一种变换域的音频水印算法  

A Digital Audio Watermarking Algorithm in Transform Domain

作　　者：任平[1] 李金祥[2] 姜真杰[2] 

机构地区：[1]解放军信息工程大学,河南郑州450002 [2]苏州市职业大学计算机工程系,江苏苏州215104

出　　处：《计算机与现代化》2008年第4期64-66,共3页Computer and Modernization

摘　　要：音乐制品作为多媒体产品中的重要组成,其在线传输越来越便捷。为了防止多媒体信息被侵权及非法篡改,音频内容的版权保护变得越来越重要。作为数字产品版权保护的有效方法,数字音频水印技术已经得到了广泛的重视与研究。本文提出了一种基于独立分量分析的音频数字水印方法。嵌入水印时,对原始音频文件进行一级小波分解,在分解得到的逼近分量中利用随机混合方法嵌入水印后进行小波逆变换形成嵌入水印的音频文件。仿真实验结果表明这种方法的强鲁棒性和可行性。Audio production is one of the important digital multimedias, which transmit becomes more and more convenient. To prevent the multimedia content from being stolen or illegally used, audio content protection techniques become increasingly important so that the potential of these applications can be reached. As the important method of copyright protection, the digital watermarking technology has been acquired widely recognition and research. This paper presents a method of digital audio watermarking based on independent component analysis. When embedding watermarking, the original audio is decomposed by single-level discrete 1-D wavelet transform, watermarking is embedded by mixing randomly to the approximation coefficient vector obtained, and the audio is single-level reconstructed receiving audio having watermarking. Emulated experiment results show that this method is robust and feasible.

关 键 词：音频数字水印 独立分量分析 离散小波变换 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]