A Novel Algorithm for Robust Audio Watermarking in Wavelet Domain

被引：0
|
作者：
傅瑜
王宝宝
机构：
[1] Zhongshan College
[2] UESTC Guangdong Zhongshan 528403 China
[3] Institute of Network & Computation
[4] Xidian University Xi’an 710071 China
来源：
Journal of Electronic Science and Technology | 2004年 / 02期
关键词：
discrete wavelet transform; intermediate frequencies; digital audio watermark;
D O I：
暂无
中图分类号：
TP309 [安全保密];
学科分类号：
081201 ; 0839 ; 1402 ;
摘要：
A novel algorithm for digital audio watermarking in wavelet domain is proposed. First, an original audio signal is decomposed by discrete wavelet transform at three levels. Then, a discrete watermark is embedded into the coefficients of its intermediate frequencies. Finally, the watermarked audio signal is obtained by wavelet reconstruction. The proposed algorithm makes good use of the multiresolution characteristics of wavelet transform. The original audio signal is not needed when detecting the watermark correlatively. Simulation results show that the algorithm is inaudible and robust to noise, filtering and resampling.
引用
收藏
页码：70 / 72 +78
页数：4
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