收稿日期: 2009-06-15
修回日期: 2009-09-08
网络出版日期: 2010-01-15
基金资助
国家自然科学基金项目(60772032)资助
Audio steganalysis method based on wavelet packet and adaptive predictor
Received date: 2009-06-15
Revised date: 2009-09-08
Online published: 2010-01-15
王昱洁 , 郭立 , 王翠平 , 丁治国 . 基于小波包与自适应预测器的音频隐写分析方法[J]. 中国科学院大学学报, 2010 , 27(1) : 49 -54 . DOI: 10.7523/j.issn.2095-6134.2010.1.007
An audio steganalysis method based on wavelet packet and adaptive predictor is proposed. In this scheme, audio signals are firstly decomposed by the wavelet packet, the wavelet packet coefficients of high frequency are then predicted by the LMS adaptive predictor, statistics of predicted errors are selected as the statistical features, and finally SVM is implemented as a classifier. The experimental results verify that, for the commonly used steganography methods of additive noise, high classification accuracy can be achieved even in the case of low embedding strength or low embedding rate.
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