面向网关版权保护的抗几何攻击视频水印方法

被引：1

作者：

刘洪滨

杜玲

姬红利

机构：

[1] 天津大学计算机科学与技术学院

来源：

计算机应用 | 2013年 / 33卷 / 12期

关键词：

视频水印; 场景边界检测; 网关过滤; 版权保护; 最小生成树; 特征提取;

D O I：

暂无

中图分类号：

TP309.7 [加密与解密];

学科分类号：

081201 ; 0839 ; 1402 ;

摘要：

为了解决网关视频的版权保护问题,提出了一种网关视频水印快速嵌入和提取方法。该方法在视频帧内,首先以近线性时间检测和挑选仿射协变区域,然后采用基于最小生成树的区域选择算法消除重叠区域,最后以线性时间在离散小波变换域内嵌入水印;在视频帧间,利用视频场景的连续性基于场景边界仿射协变区域预测场景内部仿射协变区域以达到整体加速的目的。攻击实验表明:对测试序列嵌入水印后,针对几何攻击和格式变换压缩攻击,水印检测准确率分别达到93%和83%以上。仿真实验表明:在400在线主机局域网内,该方法能在10帧以内成功阻断网关水印视频的传输。

引用

页码：3531 / 3535

页数：5

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