Target tracking method and target tracking device

A technology of target tracking and kernel histogram, applied in the field of image processing, can solve the problems of missing tracking target, weak algorithm robustness, falling into local extreme points, etc., to improve anti-interference ability, enhance accuracy and robustness sexual effect

Active Publication Date: 2013-01-30
CRSC COMM & INFORMATION GRP CO LTD
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Problems solved by technology

[0004] In the process of realizing the present invention, the inventors found that there are at least the following problems in the prior art: in the prior art, although the mean shift algorithm uses the kernel color histogram to model the tracking target, when the tracking ta

Method used

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  • Target tracking method and target tracking device
  • Target tracking method and target tracking device

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no. 1 example

[0060] see figure 1 , which is a flow chart of the first embodiment of the target tracking method provided by the present invention, including:

[0061] S101. When performing target tracking, acquire a current frame image, compare the current frame image with a previous frame image, and acquire a frame difference template.

[0062] Specifically, an inter-frame difference algorithm is used to obtain a frame difference template between the current frame image and the previous frame image, so as to extract pixels that change due to background changes and target movement.

[0063] S102. Perform foreground detection processing using the current frame image and a pre-established background template to obtain a foreground template.

[0064] Specifically, the background template can be obtained through multi-Gaussian background modeling. Then use the current frame image and the background template to perform foreground detection, that is, obtain the foreground template through backg...

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Abstract

The invention relates to the technical field of image processing, in particular to a target tracking method and a target tracking device. The method includes: acquiring a current frame image during target tracking, comparing the current frame image to a previous frame image to obtain a frame difference template; performing foreground detection by the current frame image and a pre-established background template to obtain a foreground template; fusing and processing the frame difference template and the foreground template to obtain a foreground image of a candidate area after fusion; and tracking a determined tracking target in the foreground image of the candidate area. Most background interference is eliminated from the foreground area of the extracted fused candidate target, so that the target can be tracked in the effective area, chances of getting trapped in local peaks during target tracking are slimmed, interference resistance of the target tracking method is further improved and algorithmic accuracy and robustness are improved.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to a target tracking method and device. Background technique [0002] Object detection and tracking is the main research direction of dynamic image processing technology, which has a wide range of application prospects, especially in the fields of intelligent monitoring, human-computer interaction and auxiliary medical diagnosis. Through target tracking, the system can automatically obtain information such as the position and size of the tracking target in the video or image. In the general video target tracking method, a reference template that identifies the tracking target or the object to be detected is established in advance as the basis for identifying and determining the position of the tracking target, and then uses the reference template to compare with each sub-region in the real-time image to find The position of the sub-region image closest to the track...

Claims

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Application Information

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IPC IPC(8): G06T7/20
Inventor 安国成李洪研张涛
Owner CRSC COMM & INFORMATION GRP CO LTD
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