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Sports event dynamic mini- map based on target detection and tracking

A technology of target detection and dynamic map, applied in the field of multimedia and pattern recognition, can solve the problem that the overall team formation cannot be presented clearly and completely.

Inactive Publication Date: 2010-06-23
姚劲草 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the present invention is not limited to sports programs, it is particularly suitable for sports programs, because for the audience, various information on changes in the formation of the overall team in sports games often cannot be clearly and completely presented due to various partial shots

Method used

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  • Sports event dynamic mini- map based on target detection and tracking
  • Sports event dynamic mini- map based on target detection and tracking
  • Sports event dynamic mini- map based on target detection and tracking

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Embodiment Construction

[0017] Such as figure 1 As shown, first, the camera captures the panorama of the game (101) to obtain video information with a fixed viewing angle. Due to the huge amount of video information data obtained from the camera, it is necessary to eliminate redundant frames and extract key frames that can better reflect the global change information. Because the prior knowledge of whether the object is moving or not and the speed of motion in the scene is unknown, one method is to extract time at equal intervals. Since different types of sports programs have different speeds of sports equipment and players, for low-speed or static scenes Equal interval extraction increases redundant frames, resulting in an increase in the amount of calculation, and if the interval is too large, key frames of fast movement of athletes in the game will be missed. In response to this problem, the present invention proposes to use the rate of change of the regional color histogram as an estimate of the...

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Abstract

The invention provides a sports even dynamic mini-map generation technology based on video target detection and tracking, which includes the procedures of video information acquisition, key frame sequence extraction, target detection and tracking, coordinate transformation and graph drawing, and finally generating the overall dynamic mini-map of the sports event. The dynamic mini-map can show the full view of the sports event to the audience in overall mode, and visually indicates the athlete speed, motion track and overall lineup of the sports event, also assists the announcer on commenting and the coach on tactical layout.

Description

technical field [0001] The present invention relates to the fields of multimedia and pattern recognition, and more specifically, relates to a method and technology for tracking the movement of athletes and sports equipment in sports competitions, identifying the competition field and generating a panoramic dynamic miniature map of the competition. Background technique [0002] In the live TV broadcast of sports games like football, baseball, rugby, etc., due to the large area of ​​the game field, multiple cameras are often used for recording, and the program editor selects the picture of one of the cameras as the live signal from time to time. Appreciate the wonderful pictures of sports games from different angles, but this method also has the disadvantage that the global scene and local details cannot be taken into account, that is, when the camera is zoomed in, the audience loses the perception of the overall game while enjoying the clear local pictures, making people " I ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/262G06T15/00G06T7/00
Inventor 姚劲草韩曦赵锟
Owner 姚劲草
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