基于双重水印的音频篡改检测算法仿真研究  

The Simulation for audio tamper detection algorithm based on dual watermark

作　　者：周燕[1] 曾凡智[1] 刘智丰[1] 

机构地区：[1]佛山科学技术学院计算机系,广东佛山528000

出　　处：《佛山科学技术学院学报（自然科学版）》2014年第6期23-28,共6页Journal of Foshan University(Natural Science Edition)

基　　金：广东省教育厅高校优秀青年创新人才培育基金资助项目(2012LYM_0132);佛山市科技发展专项基金资且项目(2011AA100051;20121011010070);佛山科学技术学院2013年优秀青年人才培育基金资助项目

摘　　要：提出一种基于双重水印的音频篡改检测算法,利用二值图像进行降维处理作为水印信号,按照适当的分段方式,平均嵌入到音频中生成内容认证水印,利用段序号的二值数字串生成完整性水印,实现音频的版权保护和内容认证。通过提取水印并与原始水印进行比对,判断音频的完整性,并精确定位篡改区域。仿真实验表明,算法具有很好的不可感知性,且对音频篡改检测的准确性高。It proposes an audio tamper detection algorithm based on dual watermark. It uses binary image as the watermark signal by reducing the image dimension. By appropriate subparagraph, the signals are embedded into the audio averagely so to generate content authentication watermark. Using the binary digital string of section number, the integrity watermark is generated so to implement audio content authentication and copyright protection. By extracting the watermark and comparing with the original watermark, it determines the audio integrity and locates the tamper region precisely. Simulation results show that this algorithm has good imperceptibility and high accuracy to audio tamper detection.

关 键 词：二值图像 音频水印 内容认证 篡改检测 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构]