| 抗翻录攻击的鲁棒语音水印算法 |
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| 引用本文： | 刘正辉,张钰,秦兴红.抗翻录攻击的鲁棒语音水印算法[J].武汉大学学报(信息科学版),2021(2):303-308. |
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| 作者姓名： | 刘正辉 张钰 秦兴红 |
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| 作者单位： | 信阳师范学院计算机与信息技术学院;深圳大学信息工程学院深圳市媒体信息内容安全重点实验室 |
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| 基金项目： | 国家自然科学基金(61502409);深圳市媒体信息内容安全重点实验室开放基金(2018-05);信阳师范学院南湖学者奖励计划青年项目。 |
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| 摘 要： | 水印为数字音频的版权保护提供了一种技术手段.然而,随着录用设备的普及,翻录攻击成为一种去除水印信息的有效方法.为了提高水印算法的安全性,提出了一种鲁棒的抗翻录攻击的数字语音水印算法.定义了离散余弦系数对数均值(discrete cosine transform coefficients logarithm mean,D...
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| 关 键 词： | 数字语音 数字水印 去同步攻击 溯源追踪 |
Robust Speech Watermarking Algorithm Against Recapturing Attacks |
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| LIU Zhenghui,ZHANG Yu,QIN Xinghong.Robust Speech Watermarking Algorithm Against Recapturing Attacks[J].Geomatics and Information Science of Wuhan University,2021(2):303-308. |
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| Authors: | LIU Zhenghui ZHANG Yu QIN Xinghong |
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| Institution: | (College of Computer and Information Technology,Xinyang Normal University,Xinyang 464000,China;Shenzhen Kcy Laboratory of Media Scurity,College of Information Engineering.Shenzhen University,Shenzhen 518060,China) |
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| Abstract: | Watermarking provides a technical mean for copyright protection of digital audio. However,with the popularity of recording equipment, recapturing attack has become an effective method to remove audio watermarks. In order to improve the security of the watermarking system, we propose a robust speech watermarking algorithm against recapturing attacks. Firstly, we define the discrete cosine transform coefficients logarithm mean(DCT-CLM) feature and get the conclusion that the changes of DCT-CLM feature are very small after recapturing attacks. Secondly, Frame number and watermark are embedded together in frames by quantifying the DCT-CLM feature. Frame number is used to resynchronize watermarked speech after the signal is subjected to de-synchronization attacks. If watermarked frame is synchronized, we extract watermark bits from the frame for resource tracing. Compared with other speech watermarking algorithms, the algorithm proposed in this paper is not only robust against de-synchronization attacks, but also robust against recapturing attacks. |
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| Keywords: | digital speech digital watermarking de-synchronization attacks resource tracing |
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