| 一种MPEG压缩视频的镜头边界检测算法 |
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| 引用本文： | 万伟,张国平,陈明宏,夏洪星. 一种MPEG压缩视频的镜头边界检测算法[J]. 电视技术, 2005, 0(1): 29-32 |
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| 作者姓名： | 万伟 张国平 陈明宏 夏洪星 |
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| 作者单位： | 华中师范大学,物理科学与技术学院,湖北,武汉,430079 |
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| 摘 要： | 提出一种工作在MPEG压缩域的检测算法.首先从压缩视频中提取DC图像和重构参考帧,然后经过全局运动补偿之后进行基于边对象变化率的镜头分割点检测,最后结合DC图直方图差法构成联合检测算法.本算法能准确地检测到镜头渐变,镜头切变,能得到渐变类型等特性.用AdobePremiere5.1生成的各类镜头转换视频片段进行检测,实验结果验证了算法的有效性.
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| 关 键 词： | 镜头分割 渐变 直流序列 MPEG-1标准 |
| 文章编号： | 1002-8692(2005)01-0029-04 |
| 修稿时间： | 2004-10-14 |
A Transition Detection Method in MPEG Compressed Sequences |
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| WAN Wei,ZHANG Guo-ping,CHEN Ming-hong,XIA Hong-xing. A Transition Detection Method in MPEG Compressed Sequences[J]. Ideo Engineering, 2005, 0(1): 29-32 |
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| Authors: | WAN Wei ZHANG Guo-ping CHEN Ming-hong XIA Hong-xing |
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| Abstract: | Many video segmentation algorithms can detect cuts efficiently, but detection of gradual transition is still a problem. In this paper, a new transition detection method in MPEG compressed domain is presented. First, the algorithm constructs edge objects from the DC reference image, then, after globe motion compensation the shot boundaries are detected. Finally, a two-pass processing is carried out. Then experiments show that this is a robust and fast algorithm. |
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| Keywords: | shot segmentation transition DC sequences MPEG-1 |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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