基于CAVLC拖尾系数的H.264/AVC视频信息隐藏算法
H.264/AVC Video Information Hiding Algorithm Based on CAVLC Trailing Coefficient
DOI: 10.12677/CSA.2018.84057, PDF,    国家自然科学基金支持
作者: 王克明, 马春波*：桂林电子科技大学信息与通信学院，广西 桂林
关键词: 视频信息隐藏；H.264/AVC；CAVLC；拖尾系数；Video Information Hiding； H.264/AVC； CAVLC； Trailing Coefficient
摘要: 针对H.264/AVC视频编码标准熵编码域大容量隐藏的需求，本文提出了一种基于CAVLC (Context Adaptive Variable Length Coding)拖尾系数的H.264/AVC视频信息隐藏方法，通过调制合适的4 × 4亮度DCT块的拖尾系数符号嵌入秘密信息。该方法根据拖尾系数数目调整秘密信息映射规则。信息提取过程不需要原始视频，也不需要完全解码，只解码CAVLC过程拖尾系数符号即可。实验结果表明，该算法在不改变比特率及不影响视频主观质量情况下，具有较高的嵌入效率和容量。
Abstract: In order to meet the requirement of large capacity concealment of entropy coding domain of H.264/AVC video coding standard, this paper proposes a H.264/AVC video information hiding method based on tailing coefficients of CAVLC (Context Adaptive Variable Length Coding). The secret information is embedded by modulating the trailing coefficient symbol of the 4 × 4 luma DCT block. The method adjusts the secret information mapping rule according to the number of trailing coefficients. The information extraction process does not require the original video and complete decoding, and only decodes the trailing coefficient symbols of the CAVLC process. Experimental results show that the algorithm has high embedding efficiency and capacity without changing the bit rate and without affecting the subjective quality of the video.
文章引用：王克明, 马春波. 基于CAVLC拖尾系数的H.264/AVC视频信息隐藏算法[J]. 计算机科学与应用, 2018, 8(4): 512-521. https://doi.org/10.12677/CSA.2018.84057

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