基于镜头的广播足球视频开场和终场检测  

Shot-based Detection of Game Start and End in Broadcast Soccer Video

作　　者：施陈博[1] 王贵锦[1] 林行刚[1] 

机构地区：[1]清华大学电子工程系,北京100084

出　　处：《电视技术》2010年第8期29-32,共4页Video Engineering

摘　　要：为了实现广播足球视频的自动分析,提出一种新型检测足球比赛开场和终场的算法。首先对足球比赛视频进行镜头检测和分类,然后以此为基础提取多个特征,从而确定视频比赛中开始和结束的可能时刻,最后利用对模型的最大似然估计,在这些时刻中选取最优组合作为比赛检测的最终结果。在包含多种类型的由9场完整比赛组成的数据集上,获得了100%的检测率,并且检测时刻的平均误差在30s以内。实验结果表明这种方法具有很好的有效性和稳健性。A novel algorithm for detecting soccer games＇ start and end is proposed,which is important for automatic broadcast soccer video analysis.Firstly,features are extracted based on the shot detection and classification results.Then,using the extracted features,all possible moments of game start and end can be found.Finally,the possibility of each combination of all these moments is calculated.The maximum joint probability decides the detected moments of the game start and end.The detection rate on 9 diversified soccer videos reaches 100%,and the average time error is within 30 seconds.Experimental results show that the algorithm has effectiveness and robustness.

关 键 词：足球视频 镜头 开场 终场 联合概率 

分 类 号：TN941[电子电信—信号与信息处理] TP391.4[电子电信—信息与通信工程]