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Optical flow method of moving target detection dev
4.0
OpenCV background difference, optical flow,
1. the first is that assumptions:
(1) brightness is constant, is the same point as the time changes, its brightness does not change . This is a basic optical flow field assumption (all optical flow variants must satisfy) used to get light flow basic equations;
(2) small movement, this must also be met, time change does not introduce dramatic changes to the location of, so that the gray beg deflector (in other words, small movement situations we can use front and rear frames between position changes caused by variations of gray to gray on the location of partial derivatives), which was parcel of the optical flow method assumes that;
(3) space, an adjacent point on the scene projected onto t
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