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Image warping with heat map that "pulls" on pixels

You need to split the problem into two: Compute the motion (the velocity vectors, aka flow) Resample the image I assume that computing the motion is expensive, and you want to do it on less pixels ...
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Detecting Trail in Forest Images

If you need a simple real-time approach then I suggest to use color (limited range on HSV domain) and texture features (such as GLCM). Then, by evaluation the discontinuity in horizontal imaginary ...
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Fixing distortion in photographic reproductions

In a general setting, multiple observations of a calibration target are needed because otherwise the focal length parameter(s) and principle point parameters are coupled so you would not be able to ...
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Fixing distortion in photographic reproductions

I answered a related question in SO some time ago. Briefly, you can work your setup through a standard camera calibration procedure, and you have the option of "freezing" the focal length to ...
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