I am working on a scanner that combines thermal images with 3D scans (see this post) To align the thermal cameras, photograph a heated calibration board with holes. I use the hole location to try to align the thermal cameras.
My question is: How do I correct alignment in RC? I have limited information on the thermal camera optics, but I figure it should be easy enough to find the correct position of the cameras based on these points. as long as they are defined in multiple images.
Features are detected on the thermal images, but rather limited. I'd like to force RC to only use these CPs in alignment. I cannot however get a consistent workflow / result when I align the images and thus cannot quantify my alignment quality. There seem to be multiple solutions to this alignment, and often times RC ignores my control points completely. Changing the CP weight does not seem to help.
I have tried feeding in an approximate position of the cameras and using that as a draft for orientation and position, but with limited succes. Does anyone have suggestions for a more robust workflow to force correct alignment?
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