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首页> 外文期刊>The journal of China Universities of Posts and Telecommunications >Digital Watermarking Applied To MEPG-2 Coded Video Sequences Exploiting Motion Vector
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Digital Watermarking Applied To MEPG-2 Coded Video Sequences Exploiting Motion Vector

机译:数字水印技术应用于利用运动矢量的MPEG-2编解码器视频序列

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摘要

This paper proposes a video watermarking technology to hide copyright information by a slight modification of the motion vector in MPEG-2 video bitstream. In this method, the watermark is embedded in the motion residual of the large value motion vector, then the motion residual is regularized into a modified bitstream, from which the watermark information can be retrieved easily and exactly. From the experimental results, this technology has the advantage of little influence on the MPEG decoding speed, degrading the perceptive effect little, and the capability to embed watermark in a short video sequence, and can be used to watermark directly on the compressed and uncompressed video sequence.
机译:本文提出了一种视频水印技术,该技术通过对MPEG-2视频比特流中的运动矢量稍加修改来隐藏版权信息。在这种方法中,将水印嵌入大值运动向量的运动残差中,然后将运动残差正规化为修改后的比特流,从中可以轻松,准确地检索到水印信息。从实验结果来看,该技术的优点是对MPEG解码速度的影响很小,对感知效果的影响很小,并且能够在短视频序列中嵌入水印,并且可以用于在压缩和未压缩的视频上直接水印。序列。

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