| 基于局部排序的视频拷贝检测 |
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| 引用本文： | 赵玉鑫,刘光杰,戴跃伟,王执铨.基于局部排序的视频拷贝检测[J].计算机辅助设计与图形学学报,2009,21(9). |
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| 作者姓名： | 赵玉鑫 刘光杰 戴跃伟 王执铨 |
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| 作者单位： | 南京理工大学自动化学院南京210094 |
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| 基金项目： | 国家自然科学基金，江苏省"青蓝工程"中青年学术带头人培养基金，南京理工大学博士研究生创新培养基金 |
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| 摘 要： | 排序法是一种常用的视频拷贝检测方法.为获得更佳的检测性能,提出一种基于排序特征的视频拷贝检测方案.该方案将帧进行分块,并按照Hilbert曲线顺序分别计算曲线上相邻块的灰度关系排序特征,生成用于检测的哈希码;为了准确地在目标视频中定位可疑内容,提H{了哈希匹配方案,将序列相似度作为匹配的依据,并引入动态规划的方法提高匹配精度;最后构造了拷贝测试样本,并与传统的排序签名检测方案进行性能对比实验.结果表明,文中方案拥有较好的检测性能,适用于视频内容的拷贝检测.
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| 关 键 词： | 排序特征 拷贝检测 视频哈希 |
Video Copy Detection based on Local Ordinal |
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| Zhao Yuxin,Liu Guangjie,Dai Yuewei,Wang Zhiquan.Video Copy Detection based on Local Ordinal[J].Journal of Computer-Aided Design & Computer Graphics,2009,21(9). |
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| Authors: | Zhao Yuxin Liu Guangjie Dai Yuewei Wang Zhiquan |
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| Affiliation: | School of Automation;Nanjing University of Science and Technology;Nanjing 210094 |
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| Abstract: | The ordinal is a popular method used in video copy detection. In this work,an efficient content-based copy detection approach is proposed with novel ordinal features. The features are obtained from intensity relation between adjacent blocks of each frame which obey Hilbert curve order and used to generate hash bits. To effectively localize a short query video clip in a long target video,hash comparison scheme is developed. In the scheme,sequence similarity rate is proposed to handle similarity matching,and ... |
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| Keywords: | ordinal feature copy detection video hash |
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