arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1104.0085cs.CR
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基于小波熵优化的自适应音频水印

Adaptive Audio Watermarking via the Optimization Point of View on the Wavelet-Based Entropy

Shuo-Tsung Chen, Huang-Nan Huang, Chur-Jen Chen

摘要:

提出了一种基于小波熵的自适应音频水印算法。该方法将离散小波变换(DWT)的低频系数转换到WBE域,然后计算每个音频的平均值以及WBE的一些基本性质的推导。给出了小波系数与小波系数之间的关系曲线。嵌入过程的基础在于从每个音频的均值和特征曲线所展示的近似不变性。此外,水印音频的质量进行了优化。在检测过程中,水印的提取可以只使用WBE的值。最后,从信噪比、平均意见评分和鲁棒性等方面分析了该水印算法的性能。实验结果表明,嵌入的数据对重采样、MP3压缩、低通滤波、幅度缩放等常见攻击具有较好的鲁棒性

英文摘要:

This study aims to present an adaptive audio watermarking method using ideas of wavelet-based entropy (WBE). The method converts low-frequency coefficients of discrete wavelet transform (DWT) into the WBE domain, followed by the calculations of mean values of each audio as well as derivation of some essential properties of WBE. A characteristic curve relating the WBE and DWT coefficients is also presented. The foundation of the embedding process lies on the approximately invariant property demonstrated from the mean of each audio and the characteristic curve. Besides, the quality of the watermarked audio is optimized. In the detecting process, the watermark can be extracted using only values of the WBE. Finally, the performance of the proposed watermarking method is analyzed in terms of signal to noise ratio, mean opinion score and robustness. Experimental results confirm that the embedded data are robust to resist the common attacks like re-sampling, MP3 compression, low-pass filtering, and amplitude-scaling

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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