| 一种基于DWT的同步数字音频水印算法 |
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| 引用本文： | 王晶,董海鹰.一种基于DWT的同步数字音频水印算法[J].电子质量,2007(6):11-13. |
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| 作者姓名： | 王晶 董海鹰 |
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| 作者单位： | 1. 兰州交通大学,光电技术与智能控制教育部,重点实验室,兰州,730070
2. 兰州交通大学,电子与信息工程学院,兰州,730070 |
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| 摘 要： | 本文提出了一种基于离散小波变换的同步数字音频盲水印算法。嵌入的水印为视觉上可辨的二值图像。算法中引入了嵌入同步信号的思想，利用同步信号定位水印的嵌入位置。为了提高信号的鲁棒性，把同步信号与水印隐藏在DWT域的低频系数中。同时，检测水印时不需要原始音频。仿真实验表明，所提出的方法具有较强的鲁棒性和不可感知性，并能有效抵御各种常见攻击。
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| 关 键 词： | 数字音频水印 离散小波变换 同步信号 盲水印 |
| 文章编号： | 1003-0107（2007）06-0011-03 |
An Algorithm of Synchronous Digital Audio Water marking Based on DWT |
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| Wang Jing,Dang Hai-ying.An Algorithm of Synchronous Digital Audio Water marking Based on DWT[J].Electronics Quality,2007(6):11-13. |
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| Authors: | Wang Jing Dang Hai-ying |
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| Affiliation: | 1 .Key Laboratory Opto-Electronic Technology and Inteiligent Control, Ministry of Education, Lanzhou Jiaotong University ,Lanzhou 730070,China ; 2.School of Electronic and Information Engineering, Lanzhou Jiaotong University, Lanzhou730070, China |
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| Abstract: | An algorithm of blind synchronous digital audio watermarking based on Discrete Wavelet Transform (DWT) is proposed. The watermark embedded in this algorithm is a significant binary. The idea of embedding synchronic signal which used the synchronic signal to search the watermark location was introduced. In order to enhance robustness, synchronic signal and watermark were embedded in the lowest frequency of DWT. Detection of the watermarking can be conducted without original audio frequency. Simulation results show that the algorithm has good imperceptibility and robustness, and can against common signal processing manipulations. |
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| Keywords: | Digital audio watermarking Discrete wavelet transform (DWT) Synchronic signal Dlind watermarking |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
