| 抗重压缩编码的3D-HEVC视频零水印算法 |
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| 引用本文： | 易银城,冯桂.抗重压缩编码的3D-HEVC视频零水印算法[J].信号处理,2020,36(5):778-786. |
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| 作者姓名： | 易银城 冯桂 |
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| 作者单位： | 华侨大学信息科学与工程学院 |
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| 基金项目： | 福建省自然科学基金项目(2016J01306)；福建省中青年教师教育科研项目(JAT160034)；华侨大学研究生科研创新基金资助项目(18013082035) |
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| 摘 要： | 考虑到零水印算法的优越性以及目前针对3D高效视频编码标准的视频水印算法少的情况，提出了一种抗重压缩编码的视频零水印算法。首先，利用I帧的深度图及非I帧的运动矢量和编码单元划分情况对水印的构造位置进行选择。其次，通过全相位双正交变换及奇异值分解对16x16块进行处理，获取最大奇异值的最高有效位作为最终的特征信息。最后，得到的特征信息与图像水印进行异或生成零水印并进行零水印注册。实验结果表明，在不同量化参数的重压缩编码攻击、基于帧及重压缩编码混合攻击和信号处理及重压缩编码混合攻击下，本文算法具有良好的鲁棒性。
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| 关 键 词： | 视频水印 3D-HEVC 零水印 视频编码 |
| 收稿时间： | 2020-01-17 |
A video zero-watermark algorithm against recompression coding for 3D-HEVC |
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| Affiliation: | College of Information Science and Engineering, Huaqiao University |
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| Abstract: | Considering the advantages of the zero-watermarking algorithm and the shortage of the video watermarking for 3-dimentional high efficiency video coding. A video zero-watermarking algorithm is proposed. Firstly, the depth map of I frame and the motion vectors and coding unit partitions of non-I frame are used to select the position for watermark construction. Secondly, apply all phase biorthogonal transform and singular value decomposition to 16 x 16 blocks to obtain the most significant bit of the maximum singular value, and define the most significant bit as the final charac-teristic information. Finally, the XOR operation between the characteristic information and image watermark is per-formed to generate the zero watermark for registration. The experimental results show that the proposed algorithm has excellent robustness under different quantization parameters which can resist recompression coding attack, hybrid attacks of frame-based and recompression coding and hybrid attacks of signal processing and recompression coding. |
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