| MPEG压缩域多尺度镜头切变检测算法 |
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| 引用本文： | 胡新韬,郭雷,任建峰.MPEG压缩域多尺度镜头切变检测算法[J].计算机应用,2005,25(6):1302-1304. |
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| 作者姓名： | 胡新韬 郭雷 任建峰 |
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| 作者单位： | 西北工业大学,自动化学院,陕西,西安,710072;西北工业大学,自动化学院,陕西,西安,710072;西北工业大学,自动化学院,陕西,西安,710072 |
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| 基金项目： | 国家自然科学基金资助项目(60175001) |
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| 摘 要： | 如何在压缩域进行镜头的切变检测一直是视频自动索引和检索中的难点。提出了一种MPEG压缩域多尺度镜头切变检测算法,在GOP、slot和B帧三个尺度上对MPEG视频流进行分析。通过对相邻I帧的检测,确定一个GOP中是否存在镜头切变;通过对slot的分析,确定镜头切变在GOP中所处的区域;通过对B帧的检测,确定镜头切变发生的确切位置。
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| 关 键 词： | 镜头切变检测 多尺度 压缩域 |
| 文章编号： | 1001-9081(2005)06-1302-03 |
Multi-scale algorithm of video shot cut detection on MPEG compressed domain |
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| HU Xin-tao,GUO Lei,REN Jian-feng.Multi-scale algorithm of video shot cut detection on MPEG compressed domain[J].journal of Computer Applications,2005,25(6):1302-1304. |
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| Authors: | HU Xin-tao GUO Lei REN Jian-feng |
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| Affiliation: | Institute of Automation, Northern Polytechnical University, Xi’an Shaanxi 710072, China |
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| Abstract: | Shot cut detection is one of the challenging problems in video auto-index and retrieval. A multi-scale algorithm of shot cut detection on MPEG compressed domain which analyzed the video stream on the scales of GOP, slot and B frames was proposed in this paper. The I frames in two adjacent GOP was examined to find if there were shot cut whitin the GOP; the area of the cut was located by analyzing the slot and the exact frame where the shot cut occurred was found by examining B frames between two reference frames. |
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| Keywords: | shot cut detection multi-scale compressed domain |
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