Method and system for position correction of video target tracking
A target tracking and video technology, used in image analysis, image enhancement, instruments, etc., can solve problems such as inability to be used as prediction, inaccurate target information, etc., and achieve high accuracy, robustness, and intelligence.
Active Publication Date: 2020-01-21
CHENGDU TOPPLUSVISION TECH CO LTD
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Problems solved by technology
The target information obtained by the traditional video target tracking method on the front of the vehicle will become very inaccurate as the angle of the vehicle changes in the video, and cannot be used as a basis for prediction
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Embodiment Construction
[0043] The core of the present invention is to provide a position correction method and system for video target tracking, which adopts a correction method independent of the tracking target's apparent shape information to correct the tracking result, with high fault tolerance and good robustness And the degree of intelligence is high.
[0044]In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0045...
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The invention discloses a position correction method and system for video target tracking. The method includes: predicting the translation of the current frame of the target according to the translation prediction model obtained from the training of the previous frame, and predicting the current translation of the target according to the scale prediction model obtained from the training of the previous frame. Predict the scale of the frame; determine a rectangular search area outside the target position area predicted by translation, and calculate the first parameter value corresponding to the rectangular search area; use the predicted predetermined number of scales to sample the target image information in the rectangular search area, and calculate The second parameter value corresponding to the target image information; determine the image block with the target information in the rectangular search area according to the first parameter value and the second parameter value, and calculate the edge information map of the image block; divide the edge information map into subsections of the same size Area, using the object-like sampling algorithm to compare each sub-area with the rectangular search area to obtain the corrected area; it has the advantages of high precision, good robustness and high degree of intelligence.
Description
technical field [0001] The invention relates to the technical field of computer image processing, in particular to a position correction method and system for video target tracking. Background technique [0002] Video target tracking is an important research direction in the field of computer vision. Its task is to find the position of the target in each frame of the video sequence, that is, to find the trajectory of the target in the video sequence. Object tracking is also a basic research direction in the field of computer vision. Video intelligent analysis, video semantic analysis, intelligent robots, etc. all need the technical support of object tracking. [0003] In recent years, with the development of video acquisition equipment and the maturity of video network transmission, the technology of object tracking in video has attracted more and more attention. Whether in laboratories and research institutes of major universities, or in major companies around the world, v...
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IPC IPC(8): G06T7/246G06T7/223
CPCG06T2207/10016
Inventor 马骁陈志超周剑
Owner CHENGDU TOPPLUSVISION TECH CO LTD