| 基于代价策略的H.264/AVC半脆弱水印算法 |
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| 引用本文： | 张维纬,赵 宸,黄德天,张 沛,杨义先.基于代价策略的H.264/AVC半脆弱水印算法[J].通信学报,2015,36(10):110-118. |
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| 作者姓名： | 张维纬 赵 宸 黄德天 张 沛 杨义先 |
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| 基金项目： | The Research Foundation of Huaqiao University;The Science and Technology Development Founda-tion of Quanzhou City;The Natural Science Foundation of Fujian Province;The Special Foundation of Fujian Provincial Department of Science and Technology |
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| 摘 要： |
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Semi-fragile video watermarking algorithm for H.264/AVC based on cost strategy |
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| Wei-wei ZHANG,Chen ZHAO,De-tian HUANG,Pei ZHANG,Yi-xian YANG.Semi-fragile video watermarking algorithm for H.264/AVC based on cost strategy[J].Journal on Communications,2015,36(10):110-118. |
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| Authors: | Wei-wei ZHANG Chen ZHAO De-tian HUANG Pei ZHANG Yi-xian YANG |
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| Affiliation: | 1. College of Engineering,Huaqiao University,Quanzhou 362021,China;2. National Computer Network and Information Security Management Center,Beijing 100031,China;3. Information Security Center,Beijing University of Posts and Telecommunications,Beijing 100876,China |
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| Abstract: | In order to solve some existing problems on detecting malicious tampering by video watermarking based on H.264/AVC video compression standard,a semi-fragile video watermarking algorithm for H.264/AVC based on cost strategy was proposed.To further improve the robustness of the feature codes in semi-fragile video watermarking algorithm,a new generation algorithm for feature codes by eliminating the correlation of them was proposed.In order to meet the requirement that the semi-fragile watermarks should be uniformly embedded into the video frames to locate the tampered region accurately,a minimal cost function was introduced to select a DCT coefficient in the 4 × 4 block residual to embed watermark which had minimal impact on the video quality and bit rates.Experimental results show that the proposed algorithm can significantly reduce impact on video quality and bit rate because of embedding the watermarking by adopting the minimum cost function and it is sensitive to malicious manipulations.The retrieved feature code and watermarking can detect and locate malicious manipulations. |
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| Keywords: | semi-fragile watermarking cost strategy H 264/AVC tamper localization robustness |
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