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首页> 外文期刊>ACM transactions on multimedia computing communications and applications >An Efficient Framework for Compressed Domain Watermarking in P Frames of High-Efficiency Video Coding (HEVC)-Encoded Video
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An Efficient Framework for Compressed Domain Watermarking in P Frames of High-Efficiency Video Coding (HEVC)-Encoded Video

机译：高效视频编码（HEVC）编码视频P帧中压缩域水印的高效框架

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摘要

Digital watermarking has received much attention in recent years as a promising solution to copyright protection. Video watermarking in compressed domain has gained importance since videos are stored and transmitted in a compressed format. This decreases the overhead to fully decode and re-encode the video for embedding and extraction of the watermark. High Efficiency Video Coding (HEVC/H.265) is the latest and most efficient video compression standard and a successor to H.264 Advanced Video Coding. In this article, we propose a robust watermarking framework for HEVC-encoded video using informed detector. A readable watermark is embedded invisibly in P frames for better perceptual quality. Our framework imposes security and robustness by selecting appropriate blocks using a random key and the spatio-temporal characteristics of the compressed video. A detail analysis of the strengths of different compressed domain features is performed for implementing the watermarking framework. We experimentally demonstrate the utility of the proposed work. The results show that the proposed work effectively limits the increase in video bitrate and degradation in perceptual quality. The proposed framework is robust against re-encoding and image processing attacks.
机译：近年来，数字水印作为版权保护的一种有希望的解决方案受到了广泛关注。由于视频以压缩格式存储和传输，因此压缩域中的视频水印变得越来越重要。这减少了完全解码和重新编码视频以嵌入和提取水印的开销。高效视频编码（HEVC / H.265）是最新，最高效的视频压缩标准，是H.264高级视频编码的后继产品。在本文中，我们为使用知情检测器的HEVC编码视频提出了鲁棒的水印框架。可读水印不可见地嵌入P帧中，以获得更好的感知质量。我们的框架通过使用随机密钥和压缩视频的时空特性选择适当的块来强加安全性和鲁棒性。为了实现水印框架，对不同压缩域特征的强度进行了详细分析。我们通过实验证明了拟议工作的实用性。结果表明，所提出的工作有效地限制了视频比特率的增长和感知质量的下降。所提出的框架对于重新编码和图像处理攻击是鲁棒的。

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