一种基于离散小波变换的抗重录音鲁棒音频水印算法OACSTPCD
A Discrete Wavelet Transform-based Anti-replay Audio Watermarking Algorithm
为了解决音频内容被重录音后非法传播和使用的问题,提出了一种抗重录音攻击的鲁棒音频水印算法.在对音频信号进行离散小波变换基础上,定义了数字音频特征 DWT-CLM(Discrete Wavelet Transform-Coefficient Logarithmic Mean),分析得出了该特征和音频信号DWT近似分量之间的关系,在此基础上提出了基于音频信号DWT-CLM特征的水印嵌入方法.实验分析结果表明,本算法具有较好的不可听性、抗信号处理的能力,尤其在对信号处理满足一定鲁棒性的同时,有一定的容忍重录音攻击的能力.
In order to solve the problem of illegal transmission and use of audio content after rerecording,a robust audio watermarking algorithm was proposed.Based on discrete wavelet transform,Discrete Wavelet Transform-Coefficient Logarithmic Mean(DWT-CLM)was defined,the relationship between DWT-CLM and the approximate components of DWT was analyzed,and a watermark embedding method was proposed based on DWT-CLM.Experimental results showed that the proposed algorithm had the good inaudibility and anti-signal processing ability,especially in the signal processing to meet a certain robustness,and a certain tolerance for re-recording attacks.
李艳丽;祁传达
信阳师范大学 计算机与信息技术学院,河南 信阳 464000信阳师范大学 计算机与信息技术学院,河南 信阳 464000
计算机与自动化
离散小波变换数字水印版权保护特征提取重录音攻击
discrete wavelet transform(DWT)digital watermarkcopyright protectionfeature extractionre-recording attack
《信阳师范学院学报（自然科学版）》 2024 (4)
449-453,5
国家自然科学基金项目(61902085)河南省本科高校教学改革研究与实践项目(2022SYJXLX061)
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