Journal of Computer Applications ›› 2020, Vol. 40 ›› Issue (2): 375-380.DOI: 10.11772/j.issn.1001-9081.2019081400

• DPCS 2019 • Previous Articles     Next Articles

Detection method for echo hiding based on convolutional neural network framework

Jie WANG, Rangding WANG(), Diqun YAN, Yuzhen LIN   

  1. Faculty of Electical Engineering and Computer Science,Ningbo University,Ningbo Zhejiang 315211,China
  • Received:2019-07-31 Revised:2019-08-28 Accepted:2019-09-19 Online:2019-10-14 Published:2020-02-10
  • Contact: Rangding WANG
  • About author:WANG Jie, born in 1996, M. S. candidate. His research interests include multimedia communication, information security.
    YAN Diqun, born in 1979, Ph. D., associate professor. His research interests include multimedia communication, information security.
    LIN Yuzhen, born in 1994, M. S. candidate. His research interests include multimedia communication, information security.
  • Supported by:
    the National Natural Science Foundation of China(U1736215);the Natural Science Foundation of Zhejiang Province(LZ15F020002);the Natural Science Foundation of Ningbo(2017A610123);the Subject Foundation of Ningbo University(XKXL1509);the Open Foundation of the Mobile Network Application Technology Key Laboratory of Zhejiang Province(F2018001)

基于卷积神经网络框架的回声隐藏检测方法

王杰, 王让定(), 严迪群, 林昱臻   

  1. 宁波大学 信息科学与工程学院,浙江 宁波 315211
  • 通讯作者: 王让定
  • 作者简介:王杰(1996—),男,浙江嘉兴人,硕士研究生,主要研究方向:多媒体通信、信息安全
    严迪群(1979—),男,浙江余姚人,副教授,博士,CCF会员,主要研究方向:多媒体通信、信息安全
    林昱臻(1994—),男,浙江宁波人,硕士研究生,主要研究方向:多媒体通信、信息安全。
  • 基金资助:
    国家自然科学基金资助项目(U1736215);浙江省自然科学基金资助项目(LZ15F020002);宁波市自然科学基金资助项目(2017A610123);宁波大学学科基金资助项目(XKXL1509);浙江省移动网应用技术重点实验室开放基金资助项目(F2018001)

Abstract:

Echo hiding is a steganographic technique with audio as carrier. Currently, the steganalysis methods for echo hiding mainly use the cepstral coefficients as handcrafted-features to realize classification. However, when the echo amplitude is low, the detection performance of these traditional methods is not high. Aiming at the low echo amplitude condition, a steganalysis method for echo hiding based on Convolutional Neural Network (CNN) was proposed. Firstly, Short-Time Fourier Transform (STFT) was used to extract the amplitude spectrum coefficient matrix as the shallow feature. Secondly, the deep feature was extracted by the designed CNN framework from the shallow feature. The network framework consisted of four convolutional blocks and three fully connected layers. Finally, the classification results were output by Softmax. The proposed method was steganographically evaluated on three classic echo hiding algorithms. Experimental results indicate that the detection rates of the proposed method under low echo amplitude are 98.62%, 98.53% and 93.20% respectively. Compared with the existing traditional handcrafted-features based methods and deep learning based methods, the proposed method has the detection performance improved by more than 10%.

Key words: echo hiding, steganalysis, Convolutional Neural Network (CNN), Short-Time Fourier Transform (STFT), deep learning

摘要:

回声隐藏是一种以音频为载体的隐写技术,目前针对回声隐藏的隐写分析方法主要以倒谱系数作为手工特征进行分类。然而,这些传统方法普遍在回声幅度较低时检测性能不高。针对回声幅度较低的情况,提出一种基于卷积神经网络(CNN)的回声隐藏隐写分析方法。首先利用短时傅里叶变换(STFT)提取音频的幅度谱系数矩阵作为浅层特征,然后设计了一个卷积神经网络框架对浅层特征进行进一步的深度特征提取,网络框架中包含了四个卷积模块以及三层全连接层,最后分类结果以Softmax进行输出。在三种经典的回声隐藏算法上对提出的方法进行了隐写分析实验评估,实验结果表明,该方法在低回声幅度条件下的检测率分别为98.62%、98.53%和93.20%,与目前所提出的传统基于手工特征的方法和基于深度学习的方法相比,检测性能提升10%以上。

关键词: 回声隐藏, 隐写分析, 卷积神经网络, 短时傅里叶变换, 深度学习

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