TY - JOUR
T1 - Modeling spatiotemporal relationships between moving objects for event tactics analysis in tennis videos
AU - Chu, Wei Ta
AU - Tsai, Wen Ho
N1 - Funding Information:
Acknowledgements This work was partially supported by the National Science Council of ROC under NSC 96-2218-E-194-005 and 97-2221-E-194-050. The authors would like to thank anonymous reviewers for giving valuable comments, and thank Ming-Chun Tien, Yi-Tang Wang, Chen-Wei Chou, Kuei-Yi Hsieh, and Ja-Ling Wu for co-developing former version of the system.
PY - 2010/10
Y1 - 2010/10
N2 - Evolution of spatial relationships between objects often provides important clues for semantic video analysis. We present a symbolic representation that describes spatiotemporal characteristics and facilitates tactics detection based on string matching. To find typical spatiotemporal patterns of a targeted tactic, we organize training sequences as a tree, and effectively discover frequent patterns from the structure. Tactics detection is conducted by comparing a given test sequence with these frequent patterns. To realize the proposed idea, we develop elaborate audio/video processes to transform broadcasting tennis videos into symbolic sequences, and comprehensively tackle event detection and tactics analysis. We experiment on ten most important tennis championships in the year 2008, and report promising detection results on seven events/tactics. We demonstrate not only the effectiveness of the proposed methods, but also study the impacts brought by the results of tactics analysis.
AB - Evolution of spatial relationships between objects often provides important clues for semantic video analysis. We present a symbolic representation that describes spatiotemporal characteristics and facilitates tactics detection based on string matching. To find typical spatiotemporal patterns of a targeted tactic, we organize training sequences as a tree, and effectively discover frequent patterns from the structure. Tactics detection is conducted by comparing a given test sequence with these frequent patterns. To realize the proposed idea, we develop elaborate audio/video processes to transform broadcasting tennis videos into symbolic sequences, and comprehensively tackle event detection and tactics analysis. We experiment on ten most important tennis championships in the year 2008, and report promising detection results on seven events/tactics. We demonstrate not only the effectiveness of the proposed methods, but also study the impacts brought by the results of tactics analysis.
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U2 - 10.1007/s11042-009-0363-z
DO - 10.1007/s11042-009-0363-z
M3 - Article
AN - SCOPUS:77954087605
SN - 1380-7501
VL - 50
SP - 149
EP - 171
JO - Multimedia Tools and Applications
JF - Multimedia Tools and Applications
IS - 1
ER -