Low Complexity Video Watermarking Algorithm by Exploiting CAVLC in H.264/AVC
As H.264/AVC digital video becomes more prevalent, issues of copyright protection and authentication that appropriate for this standard become very important. In this paper, an authentication watermarking algorithm for H.264/AVC compressed video by modulating CAVLC code words of 4×4 luminance blocks is proposed. During the embedding process, the eligible code words are first identified, and then the modulating rules between these code words and the watermark bits are established. The watermark information can be extracted directly from the encoded stream without resorting to the original video, and merely requires decoding the CAVLC code from bit stream rather than decoding the whole video. Experimental results show that the proposed watermarking scheme can effectively embed watermark information with little bit rate increase and almost no quality degradation.
Compressed domain watermarking H.264/AVC Context-adaptive variable length coding (CAVLC) Integrity verification (key words)
Da-wen Xu Rang-ding WANG Ji-chengWANG
School of Electronics and Information Engineering Ningbo University of Technology Ningbo, 315016, Ch CKC software lab Ningbo University Ningbo, 315211, China Department of Computer Science and Technology Tongji University Shanghai, 201804, China
国际会议
北京
英文
1-5
2010-06-25（万方平台首次上网日期，不代表论文的发表时间）