一种用于视频流的强鲁棒性数字水印方案

Robust Digital Watermarking Scheme for Video Stream

研究了视频流的水印嵌入和提取,为视频流提供版权保护。针对现阶段越来越多的视频流盗版现状,为了保护版权方的利益,提出了一种将版权方信息作为数字水印嵌入到视频流中的方法。通过该方法,在视频流中嵌入了不易破坏的版权方的信息,该信息可作为流媒体的追溯标记和证据。经实验证明:改进方案与其他数字水印方案相比,具有很强的鲁棒性,可抵抗视频的重复编码,抵抗分辨率缩放,抵抗一定程度的内容修改,支持水印的盲提取。

To provide copyright protection for video stream, the watermark embedding and extraction were stud- ied. For more and more of stream piracies, in order to protect the interests of copyright side, the paper presented a digital watermark embedding method which puts copyright information into video stream. Using this method, the in- formation embedded in the video stream is not easy to be damaged. And the information can be the retrospectively la- bel and evidence for the streaming media. The experiment shows that： compared with other digital watermarking schemes, it has a strong robustness to resist the repeated video encoding, resolution scaling and a certain degree of content changes, h also supports watermark extraction.