Steganalysis for MP3 based on modified Markov and joint density features

Computer Engineering and Applications ›› 2012, Vol. 48 ›› Issue (10): 115-119.

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Steganalysis for MP3 based on modified Markov and joint density features

WU Fubao, XIE Chunhui, MEI Ke

Lab of Computer Vision, Department of Electronic Science & Technology, University of Science & Technology of China, Hefei 230027, China

Online:2012-04-01 Published:2012-04-11

改进的Markov和联合密度特征的MP3隐写分析方法

吴福宝，谢春辉，梅珂

中国科学技术大学电子科学与技术系计算机视觉实验室，合肥 230027

Abstract

Abstract: A steganalysis method in MP3 based on MDCT features is proposed. The original Markov and joint density features are expanded to the inter-frame and intra-frame of MDCT coefficients. By selecting the effective features by ANOVA, Support Vector Machine（SVM） is used to distinguish between cover MP3 and stego-MP3. Experimental results show the reasonable improvement of detection performance of MP3Stego and successful detection of the existence of the secret data in MP3 audio for MDCT modification.

Key words: MP3, Modified Discrete Cosine Transform（MDCT） coefficients, Markov, joint density, information hiding, steganalysis

摘要： 提出了一种 MDCT（修正的离散余弦变换）域的MP3隐写分析方法。该方法通过改进的Markov特征集和联合密度特征集提取出MDCT系数的特征，经过方差分析选择有效的特征用于支持向量机（SVM）的训练与检测。实验结果表明，与以往方法相比提高了对MP3Stego的检测率，能有效地检测常见的MDCT系数修改的MP3信息隐藏方法。

关键词: MP3, 修正的离散余弦变换（MDCT）系数, Markov, 联合密度, 信息隐藏, 隐写分析

WU Fubao, XIE Chunhui, MEI Ke. Steganalysis for MP3 based on modified Markov and joint density features[J]. Computer Engineering and Applications, 2012, 48(10): 115-119.

吴福宝，谢春辉，梅珂. 改进的Markov和联合密度特征的MP3隐写分析方法[J]. 计算机工程与应用, 2012, 48(10): 115-119.

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Steganalysis for MP3 based on modified Markov and joint density features

改进的Markov和联合密度特征的MP3隐写分析方法

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