An automatic detection method of moving target position based on video images of stadium games

A technology of video images and moving targets, which is applied in the field of automatic detection of moving target positions based on video images of stadium games, can solve problems such as missed detection, and achieve the effect of reducing the amount of calculation and the number of generated objects

Inactive Publication Date: 2017-02-15
CHENGDU KINESIOLOGY UNIVERSITY
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AI Technical Summary

Problems solved by technology

However, this straight line detection method implies an assumption: the straight line of the court is formed by connecting the feature points
However, in real video, especially TV video, this assumption does not always hold
So there is a case of missed detection

Method used

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  • An automatic detection method of moving target position based on video images of stadium games
  • An automatic detection method of moving target position based on video images of stadium games
  • An automatic detection method of moving target position based on video images of stadium games

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Embodiment Construction

[0081] The present invention is specifically described below by way of embodiment, and present embodiment is only used to further illustrate the present invention, but can not be interpreted as the restriction to protection scope of the present invention, some non-compliances that those skilled in the art make according to the content of the present invention above-mentioned Essential improvements and adjustments also belong to the protection scope of the present invention.

[0082] The present invention is based on the method for automatically detecting the position of a moving target based on a game video image of a stadium, including game video image collection, video image processing and determination of a moving target position;

[0083] Game video image acquisition: acquire digital video images including moving targets in the stadium game;

[0084] Video image processing: establish a perspective transformation matrix database between automatic recognition targets, compet...

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Abstract

The invention discloses a mobile-target position automatic detection method based on stadium match video images. The detection method includes: match video image acquisition, video image processing and mobile-target position determination. Compared with the prior art, the detection method adopts a linear tracking and sub-pixel optimization method. In summary, the whole detection method improves speed and precision in acquisition of technique and tactic information from a television video significantly so that camera parameter automatic calibration under a multi-camera condition is helped to be completed and thus the method plays an important role in carrying out sport video analysis and understanding, further improvement of technical analysis and application capability of sports and improvement of the technical and tactic level of athletes.

Description

technical field [0001] The invention belongs to the technical field of computer vision and image processing, in particular to the technical field of sports game technical analysis image processing, in particular to a method for automatically detecting the position of a moving target based on a video image of a stadium game. Background technique [0002] In sports competitions, techniques and tactics have a decisive impact on the outcome of the competition. Therefore, obtaining the technical and tactical information of both the enemy and the enemy and conducting statistical analysis has become a key link in defeating the enemy. Among them, obtaining athletes' technical and tactical data from video images is not only objective and non-interfering, but also can be carried out under competition conditions. It is one of the most effective scientific research methods at present. [0003] After being processed by an optical device such as a camera, the real rectangular playing fie...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/20G06T7/00G06T3/00
Inventor 沈乐君刘青
Owner CHENGDU KINESIOLOGY UNIVERSITY
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