视频广告侦测系统的设计与分析  

Design and analysis of TV advertisements detector

作　　者：李春亮[1] 老松杨[1] 张枣[1] 

机构地区：[1]国防科学技术大学信息系统与管理学院,湖南长沙410073

出　　处：《计算机工程与设计》2006年第3期504-505,518,共3页Computer Engineering and Design

摘　　要：介绍了一个实用的视频广告自动侦测器系统。给出了视频广告自动侦测器的设计步骤、设计原理和实验结果。探讨了视频的MPEG编码方式和基于DC分量的帧匹配算法,为了提高视频段匹配速度,提出了基于镜头长度序列的镜头相似匹配的视频段匹配算法。最后形成了适用于视频广告侦测的帧匹配与镜头长度序列相结合的视频段匹配算法。实验结果证明了算法的可行性和高效性。A practicable TV advertisement auto-detector was presented which could tell times and when an advertisement unit is broadcasted by a TV station. Steps, principles of design, and results of experiments were introduced. Frame-based video segment matching algorithm and shots＇ length-based video segments matching algorithm were researched. On the base of both algorithms ahead, algorithm for auto-detect TV Advertisements was reached. Results of experiments showed the algorithms＇ advantages and plausibility.

关 键 词：视频广告自动侦测器 广告单元 宏块匹配 镜头匹配 

分 类 号：TN941.1[电子电信—信号与信息处理]