Analysis method of sports video case

A technology of video events and analysis methods, applied in the fields of video analysis, image processing and visual processing, sports video understanding and analysis

Inactive Publication Date: 2009-01-28
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

These methods are sufficient for ordinary audiences or users, but for professionals engaged in sports work such as players and coa...

Method used

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  • Analysis method of sports video case
  • Analysis method of sports video case
  • Analysis method of sports video case

Examples

Experimental program
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Embodiment Construction

[0014] The present invention carries out tactics automatic analysis to sports video incident, below taking football " shooting " incident as example in conjunction with attached figure 1 The present invention is further described.

[0015] The present invention starts from event extraction 10 and uses multi-modal features such as video, audio and external text information to extract a complete game event 20 from the entire sports game.

[0016] Tactical information extraction 30 is then performed. By analyzing the position of each area in the entire stadium, the area is divided into a side area and a center area. For the input event clip, by detecting the marking lines (such as the goal line and the middle circle) in the field, the competition network technology is used to identify the field area where each frame of the event video occurs, and judge whether the area belongs to the side area or Middle area. This operation can not only be realized by using the method of marki...

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Abstract

The invention provides a sports video event analysis method. The method comprises the following steps that: mark lines in a field are extracted, and a field region where an event happens is identified through a scene classification method, so as to classify the line mode of a competition event; through an interactive analysis of multi-object tracks, interactive tracks of a ball and team members are generated according to the competition event, and a hierarchical detailed-to-rough analysis is carried out according to an interactive mode of the competition event; and finally, a tactical mode summary with an abstract property is formed and presented to users. The method automatically analyzes strategic methods adopted when the team members (teams) in the video event complete a tactical movement from professional view, and presents in a concise clear mode, so as to provide help for the learning and training of coaches and the team members.

Description

technical field [0001] The invention relates to the fields of video analysis, image processing and visual processing, and further relates to the field of sports video understanding and analysis. Background technique [0002] With the development of digital technology, video data has also begun to show an explosive growth trend. As an important resource in digital video, the content analysis of sports (broadcast) video has attracted more and more attention. In view of the wide audience of sports video and the broad potential market of content analysis technology, the research on content (event) analysis of sports video has also achieved endless results. [0003] Throughout the current proposed sports video content analysis methods and technologies, the purpose is to extract the highlights (segments) in the video, such as the shooting event in the football video. These methods are sufficient for ordinary audiences or users, but for professionals engaged in sports work such a...

Claims

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Application Information

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IPC IPC(8): G06T7/20
Inventor 朱光宇黄庆明蒋树强
Owner INST OF COMPUTING TECH CHINESE ACAD OF SCI
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