基于离散余弦变换语音水印算法的研究和实现  

The Research and Implementation of Audio Watermarking Based on Discrete Cosine Transform

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350108

出　　处：《福建师范大学学报（自然科学版）》2011年第5期40-42,48,共4页Journal of Fujian Normal University：Natural Science Edition

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.提出并实现了一种基于均值量化的DCT域语音水印算法,将置乱技术、均值量化技术引入传统的DCT域语音水印算法中,有效提高了语音水印系统的透明性、安全性及鲁棒性.Digital watermarking technology, as a branch of informaiton hiding, is one of the hottest research topics in the information age. The implementation of digital audio watermarking is more difficult than traditional methods because of the sensitivity of human auditory system （HAS）. It dicusses the research and implementation on a DCT domain digital audio watermarking algorithm based on quantization, in which the author introduced logistic-map encryption technique and quantization method to the traditional DCT domain digital audio watermarking algorithm to effectively improve the transparency, security, and robustness of watermarks.

关 键 词：离散余弦变换 数字水印 语音水印 均值量化 置乱技术 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]