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Detecting cheering events in sports games

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4 Author(s)
Li Lu ; ThinkIT Speech Lab., Chinese Acad. of Sci., Beijing, China ; Fengpei Ge ; Qingwei Zhao ; Yonghong Yan

This paper proposes a unified method to deal with the problem of detecting cheering events in audio stream of live sports games. In our framework, first, a sliding window is used to pre-segment the audio stream into short segments by moving from start to the end. Second, various kinds of audio features are extracted to represent different audio sounds in each segment. Third, GMM (Gaussian Mixture Model) is used as the classifier to detect cheering events. Finally, in addition to widely used smoothing rules, this paper developed a new boundary-seeking smoothing algorithm to overcome the shortcomings of conventional sliding-window based analysis method and eliminate the false alarms caused by background noise. By integrating all the techniques, an average F value of 82.99% is achieved in the cheering detection task evaluated on eleven games of five kinds of sports. In this study, we discuss the complementarity of various kinds of audio features for the cheering event detection task. We also compare the result with the HMM based event detection framework. Based on our study, we conclude that for long-term audio event detection such as cheering event detection, sliding-window based framework gives more satisfied result.

Published in:

Education Technology and Computer (ICETC), 2010 2nd International Conference on  (Volume:1 )

Date of Conference:

22-24 June 2010