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Video object tracking method and apparatus

A target tracking and video technology, applied in the field of image processing, can solve problems such as the inability to eliminate the interference of background target tracking and the inability to accurately select color features, and achieve the effect of enhanced separability and improved accuracy.

Inactive Publication Date: 2009-06-10
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Embodiments of the present invention provide a video target tracking method and device to solve the problem that the color feature that can separate the target to be tracked from the background cannot be accurately selected and the interference of the background to target tracking cannot be eliminated.

Method used

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  • Video object tracking method and apparatus
  • Video object tracking method and apparatus

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Embodiment Construction

[0024] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0025] In Embodiment 1 of the present invention, a video target tracking method such as figure 1 As shown, the specific steps are as follows:

[0026] Step S101 , in a specified frame image of an image to be tracked, determine a target area to be tracked and a background area.

[0027] Specifically, designate the frame image as the first frame image of the image to be tracked or reinitialize the frame image, and the image to be tracked includes at least two frame images.

[0028] Step S102, constructing a color feature space of a specified frame image, and selecting a specific color feature.

[0029] Specifically, a linear combination operation is performed on the colors of the specified frame image to obtain several color features, and after removing invalid and repeated color features, a specific colo...

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Abstract

The embodiment of the invention discloses a method for tracking a video target. The method comprises the following steps: a color characteristic space of an appointed frame image in an image to be tracked is constructed; the specific color characteristic is selected; according to the specific color characteristic, the specific color combination characteristic is selected; according to the color combination characteristic, a trust image of each other frame image in the image to be tracked is constructed; the trust image is optimized; and the position of a target to be tracked is searched in the optimized trust image. The method provided by the embodiment can accurately select the color characteristic so as to well express the target to be tracked so that separability between the target to be tracked and background is enhanced; and through the optimization of the trust image, partial background objects in the trust image are removed at the same time, thereby improving accuracy of a tracking result.

Description

technical field [0001] The invention relates to the field of image processing, in particular to a video target tracking method and device. Background technique [0002] At present, multimedia technology is developing towards interactive and intelligent direction, among which video target tracking and recognition technology is a key technology of intelligent video processing and analysis system. The result of object tracking includes the spatio-temporal information in the video scene, reflecting the main content information in the video, and plays an important role in various fields such as content-based video analysis, video retrieval, and intelligent video surveillance. The process of video target tracking can be generally described as: the imaging system collects and records the images formed by the three-dimensional scenes of the objective world in the form of two-dimensional arrays and saves them in the computer. The computer uses various visual models in the internal v...

Claims

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Application Information

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IPC IPC(8): H04N9/64G06T7/20
Inventor 左坤隆
Owner HUAWEI TECH CO LTD
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