DocumentCode :
3325780
Title :
Real-time visual play-break detection in sport events using a context descriptor
Author :
Carbonneau, Marc-Andre ; Raymond, Alexandre J. ; Granger, Eric ; Gagnon, Ghyslain
Author_Institution :
Dept. de Genie Electr., Univ. du Quebec, Montréal, QC, Canada
fYear :
2015
fDate :
24-27 May 2015
Firstpage :
2808
Lastpage :
2811
Abstract :
The detection of play and break segments in team sports is an essential step towards the automation of live game capture and broadcast. This paper presents a two-stage hierarchical method for play-break detection in non-edited video feeds of sport events. Unlike most existing methods, this algorithm performs action and event recognition on content, and thus does not rely on production cues of broadcast feeds. Moreover, the method does not require player tracking, can be used in real-time, and can be easily adapted to different sports. In the first stage, bag-of-words event detectors are trained to recognize key events such as line changes, face-offs and preliminary play-breaks. In the second stage, the output of the detectors along with a novel feature based on spatio-temporal interest points are used to create a context descriptor for the final decision. Experiments demonstrate the efficiency of the proposed method on real hockey game footage, achieving 90% accuracy.
Keywords :
computer vision; image classification; object detection; sport; video recording; video signal processing; automatic video summarization; bag-of-words event detectors; break segment detection; computer vision; context descriptor; face-offs; key event recognition; line changes; live game broadcast automation; live game capture automation; non edited video feeds; play segment detection; play-break classification; real hockey game footage; real-time visual play-break detection; spatio-temporal interest points; sport events; two-stage hierarchical method; Cameras; Context; Detectors; Feature extraction; Games; Streaming media; Video sequences; bag-of-words; computer vision; event detection; event modeling; play-break classification;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Circuits and Systems (ISCAS), 2015 IEEE International Symposium on
Conference_Location :
Lisbon
Type :
conf
DOI :
10.1109/ISCAS.2015.7169270
Filename :
7169270
Link To Document :
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