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| 抵抗线性共谋攻击的空域自适应视频水印方案 | |
| 引用本文： | 刘丽,彭代渊,李晓举.抵抗线性共谋攻击的空域自适应视频水印方案[J].西南交通大学学报,2007,42(4):456-460. |
| 作者姓名： | 刘丽 彭代渊 李晓举 |
| 作者单位： | 1. 西南交通大学信息安全与国家计算网格实验室,四川,成都,610031;郑州航空工业管理学院计算机科学与应用系,河南,郑州,450015 2. 西南交通大学信息安全与国家计算网格实验室,四川,成都,610031 3. 西南交通大学信息科学与技术学院,四川,成都,610031 |
| 基金项目： | 国家自然科学基金资助项目(60572142)，河南省科技攻关项目(0624220058) |
| 摘 要： | 针对视频水印中存在的线性共谋攻击问题,建立了线性共谋攻击的数学模型,并根据建立的数学模型提出了抵抗线性共谋攻击的视频水印设计规则.基于该规则,提出了一种有效抵抗线性共谋攻击的视频水印方案.该方案从视频帧中自适应地选取一些互不重叠的8×8的块(子帧)作为嵌入区域,嵌入强度自适应于相应子帧的方差.实验表明,该算法在经过线性共谋、帧去除、帧插入、帧重组以及MPEG-2压缩等各种攻击后,水印提取的正确率仍可达到100%. |
| 关 键 词： | 视频水印 线性共谋 噪声可见度函数 |
| 文章编号： | 0258-2724（2007）04-0456-05 |
| 修稿时间： | 2006-08-08 |
Adaptive Video Watermarking Scheme for Effective Resistance to Linear Collusion in Spatial Domain |
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| LIU Li,PENG Daiyuan,LI Xiaoju.Adaptive Video Watermarking Scheme for Effective Resistance to Linear Collusion in Spatial Domain[J].Journal of Southwest Jiaotong University,2007,42(4):456-460. | |
| Authors: | LIU Li PENG Daiyuan LI Xiaoju |
| Institution: | 1. Information Security and National Computing Grid Lab. , Southwest Jiaotong University, Chengdu 610031, China; 2. Dept. of Computer Science and Application, Zhengzhou Institute of Aeronautical Industry Management, Zhengzhou 450015, China; 3. School of Information Science and Tech. , Southwest Jiaotong University, Chengdu 610031, China |
| Abstract: | A mathematical model was established to solve the problem of linear collusion attacks in video watermarking.From this model,the design rules of video watermarking for resistance to linear collusion were put forward.In addition,an adaptive video watermarking algorithm for effective resistance to linear collusion was proposed.Furthermore,some nonoverlapping blocks(subframes) 8 by 8 were adaptively selected as embedding regions,and watermark strength was adapted proportionally to the variances of the subframes.The experimental results show that with the proposed algorithm,the correct rate to extract watermark can reach 100% after linear collusion,frame removal,frame insertion,frame reorganization and MPEG(moving picture experts group)-2 compression. |
| Keywords: | video watermarking linear collusion noise visibility function |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |