Video target profile tracing method and device

Abstract

The embodiment of the invention discloses a video target profile tracking method. The parameters for carrying out the state transfer of various random particles during the profile tracking process are adjusted through the position of a target center-of-mass obtained by tracking the center-of-mass of a target, thereby allowing the parameters for carrying out the state transfer of the random particles to be correspondingly changed along with the change of the position of the target center-of-mass and further allowing the tracking of the target profile to be more accurate. The embodiment of the invention further discloses another video target profile tracking method, the various random particles are assessed through the position of the target center-of-mass obtained by tracking the center-of-mass of the target, the weight values of the particles are adjusted according to the degree of closeness of the center-of-mass of the profiles of the various particles to the target center-of-mass obtained by tracking, thereby allowing the target profile obtained by weighted accumulation of the various particles to be more closer to the true target profile and further allowing the tracking of thetarget profile to be more accurate. The embodiment of the invention further discloses two video target profile tracking devices.

Description

technical field Embodiments of the present invention relate to the fields of computer vision technology and image processing technology, and in particular, to a video object contour tracking method and device. Background technique At present, the human visual system is the main way to obtain external information, and the detection and tracking of moving objects is an important topic in the field of vision, and real-time object tracking is a key technology in computer vision. At present, the video security monitoring system has been more and more applied in various departments such as banking and transportation, and the real-time tracking of video target objects can play an early warning role. Therefore, real-time tracking of target objects has become more and more popular. more attention. There are many methods for video object tracking, which can be divided into detection-based methods and recognition-based methods according to whether pattern matching is performed betwee...

AI Technical Summary

Problems solved by technology

The above-mentioned method of tracking the outline of the target can realize the tracking of the outline of the target object, but because only the outline information of the target object is extracted from the video data for analysis and calculation, when the moving speed of the video target changes frequently, the tracked outline will appear "Advanced" or "lag" jitter phenomenon, tracking is not accurate; in addition, when similar contour information appears around the video target, accurate tracking cannot be performed

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