音频信息隐藏技术研究  

The Research on Audio Information Hiding Technolgy

作　　者：袁开国[1] 杨榆[1] 杨义先[1] 

机构地区：[1]北京邮电大学网络与交换技术国家重点实验室,北京100876

出　　处：《中兴通讯技术》2007年第5期6-9,共4页ZTE Technology Journal

基　　金：国家重点基础研究发展规划项目(973计划)(No.2007CB311203);国家自然科学基金资助项目(No.90604022)

摘　　要：音频信息隐藏技术作为信息隐藏技术的一个重要分支,主要涉及的域有时域、频域、离散余弦变换(DCT)域、小波(Wavelet)域、压缩域等。其中,时域和频域的嵌入方法相对容易实现,但鲁棒性相对较差;DCT域和Wavelet域方法透明性好,鲁棒性也不错,尤其是在抵抗模/数转换(A/D)、数/模转换(D/A)攻击时有着非常优秀的表现,但其操作复杂,实现难度相对较高;压缩域隐藏算法一般有较好的透明性,但鲁棒性相对较差。音频信息隐藏在许多场合取得了很好的应用效果,但面对重录音攻击,尚且没有一种很好的方法。解决这一难题的关键是精确同步信息的嵌入和强鲁棒隐藏方法的研究。Audio information hiding technology is an important branch of steganography which is related to the domains such as time, frequency, Discrete Cosine Transform （DCT）, Wavelet and compressed. Among them, the algorithms in time and frequency domains are simple, but the robustness of them is weak. The technologies in DCT and Wavelet domains own good invisibility and robustness. When attacked by A/D, D/A convert, their performances are specially excellent. However, their complexity is so high, making them difficult to implement. Although the methods in compressed domain have good invisibility, they are, however, vulnerable. Audio information hiding is well-applied in many occasions. However, when in the face of re-record attack, there is no satisfactory resolution. The research shows that precise synchronization information imbedding and strong hiding methods are the two key points to solve this problem.

关 键 词：音频信息隐藏 人耳听觉系统 听觉阈值 听觉掩蔽效应 相位不敏感 

分 类 号：TN918.6[电子电信—通信与信息系统]