DocumentCode :
873534
Title :
Event Detection of Broadcast Baseball Videos
Author :
Hung, Mao-Hsiung ; Hsieh, Chaur-Heh
Author_Institution :
Dept. of Inf. Eng., I-Shou Univ. Dahsu, Kaohsiung
Volume :
18
Issue :
12
fYear :
2008
Firstpage :
1713
Lastpage :
1726
Abstract :
This paper presents an effective and efficient event detection system for broadcast baseball videos. It integrates midlevel cues including scoreboard information and shot transition patterns into event classification rules. First, a simple scoreboard detection and recognition scheme is developed to extract the game status from videos. Then, a shot transition classifier is designed to obtain the shot transition patterns, which contains several novel schemes including adaptive playfield segmentation, pitch shot detection, field shot detection, as well as infield/outfield classification. The extracted midlevel cues are used to develop an event classifier based on a Bayesian Belief Network. The network is with low complexity because the number of these cues used is small, which not only improves the generalization performance of the event classifier but also reduces system complexity as well as training efforts. Using the inference results of the network, we further derive a set of classification rules to identify baseball events. The set of rules is stored in a look-up table such that the classification is only a simple table look-up operation. The proposed approach is very simple and computational efficient. More importantly, the simulation results indicate that it identifies ten significant baseball events with 95% of precision rate and 92% of recall rate, which is very promising.
Keywords :
Bayes methods; belief networks; computational complexity; digital video broadcasting; feature extraction; image classification; image segmentation; learning (artificial intelligence); object detection; object recognition; sport; table lookup; video signal processing; Bayesian belief network; adaptive playfield segmentation; baseball video broadcast; event classification rule; event detection system; field shot detection; game status extraction; infield-outfield classification; look-up table; pitch shot detection; scoreboard detection; scoreboard information; scoreboard recognition; shot transition pattern; Broadcast baseball video; event detection; mid-level cue;
fLanguage :
English
Journal_Title :
Circuits and Systems for Video Technology, IEEE Transactions on
Publisher :
ieee
ISSN :
1051-8215
Type :
jour
DOI :
10.1109/TCSVT.2008.2004934
Filename :
4633645
Link To Document :
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