一种含边信息的小波域视频水印算法  

Video Watermark Algorithm in Wavelet Domain with Side Information

作　　者：高智慧[1,2] 肖俊[1,2] 王颖[1,2] 姚志强[2] 

机构地区：[1]中国科学院研究生院,北京100049 [2]福建师范大学网络安全与密码技术重点实验室,福州350007

出　　处：《计算机工程》2009年第21期123-124,130,共3页Computer Engineering

基　　金：国家自然科学基金资助项目(60772155);北京市自然科学基金资助项目(4082029);福建省高校重点实验室开放课题基金资助项目(07A006)

摘　　要：利用帧内和帧间的边信息,提出一种含边信息的小波域视频水印算法。该算法以抖动调制为基础,以视频帧的运动特征和纹理特征作为边信息,自适应地确定抖动调制的量化步长。实验结果表明,该算法实现了视频水印的盲检测,具有良好的不可见性,对高斯噪声、帧平均、帧删除、帧置换等攻击具有较好的鲁棒性。By using side information in frame and between frames, this paper proposes a video watermark algorithm in wavelet domain with side information. In the algorithm, dither modulation is adopted, and the motion feature and texture feature are used as side information to determine the adaptive quantification step of every frame. Experimental results indicate that the algorithm can implement blinding examination and the invisibility is good. It is also robust to the special attacks of video watermark such as Gaussian noise, frame average, frame delete and frame displacement.

关 键 词：视频水印 小波域 边信息 抖动调制 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]