基于数字签名的高效视频拷贝检测算法研究  

Efficient Video Copy Detection Method Based on Video Signature

作　　者：李小雨[1] 王琳[1] 王辉淇 

机构地区：[1]国家新闻出版广电总局广播科学研究院,北京100866 [2]北京邮电大学信息与通信工程学院,北京100876

出　　处：《电视技术》2014年第7期214-216,共3页Video Engineering

基　　金：国家"863"计划重大专项(2011AA01A103)

摘　　要：为了解决视频特征提取和大型数据库的快速搜索问题,提出了一种新的视频拷贝检测算法。该算法基于视频剪辑的时空特征计算视频签名,通过视频签名的距离来衡量视频之间的相似性。为视频签名数据库建立聚类索引表,提高搜索速度。在大型数据库中查询测试的实验结果表明该算法对视频拷贝检测有较高查全率和正确率。该算法可以作为一种有效的视频跟踪和检测技术应用于数字广播电视的监控领域。In order to solve the video feature extraction and fast search in large database problem, a novel feature video copy detection approach is pro- posed in this paper. The video signature is computed based on spatial-temporal features of video clips. The video similarity is measured by the distance of video signature. A clustering index table is created for the video signature databases, which could improve the speed of search. In a large database query test results show that the proposed algorithm has high recall rate and precision rate for video copy detection. The algorithm can be used as an effec- tive video tracking and detection techniques used in the monitoring area of digital broadcast television.

关 键 词：视频拷贝检测 视频签名 时空分布 聚类索引表 

分 类 号：TN919.81[电子电信—通信与信息系统]