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2014-09-28 16:13:00 -0600 answered a question Non-parallel stereo camera calibration and 3D reconstruction

I also have this same problem and would like more information on the subject. I cannot successfully perform stereo rectification on non parallel cameras. As the cameras angle in towards each other, the valid ROI region moves more and more outside the images until finally no image is present, just strange circular blobs of pixels.

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2013-10-11 11:49:30 -0600 asked a question stereo calibration translation vector

When using the stereoCalibrate function, I a putting the left images in for camera one and the right images in for camera two (standing behind the cameras). I would assume the translation vector would be in the positive x direction (ie. to the right), but it is not. The magnitude of the vector is correct, it's just going in the "wrong" direction. I was just curious why it's coming back negative. Thanks.