A kind of motion target tracking method and system

The present invention relates to technical field of image processing, specifically provide a kind of motion target tracking method and system, and this method includes：First frame image in each frame image based on pursuit movement target determines the barycenter and size of the track window of moving target；Based on the pixel of moving target in first frame image, the color probability distribution figure of each frame image is determined；Based on the position of moving target in each frame image, the size of track window is adjusted, obtains the size of the track window of each frame image；Judge whether the track window size of each frame image is less than default track window size threshold value；If being less than, based on the color probability distribution figure of each frame image, the barycenter of the track window of each frame image is obtained；Store the barycenter of track window in each frame image；The movement locus of moving target is drawn on preset background image.By drawing the track of moving target and being preserved, in order to which observer observes the movement locus of moving target at any time, time and manpower are saved.