基于MPEG视频的镜头检测系统研究  

Study on Shot Detection System in MPEG Compressed Video

作　　者：唐跃林[1] 周长国[1] 肖沙里[1] 姚富光[1] 丘柳东[1] 周宴[1] 

机构地区：[1]重庆大学光电技术及系统教育部重点实验室,重庆400044

出　　处：《仪器仪表学报》2004年第z3期81-83,97,共4页Chinese Journal of Scientific Instrument

摘　　要：镜头检测是实现基于内容的视频检索的首要问题,文中在讨论镜头切变与渐变检测算法的基础上,实现了基于MEPG视频的镜头检测系统。系统采用了“滑动”窗口法来实现镜头的切变与渐变的检测。同时,通过直接从MPEG- 1压缩视频流中提取信息,实现了在压缩域内的镜头检测。实验结果表明,系统对镜头切变的检测取得了良好的效果。同时,也可以对滑动、淡入淡出、擦除等渐变进行检测。系统采用了Direct show作为对视频的支持,具有良好的通用性及人机交互界面,满足了视频检索系统对界面的要求。Shot detection is the fundamental operation in content-based video retrieval, It realized a shot detection system in MPEG compressed video based on discussing the algorithm of abrupt and gradual shot detection. The sliding window algorithm is chosen to detect both abrupt and gradual shot in system, and a fast abrupt shot detection algorithm using direct feature extracted from MPEG-1 compressed video is also adopted. The experiment results show the abrupt detection is excellent and the gradual shot such as sliding, fade in and fade out, wipe etc. can also be detected. As DirectShow is introduced to deal with MPEG video, system is universal and has good interface. It can meet requires of content-based multimedia retrieval system.

关 键 词：镜头检测 基于内容视频检索 MPEG压缩域 DIRECT SHOW 

分 类 号：TH7-55[机械工程—仪器科学与技术]