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Maximally stable extremal region characteristic-based extended target tracking method

A technology with maximum stable extreme value and extended target, applied in the field of extended target tracking, it can solve the problems of inability to meet the needs of technical development, limited stability and accuracy, and achieve the effect of highlighting substantive features and improving accuracy.

Active Publication Date: 2014-03-19
CHENGDU ZHENGYANG BOCHUANG ELECTRONICS TECH
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Problems solved by technology

[0007] The purpose of the present invention is to provide an extended target tracking method based on the characteristics of the maximum stable extremum region, which mainly solves the problem that the existing extended target tracking method in the prior art has very limited stability and precision and cannot meet the needs of technological development

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  • Maximally stable extremal region characteristic-based extended target tracking method

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Embodiment

[0024] In order to solve the problem that the existing extended target tracking method in the prior art has very limited stability and accuracy and cannot meet the needs of technological development, such as figure 1 As shown, the present invention discloses an extended target tracking method based on the feature of the maximum stable extremum region with high stability and precision, which is realized by the following steps:

[0025] Select a square image area with side length a (a > 0) in the extended target; set the binarization segmentation threshold range of the grayscale image, preferably 20~230, and perform the selected square image area within this range Binary segmentation, and after each segmentation, calculate the connected domain through the region growth method and further detect whether there is a maximum stable extremum region, if there is, proceed to calculate the centroid and area of ​​the largest stable extremum region, otherwise re-select the square image Ar...

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Abstract

The invention discloses a maximally stable extremal region characteristic-based extended target tracking method. The problems that the conventional extended target tracking method is limited in stability and precision and the technological development requirement cannot be met in the prior art are mainly solved. The method comprises the following steps: selecting a square image area of which the side length a is more than 0 in an extended target; performing binarization segmentation on the selected square image area, calculating a communicated domain after each segmentation, and further detecting whether a maximally stable extremal region exists; if so, calculating the center of mass and area of the maximally stable extremal region; taking an m*m template (m is more than 0) by taking the center of mass as the center, and performing continuous frame matching pursuit on the maximally stable extremal region; and obtaining the area change of the maximally stable extremal region according to the matching pursuit so as to determine the template. According to the scheme, the aim of effectively improving the stability and precision of the extended target tracking is achieved, and the method has high practical value and popularization value.

Description

technical field [0001] The invention relates to an extended target tracking method, in particular to an extended target tracking method based on the feature of the maximum stable extremum region. Background technique [0002] As we all know, target tracking has a very wide range of applications in the military and security fields. From the category of targets, it can be divided into micro targets, small targets, large targets and extended targets. Among them, the extended target of is the situation that when the target occupies a relatively large proportion in the field of view of the camera, even only a part of the target appears in the field of view. In general, each target has its different application scenarios. Small targets are usually used in the environment of long-distance photoelectric detection and tracking; small targets and large targets are used in security monitoring track tracking environments; extended targets are generally used for small targets Or after t...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06K9/32G06T7/20
Inventor 张建伟吴伟
Owner CHENGDU ZHENGYANG BOCHUANG ELECTRONICS TECH
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