科研之友
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摘要
In order to overcome the large amount of computation and the inaccuracy of motion parameter estimation due to lightness discontinuity by optical flow algorithm, a fast moving target detection method on the basis of the improved interframe difference algorithm and the improved optical flow algorithm was proposed. According to the improved three-frame difference algorithm, the region of the moving target was extracted accurately. By the improved optical flow algorithm, the optical flow value of the moving target in the region was extracted exactly under the condition of the lightness discontinuity, and the moving target can be detected precisely by the threshold value of optical flow vector. The experiment results show that the method has good robust and small computation.
