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首页> 外文期刊>Journal of visual communication & image representation >A robust watermarking framework for High Efficiency Video Coding (HEVC) - Encoded video with blind extraction process
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A robust watermarking framework for High Efficiency Video Coding (HEVC) - Encoded video with blind extraction process

机译：高效视频编码（HEVC）的强大水印框架-具有盲提取过程的编码视频

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摘要

Digital watermarking is an efficient and promising means for copyright protection of multimedia objects. Digital videos are stored and transmitted in a compressed format, which has drawn a great deal of attention in compressed domain watermarking for video. The embedding and extraction of watermark bits in compressed domain, therefore does not require complete decoding and re-encoding of the compressed video. There have been several compression standards for video. High Efficiency Video Coding (HEVC), a successor to H.264 Advanced Video Coding (AVC), is the latest standard for video compression with high compression efficiency. In this paper, we propose a robust watermarking framework with a blind extraction process for HEVC encoded video. A readable watermark is embedded invisibly in 4 x 4 intra predicted blocks of the HEVC encoded video. Our watermarking framework enforces security by exploring the spatio-temporal characteristics of the compressed video and a random key for selection of embedding regions. We also analyze the strengths of different compressed domain features of HEVC encoded video for implementing the embedding algorithm. Experimental results demonstrate that the proposed work restrict the increase in video bit rate and degradation of perceptual quality. The proposed framework can also survive filtering, compressions, and noise additions maintaining good quality and robustness. (C) 2016 Elsevier Inc. All rights reserved.
机译：数字水印是多媒体对象版权保护的有效且有前途的手段。数字视频以压缩格式存储和传输，这在视频的压缩域水印中引起了极大的关注。因此，在压缩域中嵌入和提取水印位不需要完全对压缩视频进行解码和重新编码。有几种视频压缩标准。 H.264高级视频编码（AVC）的后继产品高效视频编码（HEVC）是具有高压缩效率的视频压缩的最新标准。在本文中，我们针对HEVC编码视频提出了一种具有盲提取过程的健壮水印框架。可读水印不可见地嵌入HEVC编码视频的4 x 4帧内预测块中。我们的水印框架通过探索压缩视频的时空特性和用于选择嵌入区域的随机密钥来增强安全性。我们还分析了HEVC编码视频不同压缩域特征的优势，以实现嵌入算法。实验结果表明，提出的工作限制了视频比特率的增长和感知质量的下降。所提出的框架还可以在保持良好质量和鲁棒性的情况下经受住滤波，压缩和添加噪声的影响。 （C）2016 Elsevier Inc.保留所有权利。

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