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Part Number: DLP3000
Need help with projector calibration part/ When I run DLP_LightCrafter_3D_Scan_Application.exe , executed options 1,3 and 4 successfully. When I run option 5 i.e calibrate system, I don't see any checkerboard been projected by projector. And images which get created i.e. from lcr3000_sequence_images_10.bmp to lcr3000_sequence_images_21.bmp are complete black images. PFA screenshots.
Note: I am not using point grey camera. I am using OpenCV compatible webcam. I can calibrate camera and also I do get camera calibration parameters. thanks in advance
In reply to Sanjeev:
That isn't a problem. I have tried whatever you suggested. But doesn't make a difference in hit rate.
I have another doubt - shall I ask in same thread here or make another thread?
Doubt: The OpenCV camera I am using is compatible with the application and captures required images and gives point cloud as output. But my problem here is, the pics captured are of resolution 640x480, whereas my camera's resolution is 2592x1944 . I have checked all config files available, I couldn't find anywhere the option to modify camera's resolution. Can you guide me on this i.e changing camera's resolution from 640x480 to 2592x1944 or anything else I desire. I even tried to look at the files in source code available. but I got lost. Can you help me on this?
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In reply to Shravani Erukala:
The application through OpenCV setup for default resolution setting which is 640x480. Could you try with another webcamera with smaller HD720p/VGA resolution?
If you can rebuild the application with debug enabled it can give more information about how the camera is configured and what are its settings as done by OpenCV
I would still think in a captured frame if there unwanted content that looks like chess board as i marked above could also cause the issue - basically OpenCV findchessboardcorner function is not passing.
One more thing - write your standalone opencv application and then directly call opencv capture and save image functions see how they are looking. If they are looking dark then we have to fix it.
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Thanks for your help regarding resolution, I could set my camera resolution. But I am still facing problems with projector calibration.
Here is the link to video of projector calibration setup in my case. Please suggest accordingly. Thank You
Extremely sorry, couldn't update. Your suggestion didn't help me. But I could solve the problem by debugging the available source code. The following function
I saved the images that are input to above function. Realized they weren't proper - maybe due to some delay with webcam while using it at 1280x720 resolution. Added delay and made sure that appropriate images are captured i.e white projection. no projection and combo projection images. And also verified, by saving the output image, which removes the projected from combo for further projector calibration. Whenever opencv's findchessboardcorners function doesn't find corners, it gives error. This implies now the code is fine , I just need to make sure to capture well focused images so that it can find corners.
So far this is what I have debugged. Since there is no trigger_in and webcam's default resolution is 640x480, I am facing problem and adding some delay with trial &error , could just make it work.
Conclusion: Change Camera (as it is a fixed focus webcam with default resolution 640x480). When new camera arrives, I shall try and let you know.
In reply to Allen Smith:
In reply to Kyle Rakos:
I was wondering if I could get help in buying camera. As per BOM for TIDA00361, FL3‐U3‐13Y3M is the part name. is the link to the part number mentioned. But nothing has been mentioned about lens' specifications been used. I would like to know the specs of lens been used by TI.
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