| 基于小波变换的数字水印隐藏与检测算法 |
| |
| 引用本文： | 钮心忻,杨义先. 基于小波变换的数字水印隐藏与检测算法[J]. 计算机学报, 2000, 23(1): 21-27 |
| |
| 作者姓名： | 钮心忻 杨义先 |
| |
| 作者单位： | 北京邮电大学信息安全中心,北京,100876 |
| |
| 基金项目： | 国家“八六三”高技术研究发展计划!( 863 -3 0 6-ZT0 5 -0 5 -2 ) |
| |
| 摘 要： | 主要研究了在数字语音信号中加入数字水印的方法，提出了一种基于小波变换的数字水印隐藏与检测算法，用这种算法隐藏水印具有很强的隐藏性，对原始语音的影响基本上察觉不出来。叠加了水印的语音在经过多种强干扰及各种信号处理的变换之后，使用本算法仍能正确检测出水印的存在，如它可以抵抗噪声干扰、去噪算法对信号进行去噪处理、语音信号的有损压缩以及信号的重新采样等。
|
| 关 键 词： | 数字水印 小波变换 信息隐藏 信息检测 语音信号 |
| 修稿时间： | 1999-02-11 |
A New Algorithm for Digital Watermarking Based on the Wavelet Transform |
| |
| NIU Xin-Xin,YANG Yi-Xian. A New Algorithm for Digital Watermarking Based on the Wavelet Transform[J]. Chinese Journal of Computers, 2000, 23(1): 21-27 |
| |
| Authors: | NIU Xin-Xin YANG Yi-Xian |
| |
| Abstract: | A new algorithm for digital audio watermarking is proposed in this paper. This algorithm bases on the wavelet transform. By using this algorithm, the watermarked speech signal sounds the same as the original one. The tiny difference is neglectable by human ear. The digital watermark can be easily detected by using this algorithm even though the watermarked speech signal being sorely contaminated. Simulation results were given to show the detection of the digital watermarking when the watermarked speech signal being processed or under strong noises. |
| |
| Keywords: | digital watermarking wavelet transform information hiding information detecting |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
