Chunxi Liu Qingming Huang Shuqiang Jiang Liyuan Xing Qixiang Ye Wen Gao A framework for flexible summarization of racquet sports video using multiple modalities. 415-424 2009 113 Computer Vision and Image Understanding 3 http://dx.doi.org/10.1016/j.cviu.2008.08.002 db/journals/cviu/cviu113.html#LiuHJXYG09