视频镜头边界检测整体方案的设计与实现  

Design and implementation of general shot boundary detection scheme

作　　者：黄晶[1] 黄孝建[1] 陈杲[2] 

机构地区：[1]北京邮电大学多媒体通信中心,北京100876 [2]中国科学院计算技术研究所,北京100080

出　　处：《计算机工程与应用》2007年第23期205-207,210,共4页Computer Engineering and Applications

摘　　要：由于DC系数不需要完全解码就能从MPEG码流中容易地提取且采用DC系数恢复的图像在计算帧间特征值差时能克服小运动的影响,同时具有抗噪声干扰的特性,基于对DC图像序列的处理,设计并实现了针对切变和渐变的整体检测方案。实验结果表明该方案对这两种镜头边界均能取得良好的检测效果。DC image sequences can be extracted from MPEG coded stream without fully decoding and are robust against noise and small motion influences when computing feature differences between frames.So in this paper,we design and develop a general detecting scheme for cut transition and gradual transition based on processing of DC image sequences rather than the decoded image sequences.Experiment results show that this scheme performs well for both cut and gradual transition detection.

关 键 词：切变检测 渐变检测 整体方案 

分 类 号：TP37[自动化与计算机技术—计算机系统结构] TP391[自动化与计算机技术—计算机科学与技术]