基于DWT的自适应盲音频水印算法  

Adaptive Blind Digital Audio Watermarking Algorithm Based on DWT

作　　者：刘泉[1] 高庆[1] 

机构地区：[1]武汉理工大学信息工程学院,武汉430070

出　　处：《武汉理工大学学报》2008年第1期95-97,129,共4页Journal of Wuhan University of Technology

基　　金：高等学校博士点基金(20060497005)

摘　　要：提出了一种基于离散小波变换的数字音频水印盲检测算法。对原始音频数据进行分段处理,对每个音频数据段进行DWT,自适应确定嵌入强度,将水印信号重复地嵌入到每一段音频数据小波系数的偶数点中。算法提取水印时不需要原始音频信号。仿真实验证明了算法的鲁棒性和不可感知性。This article proposed a blind digital audio watermarking algorithm based on the DWT.Firstly,the original audio signal was divided into several audio segments.Secondly,the DWT were performed on the audio segments.Finally,the watermarking was repeat embedded into the even number of wavelet coefficient of divided audio segment adaptively;the watermarking could be extracted without the original audio signal.Experimental results demonstrated the algorithm was robust and imperceptible.

关 键 词：音频水印 ARNOLD变换 重复嵌入 自适应 盲检测 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构]