| 兰宇琳.数字图书馆音频信息资源版权保护研究[J].数字图书馆论坛,2015,(1):42~46 |
| 数字图书馆音频信息资源版权保护研究 |
| Research on Copyright Protection of Audio Resource in Digital Library |
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| DOI： |
| 中文关键词: 数字音频水印算法;奇异值分解;独立成分分析;离散小波变换 |
| 英文关键词: Digital audio watermarking algorithm;Singular value decomposition;Independent component analysis;Discrete wavelet transform |
| 基金项目:本研究得到湘南学院2014年度科研基金校级项目“基于数字水印技术的数字图书馆版权保护研究”(编号2014XJ62)资助。 |
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| 中文摘要: |
| 针对数字图书馆的音频资源版权保护问题，提出一种基于奇异值分解及独立成分分析的数字音频水印算法。奇异值分解具有数据压缩的特性，将水印信息经过奇异值分解处理，可大大提升水印容量，而独立成分分析理论可实现水印的盲提取。选择小波变换后的低频系数作为水印嵌入点，以平衡水印的鲁棒性和透明性。采用二值图像作为水印进行仿真实验，实验结果显示该水印方案具有较好的鲁棒性、透明性。 |
| 英文摘要: |
| This paper proposed a digital audio watermarking scheme based on Singular Value Decomposition(SVD) and Independent Component Analysis (ICA),in order to solve the copyright protection issues in digital library. The watermark information processed by the SVD which has the data compressed feature enhances the watermark capacity. ICA used for watermark extraction and achieve the blind extraction. Select the low frequency coefficients after Discrete Wavelet Transform(DWT) as an embedded point, in order to balance the transparency and robustness of the audio. The experiment results show that the proposed scheme has good robustness against common at acks, as wel as transparency. |
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