计算机工程与应用 ›› 2010, Vol. 46 ›› Issue (23): 148-150.DOI: 10.3778/j.issn.1002-8331.2010.23.042

• 数据库、信号与信息处理 • 上一篇    下一篇

基于整数小波变换的自适应数字音频信息隐藏

郑 玉,刘文杰,赵英男   

  1. 南京信息工程大学 计算机与软件学院,南京 210044
  • 收稿日期:2009-01-19 修回日期:2009-03-02 出版日期:2010-08-11 发布日期:2010-08-11
  • 通讯作者: 郑 玉

Adaptive digital audio information hiding based on integer wavelet transform technique

ZHENG Yu,LIU Wen-jie,ZHAO Ying-nan   

  1. School of Computer and Software,Nanjing University of Information Science and Technology,Nanjing 210044,China
  • Received:2009-01-19 Revised:2009-03-02 Online:2010-08-11 Published:2010-08-11
  • Contact: ZHENG Yu

摘要: 提出了一种新型数字音频信息加密算法。通过整数小波变换,将加密数据嵌入到载体音频的小波子带系数中,在整数域估算听觉阈值,并将之作为嵌入信息的门限值,最后采用整数小波变换的逆变换来修正小波系数从而形成一个新的音频序列信号。该算法具有较大的有效载荷,较好的音频质量,可以实现音频信息的完全重构。通过对6种格式的音频信号进行测试,证明了提出的方法是有效的。

关键词: 数字音频加密, 自适应数据嵌入, 整数小波变换, 听觉阈值, 最低比特位

Abstract: A novel data hiding method for digital audio using integer wavelet transform and the hearing threshold embedding technique is proposed.Data are embedded into the Least Significant Bit-plane(LSB) of integer wavelet coefficients,which accords with the principle of Human Auditory System(HAS).The inverse integer wavelet transform is utilized to modified coefficients to form a new audio sequence(stegosignal).Experimental results show that this method is large payload,high audio quality and full recovery.The method is successfully applied in the six types of digital audios.

Key words: audio steganography, adaptive data embedding, integer wavelet transform, auditory threshold, Least Significant Bit-plane(LSB)

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