Zero-Watermark Resistant to MP3 Compression
Zero-Watermark Resistant to MP3 Compression
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DOI：
10.4028/www.scientific.net/amr.121-122.254
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发表时间：
2010-06
期刊：
影响因子：
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通讯作者：
Jinglong Zuo;De-long Cui
中科院分区：
文献类型：
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作者：
Jinglong Zuo;De-long Cui
大多数文献中的水印方案通常是通过在宿主媒体本身中嵌入一个标记来实现的。现有的数字水印技术都面临着水印嵌入带来的不可感知的质量下降以及不可感知性和鲁棒性之间的内在矛盾。本文提出了一种新的音频零水印内容认证方案。首先将音频按固定长度划分为帧，然后对每一帧进行三层提升小波变换，得到低频和高频分量。其次，使用非负矩阵分解（NMF）将音频帧近似表示为基矩阵和系数矩阵的乘积。最后计算系数矩阵中各列的和，并将其量化产生特征向量，然后通过计算水印和特征向量得到版权信息。实验结果表明，该方案对Mp3压缩具有较好的鲁棒性和安全性。
Most watermarking schemes in literatures are usually implemented by embedding a mark in a host media itself for intended purposes. The existing techniques for watermarking are confronted with the problems of perceptible quality degradation and the inherent conflict between imperceptibility and robustness, which introduced by the watermark embedding. In this paper, we propose a novel audio zero-watermarking scheme for content authentication. First the audio is divided to frame by fixed length and then low-frequent and high-frequent components are obtained by three-level lifting-based wavelet transformation in every frame. Secondly the audio frame is approximately represented as a product of a base matrix and a coefficient matrix using non-negative matrix factorization (NMF). Finally the sum of each column in the coefficient matrix is calculated which is quantized to produce a feature vector, and then the copyright information is obtained by calculating the watermark and feature vector. Experiment results show that the proposed scheme is robust against Mp3 compression and secure.