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Video Analysis

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cvCalcGlobalOrientationCalculates a global motion orientation in a selected region.
cvCalcMotionGradientCalculates a gradient orientation of a motion history image.
cvCalcOpticalFlowFarnebackComputes a dense optical flow using the Gunnar Farneback's algorithm.
cvCalcOpticalFlowPyrLKCalculates an optical flow for a sparse feature set using the iterative Lucas-Kanade method with pyramids.
cvSegmentMotionSplits a motion history image into a few parts corresponding to separate independent motions.
cvUpdateMotionHistoryCalculates the optical flow for two images by using the block matching method.