视频水印算法------外文翻译.doc

摘要
在当今的视频传输与广播网络中，版权的保护问题已经变得越来越紧迫。这是因为视频拷贝的出现并没有降低原始视频文件的品质。一种保护版权的方法是在视频序列中嵌入一段数字密码，这段数字密码的学术名称叫做水印。
因此，这篇课题的目的就是研究低复杂度的压缩域H.264视频水印算法。视频编码标准决定了H.264/MPEG-4 AVC的压缩标准。这种算法充分使用了H.264压缩标准了明确性，原始视频的水印也是被随机嵌入的。这些都建立在水印算法安全的基础上。
在这种基于压缩域的H.264视频水印算法方案中，水印可以在没有原始视频序列存在的条件下被检测出来。水印可以在所选的编码器修正系数 的帮助下提取出

ABSTRACT
In today's video delivery and broadcast networks, issues of copyright protection have become more urgent than in analog times. This is simply due to copying of digital video does not result in the decrease in quality that occurs when analog video is copied. One of the methods of copyright protection is to embed a digital code into the video sequence. The digital code is termed as watermark..
Therefore, the objective of this project is to propose a digital video watermarking algorithm for H.264 in the compressed, domain whose complexity is low. The video coding standard decided to use was the H.264/MPEG4 AVC compression standard. The proposed algorithm exploits the specific characteristics of the compression standard H.264. The watermark to be embedded into the original video is randomly localized. It is on this foundation that our proposed video watermarking algorithm bases its secureness.