projector with the lowest br
20. ng a retry make sure that all requirements regarding the setup of the projectors and the camera are met without exception see above d There are some typical failures that should be avoided e Choosing simple surface as the wrong calibration method Although the simple surface method generates the most appealing output there are clear limitations of this method It cannot be applied to complex surfaces The amount of complexity that this method can cope with is dependent from a vast variety of factors so it should applied only to real flat and slightly curved screens e The test patterns are not clearly visible ant thus capable of being differentiated This may be because of a minor quality or misadjusted camera There are external influences that disturb the measuring process All disturbing factors like ambient light reflection movements and vibration of screen and or camera must reduced or eliminated e Additional hints for solving issues of the simple surface method e lf the general projector alignment fails on a plain an even screen take a closer look at the geometric scan size factor When the circle pattern is displayed set the value to an amount that is entirely recognized as green dots e lf there are misalignments in the edge blending area i Do a calibration with the activated option additional LNS i When there are dark durroundings or frames on the projection screen do a calibration with the
21. nnot be used Metal and glass surfaces are also unsuitable e Ambient light must be reduced a minimum The correction effect becomes more pronounced as ambient light is reduced User Manual for VIOSO Blackbox 2 0 1050 GmbH 2011 Page 17 5 2 2 Masks In order to improve calibration results you can define camera masks for regions of noise spotlights obstacles specular surfaces These regions may lead to misclassifications during scan so they were ignored in creating the output You can start drawing with left click into the Live image emeuselefbtomask lt mouse Freehand drawings freehand drawing working area no 1 calibration 1 i HN ys IL NBN T gp n 2 7 H8 M NN DVSD 25 720x576 25 0 Fps Adjust 185 Common information from agent 433 Agent has been terminated lt formation from agent 44 as User Manual for VIOSO Blackbox 2 0 VIOSO GmbH 2011 Page 18 5 2 3 Manual camera brightness adjustment during calibration During the calibration process you are asked to manually adjust the brightness using the corresponding control The colour of the surface visible in the camera image must be optimised for colour rendering that is as realistic as possible not too dark or too bright Live image for instant feedback Avoid a bad camera image Try to get a more realistic image of the surface 95 Common information
22. of the is distorted camera does not match the aspect ratio of the projector User Manual for VIOSO Blackbox 2 0 VIOSO GmbH 2011 Page 29 User Manual for VIOSO Blackbox 2 0 Auto focus on The Patterns similar camera automatically a mosaic adjusts the focus grainy frayed multiple times during edge calibration Automatic white Image Is too balance AWB on The bright Camera automatically adjusts the aperture multiple times during calibration Automatic exposure Regular rastered The camera image errors automatically adjusts the sensitivity of the image sensor multiple times during calibration Camera image is out Random image of focus manual focus distortion not set to projection missing parts of surface the image GmbH 2011 Page 0 9 Contact Information Help Helpful information and answers related the ViIOSO BlackBox Software from VIOSO are available at www vioso com You will also find the following e Contact information e E mail support e Updates e Help with activation FAQ based on questions from other users Note We encourage you to register at the user forum as soon as possible www forum vioso com User Manual for VIOSO Blackbox 2 0 1050 GmbH 2011
23. om options v Warping On projector on projector see 4 1 Options available via right click on drag area e grid size X Y Increase and decrease number of grid points for manual distortion e interpolation and extrapolation method Toggle between linear and cubic interpolation cubic is for projection on curved surfaces e Reset Resets all grid points to its initial positions If there is a camera based correction active the recognized settings are restored e Full screen Resets all grid points to maximum e rotate to Rotates the projected image to fixed angels e mirror Flips the projected image vertically or horizontally Reset View Zoom The virtual canvas view can be zoomed and panned to allow better and more accurate positioning of the grid points Reset View resets all zooming and panning settings User Manual for VIOSO Blackbox 2 0 1050 GmbH 2011 Page 1 4 1 Direct projector warping Using the option on projector in context menu you are able to work directly on the projection surface with your mouse Activated grid points are shown as red dots on the projection area Drag them to match them your needs grid point O activated grid point smar ooje cune The following keyboard controls are available in direct projector warping view m decreased the amount of horizontal control points x axis FE increases the amount of horizontal control po
24. on set 12 1 save a settings file 12 1 save a binary raw settings file Note binary format may not compatible between different versions User Manual for VIOSO Blackbox 2 0 VIOSO GmbH 2011 Page 3 6 Multiple projector setup for stacked projectors Before starting the calibration the projectors should be adjusted manually so that the overlap of the projectors is as accurate as possible 6 1 Stacked projection with single displays 1 When using single displays for stacking execute a calibration as for a multiple projector setup as described in chapter 4 For each single display a distinct calibration must be accomplished don t be mislead by the term multi Execute a calibration for each single display round cave Uon level oad binary load array Save array es crowing 1258 quality if vc geom correction is disabled 7 1 calibration working area 1 calibration TOW utanar heal dual view desktop dual view desktop UU p m fan Calart docirard imana deadrace Select desired image output devices multi select Select desired image output devices multi select Display 1 VSCFC21 Display 1 VSCFC21 Display 3 SANDE2D Display 3 SANDE2D Display 4 2 Display 4 SANDE2B Select desired live image input device ive image inp Datapath VisionRGB E2 02
25. r 2 and beyond 1 1 Initial operation of the projectors on the PC d e Make sure that the projectors run their native resolution Align the projector displays on the windows desktop so that this alignment matches to the real setup e g left projector Display 1 middle projector Display 2 right projector Display 3 etc Check every projector e All projectors have to use the same colour setting for edge blending use only the setting with the best colour depth e g cinema natural etc Use the same means of auto adjust to every projector e Make sure that no digital zoom displacement framing etc is activated The projector images must be filled with content to 100 This can be assured by placing some general content like the Windows Explorer window manually on each projector and maximize it so that it fills the screen completely thus pixel 0 0 of the projector is the lop left pixel of the content and the pixel max max of the projector is the bottom right pixel of the content Disable any automatic or manual keystoning Try to minimize the effect of lens shift and other means of optical correction 1 2 Aligning projectors on the screen d Even in an automatic camera based setup the initial alignment of the projectors should be optimized to the highest extend The more corrections has to be applied the more the original content gets affected Try to alig
26. rabbed are not available as output device User Manual for VIOSO Blackbox 2 0 1050 GmbH 2011 Page 9 3 3 adjusting the output There are several panels for adjusting the output color adjustment 5 1 changes contrast brightness and color balance of displayed content virtual canvas 5 2 changes the geometric parameters of the output see chapter 4 Warping presentation options 5 3 toggles display options like correction features test images etc see section 5 3 2 Presentation options working area no 1 presenter Channel 0 Stopped Channel 1 S Stopped 5 Target 01 Cinergy Hybrid T USB XS FM Analog 0 PnP Monitor Standard 1VM5341 11 PnP Monitor Standard VSCFC21 Geomet comection Blank Color correction T test image jain cok channels ending adjus ment 5 1 color 5 2 virtual 5 3 presentation adjustment panel Canvas options User Manual for VIOSO Blackbox 2 0 VIOSO GmbH 2011 Page 10 4 Warping This chapter describes the geometric correction method of VIOSO BlackBox used for manual manipulation of the output The virtual canvas helps you to change the geometric parameters of the projection as it appears on the surface corner point keystoning side point scaling grid rows interpolation method rotate projection extrapolation method Reset Full screen move projection Rotate to grid columns Mirror Reset View Zo
27. the options should be set to default values and later only used on occasion C Setting a camera mask is an absolutely must When setting a mask please keep in mind e All areas that a not projected on should be masked e All shiny reflecting and glowing areas have to be masked e Very dark areas on the projection screen should be masked This is eminent for holes folds or any other discontinuities of the projection screen Using the option vignette effect filter compensates this requirement mask should be slightly smaller than the projected area Especially on bright surfaces there are crosstalk effects at the edges that may affect the measuring negatively e any surface method cannot compensate masked areas inside the projection image in that case black is projected there User Manual for VIOSO Blackbox 2 0 1050 GmbH 2011 Page 4 1 5 Troubleshooting Best practice hints when the output after a calibration does not meet the expectations a Minor flaws of the softedge can be adjusted after the calibration e sliders for colour and contrast influence the impact of the camera based surface correction e The sliders for the edge blending affect the softedge gradient directly b Major failures regarding the projector alignment and overlapping have to be minimized by doing alternative calibrations Often a first shot fails because mandatory requirements are not met entirely c When doi
28. y to use How to change projection settings outside the calibration assistant is described in section 5 3 Post calibration Now it is recommended to define the shape you want for your projection Please continue with chapter 4 Warping User Manual for VIOSO Blackbox 2 0 1050 GmbH 2011 Page 16 5 2 Advanced calibration steps at interaction level full If you choose this level of user interaction in the calibration process you can manually set brightness and line geometry adjustment Additionally it is recommended to avoid influence of environmental lights and objects Therefore masks are supported which you can define at the beginning of each setup 5 2 1 Important hints and considerations The visual result of a projection onto a non white and non even surface will not ever match the result as if projecting onto a white canvas because of physical reasons Please consider this fact whenever you plan to project onto a unusual surface The camera based wall correction of ViIOSO BlackBox makes only sense when using an unusual surface as a projection screen not when using a normal white canvas There are some limitations regarding suitable projection surfaces e The projection surface and projector have to remain motionless e surface must not be so dark that the projector is unable to create an image of sufficient brightness and contrast e Reflecting surfaces such as shimmering or gleaming synthetic materials ca
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