一种基于二维码的鲁棒性音频水印  

Robust Audio Watermark Based on QR Code

作　　者：刘思玮 杜庆治[1] 龙华[1] 邵玉斌[1] 彭艺[1] LIU Si-wei;DU Qing-zhi;LONG Hua;SHAO Yu-bin;PENG Yi(College of Information Engineering and Automation,Kunming University of Science and Technology,Kunming 650500,China)

机构地区：[1]昆明理工大学信息工程与自动化学院,昆明650500

出　　处：《小型微型计算机系统》2022年第7期1535-1540,共6页Journal of Chinese Computer Systems

基　　金：国家自然科学基金项目(61761025)资助.

摘　　要：基于普通图像的数字音频水印算法,鲁棒性弱以及自动化检测复杂.针对这种情况,本文在此基础上提出了一种新的盲水印嵌入算法.利用二维码(QR码)自身的纠错能力,将QR码作为待嵌入的水印图像.首先将水印图像进行分块处理,以Arnold变换为基础,通过添加密匙来提升数字音频水印的安全性.其次对原始音频信号完成分帧预处理后,首先对每帧信号应用3级离散小波变换(DWT),选取低频分量进行离散余弦变换(DCT),然后把得到的一维信号进行奇异值分解.最后通过对奇异值的量化,并利用重复码的特点,将水印信息进行嵌入.实验结果表明,本文算法对噪声、低通滤波、压缩等常见的攻击方法具有良好的鲁棒性.The digital audio watermarking algorithm based on ordinary images has weak robustness and complex automatic detection.In response to this situation,this paper proposes a new blind watermark detection algorithm on this basis.Using the error correction capability of the QR code itself,the QR code is used as the watermark image to be embedded.First,the watermark image is processed in blocks,based on the Arnold transformation,and the security of the digital audio watermark is improved by adding a key.Secondly,after the completion of the original audio signal preprocessing sub-frames,each frame signal is first applied to the 3-level discrete wavelet transform,select frequency component discrete cosine transform,and the one-dimensional signal obtained singular value decomposition.Finally,the quantization of the singular values,and using the characteristics of the repetition code,the watermark information is embedded.Experimental results show that the algorithm in this paper has good robustness against common attack methods such as noise,low-pass filtering,and compression.

关 键 词：数字音频水印 QR码 离散小波变换 离散余弦变换 重复码 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]