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Target tracking method of sports video

A target tracking and target technology, applied in the field of target tracking based on sports video, can solve the problems of poor tracking target effect and high computational complexity

Inactive Publication Date: 2009-08-19
INST OF COMPUTING TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the shortcomings of poor tracking effect and high computational complexity caused by only one motion mode in the prior art, and to provide a fast, stable and robust target tracking for sports video method

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  • Target tracking method of sports video
  • Target tracking method of sports video
  • Target tracking method of sports video

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Embodiment Construction

[0035] The sports video object tracking method of the present invention will be further described below in conjunction with the accompanying drawings and specific implementation methods.

[0036] refer to figure 1 , figure 2 , the sports video target tracking method of the present invention comprises the following steps:

[0037] Step 10, extract the color histogram in the video, and use the kernel function to normalize the color histogram to obtain the color distribution characteristics of the target. The specific implementation steps of this step are as follows.

[0038] Step 11. Calculate the weight of each pixel in the target. Assuming that the target to be tracked is a rectangular window whose center is y and window width is h, since the peripheral pixels of the target may be blocked or affected by the background, it is relatively unreliable, so different pixel points in the target are set Weight, the closer the pixel is to the center of the target, the greater the we...

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Abstract

The invention discloses a sports video target tracking method, comprising: extracting the color histogram in the video, using a kernel function to normalize the color histogram to obtain the color distribution characteristics of the target; using a particle filter algorithm to predict the motion of the target Position: According to the predicted value of the target's motion position, the exact value of the target's motion position is obtained by using the mean value clustering algorithm. The sports video target tracking method of the present invention introduces a variety of motion models, and dynamically updates the motion model according to the characteristics of the target motion, thereby achieving a better effect with a small number of samples, reducing the computational complexity, and improving the tracking performance. Accuracy.

Description

technical field [0001] The invention relates to a method for tracking a moving target, more specifically, relates to a method for tracking a target based on sports video. Background technique [0002] The detection and tracking of moving targets is an important topic in the field of applied vision. The core idea is to comprehensively utilize image processing, video analysis and other technical means to quickly and accurately capture moving targets. [0003] Monitoring dynamic scenes through cameras has long been widely used in all aspects of social life. From security monitoring of communities and important facilities to traffic monitoring in cities and highways, from detection of military targets to smart weapons, cameras play a very important role as an extension of human vision. In recent years, with the wide application of visual surveillance systems, the rapid positioning and tracking technology of moving targets has attracted more and more interest from many scientifi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N9/64G06T7/20
Inventor 李锦涛熊文平张勇东
Owner INST OF COMPUTING TECH CHINESE ACAD OF SCI