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Target tracking method for judging occlusion and repositioning target

A target relocation and target tracking technology, applied in the field of target detection and tracking, can solve problems such as poor results, and achieve the effect of avoiding tracking and losing.

Active Publication Date: 2019-11-01
HARBIN ENG UNIV
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AI Technical Summary

Problems solved by technology

Target relocation currently includes response-based peak relocation, SVM detection relocation, etc., but there are still problems with some specific occlusion problems.

Method used

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  • Target tracking method for judging occlusion and repositioning target
  • Target tracking method for judging occlusion and repositioning target
  • Target tracking method for judging occlusion and repositioning target

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Embodiment Construction

[0026] The present invention includes the following steps: (1) for any target tracking process, use the change of the confidence function to roughly judge whether occlusion occurs; (2) calculate the target LBP (Local Binary Pattern, local Binary mode) feature and pre-selection frame LBP features of the Barrett's distance to further confirm whether to occlude; (3) for partial occlusion, use the multi-peak relocation method to locate the target after occlusion; (4) for severe occlusion or For long-term occlusion, SVM (Support Vector Machine) detection and relocation method is used for accurate positioning.

[0027] The invention adopts different relocation methods under different occlusion conditions to improve the effect of the tracker tracking the target under the occlusion state of the target.

[0028] In order to make the technical solution of the present invention more clear, the following in conjunction with the attached figure 1 The flow chart of the method in the middle...

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Abstract

The invention discloses a target tracking method for judging occlusion and repositioning a target, and belongs to the field of target detection and tracking. The method comprises the following steps:for any target tracking process, roughly judging whether occlusion occurs or not by utilizing the change of a confidence coefficient function; calculating the Bhattacharyya distance between the targetLocal Binary Pattern feature and the Local Binary Pattern feature of the pre-selected box for the area which is preliminarily judged to be shielded, and further confirming whether the target Local Binary Pattern feature is shielded or not; for the condition of local occlusion, adopting a multi-peak repositioning method to perform positioning after target occlusion; and for severe shielding or long-time shielding, adopting an SVM (Support Vector Machine) detection repositioning method to carry out accurate positioning. According to the method, the target shielding condition can be accurately judged, and the problem of target repositioning after shielding is effectively solved.

Description

technical field [0001] The invention belongs to the field of target detection and tracking, and in particular relates to a target tracking method for judging occlusion and target relocation. Background technique [0002] Target detection and tracking technology is a technology developed and put into application in recent years, and it is also an important topic and research hotspot at present. Target detection and tracking can analyze and understand the behavior of moving targets by estimating the position and shape of the tracking target in the continuous video image sequence, and determining the target's movement speed, direction, and trajectory, so as to complete more advanced tasks. Tasks such as missile guidance, military drone reconnaissance, road traffic monitoring, face recognition, intelligent monitoring and other technologies are inseparable from target tracking. [0003] One of the main challenges faced by the target tracking technology based on visible light ima...

Claims

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Application Information

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IPC IPC(8): G06T7/73
CPCG06T7/73
Inventor 管凤旭胡秀武杜雪严浙平李娟
Owner HARBIN ENG UNIV
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