摘要
应用通信领域的码分多址技术对视频水印方案进行一次探讨,将待嵌入的水印信息使用循环码编码以后,使用码分多址技术对视频每一帧中Blue分量进行水印嵌入操作。通过相关检测提取水印,不需要原始视频文件,嵌入和提取算法简单易懂。通过仿真实验,使用该方法嵌入水印信息不影响视频流的完整性和一致性,人的感官系统不能分辨出嵌入水印以后的视频和原始视频之间的区别。该水印系统可以应用在视频版权保护和监视特定视频是否播放的场合。
This paper has designed a new watermarking scheme for video using the CDMA(Code Division Multiple Access) technique in communication field.The process is that the encoded information is embeded into the Blue component of every frame utilizing CDMA technique after watermark information is encoded using cyclic codes.Compute correlation coefficient to retrieve the watermark.The de-tection processing of the scheme does not need original video file.The embeding algorithm and the retrieving algorithm can be compre-hended easily.The experiments show that the method of embedding do not depress the integrity and consistency of video and the HVS can not identify the difference between watermarked video and original video.The watermarking scheme can be used in applications for copyright protection and broadcast monitoring.
作者
刘青瑞
杨丽红
LIU Qing-rui,YANG Li-hong(Northeastern University,Shenyang 110004,China)
出处
《电脑知识与技术》
2008年第12X期2640-2642,共3页
Computer Knowledge and Technology
关键词
数字水印
视频水印
码分多址
通信模型
digital watermarking
video watermarking
CDMA(Code Division Multiple Access)
communication mode
