信息隐藏技术中的数字水印研究

随着计算机、网络和通信技术的飞速发展,特别是Internet的普及,信息的安全保护问题日益突出。信息隐藏学作为隐蔽通信和知识产权保护等的有效手段,正得到广泛的研究与应用。该文以信息隐藏技术在多媒体数据版权保护领域的应用———数字水印技术为重点,对相关的研究进展情况做了较系统的论述。首先介绍了信息隐藏技术的一般概念和基本原理,然后重点分析了信息隐藏技术中的数字水印的通用模型、基本特征、典型算法及其攻击方法,在此基础上介绍了数字水印在不同领域中的应用。最后对数字水印技术的发展方向及其应用前景做了预测和展望。

A Survey of Digital Watermarking Applied for Information Hiding Techniques

With the rapid development of computer,network and communication,especially the popularization of the In-ternet,information security and protection have been a key and attractive problem.As an effective method for covert communication and copyright protection,information hiding has been widely studied and applied.This paper represents a survey of information hiding techniques,which is emphasis on digital watermarking applied for multimedia data protec-tion.First,general concepts and fundamental principles of information hiding are explained.Second,generic model,basic characteristic,typical algorithm and attack analysis are discussed in detail with various example applications.Based on summary of the development and state_of_art of the technology,the application foregrounds and the research directions are discussed and forecasted.