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Multi-peak target tracking method with fusion of background information

A technology of background information and target tracking, applied in the direction of instruments, character and pattern recognition, computer parts, etc., can solve problems such as target interference

Active Publication Date: 2018-03-02
HEBEI UNIV OF TECH
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AI Technical Summary

Problems solved by technology

This method can extract the real background information of the target to solve the problem of target rotation change, use the multi-peak target detection strategy to solve the similar target interference problem, and use the target expected output response to obey the Gaussian distribution to solve the algorithm drift problem encountered in target tracking, which is beneficial to improve Tracking accuracy and speed for target tracking

Method used

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  • Multi-peak target tracking method with fusion of background information
  • Multi-peak target tracking method with fusion of background information
  • Multi-peak target tracking method with fusion of background information

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Embodiment 1

[0077] In this embodiment, the multi-peak target tracking method of fusing background information, combined with figure 1 , including the following steps:

[0078] The first step, input the tracking target position and size:

[0079] Step 1, input the target information of the first frame (X 1 ,Y 1 ,W 1 ,H 1 ). Among them, X 1 ,Y 1 ,W 1 ,H 1 Respectively represent the abscissa, ordinate of the target (the coordinate system defaults to the upper left corner of the picture), width, and height;

[0080] Step 2, according to the target information of the first frame (X 1 ,Y 1 ,W 1 ,H 1 ) to obtain the positive sample information of the training sample in the second frame, and at the same time obtain the information of the target search box in the second frame (X 1 ,Y 1 ,2W 1 ,2H 1 );

[0081] Step 3, according to the information of the target search box in the second frame (X 1 ,Y 1 ,2W 1 ,2H 1 ) Obtain the positive sample information of the second frame inp...

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Abstract

The invention relates to a multi-peak target tracking method with fusion of background information. According to the method, the background information near the target is utilized, the background information of the same size is extracted from eight concrete positions of upper left, upper, upper right, left, right, lower left, lower and lower right of a current frame target search box to act as candidate target search boxes, the response of the candidate target boxes is computed by using the circulation matrix of the correlation filter tracking method and the Gaussian kernel function, and the classifier parameters are trained and updated so that the success rate in case of rotation change of the target can be enhanced. Existence of the interference situation of similar targets is considered, and the multi-peak target detection strategy, i.e. the possibility that the target is located in any one of multiple peaks of the target output response diagram, is utilized so that the accuracy oftarget tracking can be enhanced.

Description

technical field [0001] The invention belongs to the technical field of computer vision target tracking, in particular to a multi-peak target tracking method based on fusing background information. Background technique [0002] With the rapid development of target tracking technology, it has become an important part of computer vision and is widely used in human-computer interaction, security monitoring and unmanned driving. At present, target tracking is still facing serious challenges. How to solve the problems of rotation change, scale change, similar target interference, algorithm drift and so on in target tracking, and how to improve the accuracy and success rate of target tracking are still the research difficulties of visual tracking. and hotspots. [0003] Target tracking technology is a comprehensive technology that achieves specific target positioning by analyzing and understanding video information. It can be divided into generative tracking and discriminative tr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/62
CPCG06V20/42G06V20/46G06V2201/07G06F18/24
Inventor 杨德东李雪晴毛宁杨福才李勇韩亚君
Owner HEBEI UNIV OF TECH
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