lecture28 - Robert Collins CSE454, PSU Lecture 28: Video...

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CSE454, PSU Robert Collins Lecture 28: Video Tracking: Lucas-Kanade
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CSE454, PSU Robert Collins Review: Lucas-Kanade Brightness constancy One equation two unknowns How to get more equations for a pixel? – Basic idea: impose additional constraints • one method: pretend the pixel’s neighbors have the same (u,v) – If we use a 5x5 window, that gives us 25 equations per pixel! * From Khurram Hassan-Shafique CAP5415 Computer Vision 2003 unknown flow vector spatial gradient temporal gradient
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