3Kawashima T,Yoshino K,Aok Y.Qualititative image analysis of group behavior[C]//Proc Comp Vis and Pattern Rec,1994-06.
4Seo Y,Choi S,Kim H,et al.Where are the ball and players?Soccer game analysis with color-based tracking and image mosaick[C]//Proceedings of the International Conference on Image Analysis and Processing,Florence,Italy,1997:196-203.
5Intille S S,Bobick A F,Tracking using a local closed-world assumption:Tracking in the football domain[R].MIT,1994-08.
6Utsumi O,Miura K,Ide I,et al.An object detection method for describing soccer games from video[C]//Proc IEEE International Conference on Image Processing,2002:45-48.
