<XML><RECORDS><RECORD><REFERENCE_TYPE>3</REFERENCE_TYPE><REFNUM>7923</REFNUM><AUTHORS><AUTHOR>Ren,R.</AUTHOR><AUTHOR>Jose,J.</AUTHOR></AUTHORS><YEAR>2005</YEAR><TITLE>Football Video Segmentation Based on Video Production Strategy</TITLE><PLACE_PUBLISHED>ECIR 2005 </PLACE_PUBLISHED><PUBLISHER>LNCS, Springer</PUBLISHER><PAGES>433-446</PAGES><ISBN>3-540-25295-9</ISBN><LABEL>Ren:2005:7923</LABEL><KEYWORDS><KEYWORD>Multimedia retrieval</KEYWORD></KEYWORDS<ABSTRACT>We present a statistical approach for parsing football video structures. Based on video production conventions, a new generic structure called `attack' is identified, which is an equivalent of scene in other video domains. We define four video segments to construct it, namely play, focus, replay and break. Two middle level visual features, play field ratio and zoom size, are also computed. The detection process includes a two-pass classifier, a combination of Gaussian Mixture Model and Hidden Markov Models. A general suffix tree is introduced to identify and organize `attack'. They are proposed to discriminate these stochastic structures. In experiments, video structure classification accuracy of about 86% is achieved on broadcasting World Cup 2002 video data. </ABSTRACT></RECORD></RECORDS></XML>