| 基于DWT DCT SVD的音频盲水印算法 |
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| 引用本文： | 雷敏,杨榆.基于DWT DCT SVD的音频盲水印算法[J].北京邮电大学学报,2011,34(Z1):51-54. |
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| 作者姓名： | 雷敏 杨榆 |
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| 作者单位： | 北京邮电大学软件学院;北京邮电大学信息安全中心; |
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| 基金项目： | 国家重点基础研究发展计划项目(2007CB311203); 国家自然科学基金项目(60821001,90604022); 中央高校基本科研业务费专项资金项目(BUPT2009RC0215) |
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| 摘 要： | 提出了一种结合离散小波变换（DWT）、离散余弦变换（DCT）和奇异值分解（SVD）的音频盲水印方法，将原始音频数据分段后进行二级小波变换，再将近似分量进行余弦变换，把余弦变化后的前1/4系数进行奇异值分解后嵌入水印. 水印的嵌入容量为2756 bit/s. 实验结果表明，该算法具有较好的透明性，并且对于MP3压缩、重量化、重采样、低通滤波、裁剪替换、高斯加噪等常见音频信号处理攻击具有很强的鲁棒性.
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| 关 键 词： | 小波变换 奇异值分解 盲水印 |
An Audio Blind Watermarking Scheme Based on DWT-DCT-SVD |
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| LEI Min,YANG Yu.An Audio Blind Watermarking Scheme Based on DWT-DCT-SVD[J].Journal of Beijing University of Posts and Telecommunications,2011,34(Z1):51-54. |
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| Authors: | LEI Min YANG Yu |
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| Affiliation: | LEI Min1,2,YANG Yu2 (1.School of Software Engineering,Beijing University of Posts and Telecommunications,Beijing 100876,China,2.Information Security Center,China) |
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| Abstract: | A new audio blind watermarking scheme based on discrete wavelet transform-discrete cosine transform-singular value decomposition(DWT-DCT-SVD) is proposed.In this algorithm,the audio is split as blocks,and each block is decomposed on two-dimensional DWT,then the approximate sub-band coefficients are decomposed on DCT,and the first quarter of the DCT coefficients are decomposed on SVD transform and get a diagonal matrix.At last,the watermarking information is embedded into the diagonal matrix.The watermark em... |
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| Keywords: | discrete wavelets transform singular value decomposition blind watermarking |
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