| 基于Rough Set的镜头分割方法 |
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| 引用本文： | 韩加亮,吴渝,林玉宝.基于Rough Set的镜头分割方法[J].计算机工程与应用,2007,43(36):185-188. |
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| 作者姓名： | 韩加亮 吴渝 林玉宝 |
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| 作者单位： | 重庆邮电大学人工智能研究所,重庆,400065;燕山大学信息科学与工程学院,河北,秦皇岛,066004 |
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| 基金项目： | 重庆市自然科学基金
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教育部跨世纪优秀人才培养计划
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重庆市教委资助项目 |
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| 摘 要： | 综合利用了MPEG视频流P帧的运动特征、像素差和直方图差特征，提出了一种基于Rough Set的镜头分割方法。该方法首先提取视频流中P帧的宏块信息，然后分析得到其运动活力性、宏块类型和运动空间分布，再结合这些帧的像素差特征和直方图差特征，利用Rough Set对这些特征进行约减后，对镜头切换处进行识别。实验表明，该方法能有效地区分镜头的突变，对渐变也能很好地检测。
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| 关 键 词： | Rough set 运动信息 突变 渐变 |
| 文章编号： | 1002-8331(2007)36-0185-04 |
| 修稿时间： | 2007年7月1日 |
Shot boundary detection based on Rough Set |
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| HAN Jia-liang,WU Yu,LIN Yu-bao.Shot boundary detection based on Rough Set[J].Computer Engineering and Applications,2007,43(36):185-188. |
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| Authors: | HAN Jia-liang WU Yu LIN Yu-bao |
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| Affiliation: | 1.Institute of Artificial Intelligence，Chongqing University of Posts and Telecommunications，Chongqing 400065，China 2.College of Information Science and Engineering，Yanshan University，Qinhuangdao，Hebei 066004，China |
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| Abstract: | An approach to shot boundary detection by Rough Set is introduced which comprehensively utilizes the motion features of P frame in MPEG video sequence,the difference of pixel and the difference of histogram.First,some information of macro blocks is extracted in P frame of MPEG video sequence.Then the information analyzed and the motion-activity,the type of macro blocks and the motion-distribution are gotten.Combined these parameters with the difference of pixel and the difference of histogram the shot-boundary detection can be achieved according to the Rough Set after being reduced.Experimental results show that it can effectively distinguish the hard cut and gradual transition. |
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| Keywords: | Rough Set motion information hard cut gradual transition |
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