基于混沌置乱的DWT域语音水印算法的研究  

Researches and Implementation of DWT Domain Audio Watermarking Algorithms Based on Chaos-scrambling

作　　者：陈昕[1] 郝川艳[1] 

机构地区：[1]福建师范大学协和学院,福建福州350007

出　　处：《三明学院学报》2011年第5期37-41,共5页Journal of Sanming University

摘　　要：作为信息隐藏技术中的数字水印技术是信息时代的一个热门研究课题。语音水印技术由于受到人的听觉特性的限制,使得传统数字水印技术在实现上有一定难度。研究并实现了一种基于混沌置乱技术引入传统的DWT域语音水印算法,该算法可以实现向宿主语音信号嵌入具有特定意义的数字水印,且由于引入了混沌置乱技术极大地提高了水印的安全性和鲁棒性,并同时具有易于提取和高透明性的特点。Digital watermarking technology,as a branch of information hidden technology,is one of the hottest topics in the information age.The implementation of digital audio watermarking technology is more difficult because of the sensitivity of human auditory system（HAS）.This paper focuses on a DWT domain digital audio watermarking algorithm based on chaos-scrambling,which implements the process of embedding specific digital watermarks into the original audio sequences in robust and perceptually transparent manner.It shows that the security and robustness of watermark improved by using Logistic-map Encryption with the features of easy extracting and high transparency.

关 键 词：小波变换 数字水印 语音水印 置乱技术 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]