北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2004, Vol. 27 ›› Issue (3): 73-77.

• 论文 • 上一篇    下一篇

基于载体内容的水印构造方法

张立和, 戴元军, 杨义先, 胡正名   

  1. 北京邮电大学 信息安全中心, 北京 100876
  • 收稿日期:2003-03-12 出版日期:2004-03-28
  • 作者简介: 张立和(1976—), 男, 博士生, E-mail: zhanglihe@yeah.net.
    杨义先(1961—), 男, 教授, 博士生导师, E-mail:yxyang@bupt.edu.cn.
  • 基金资助:
    北京市自然科学基金项目(4042022);国家“973”项目(G1999035804);教育部优秀青年教师资助计划项目

Watermark Constructing Method Based on Host Signal

ZHANG Li-he, DAI Yuan-jun, YANG Yi-xian, HU Zheng-ming   

  1. The Information Security Center, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • Received:2003-03-12 Online:2004-03-28

摘要: 根据线性预测理论,利用预测滤波器对噪声的整形作用提出一种基于载体内容的水印构造方法。理论分析和实验结果表明,用这种方法构造出来的水印包络与载体包络是相似的,并具有较强的不感知性和鲁棒性。

关键词: 数字水印, 线性预测, 视觉模型, 听觉模型

Abstract: According to the linear prediction theory, a host signal-based watermark construction method used with the noise shaping characteristic of linear prediction filter was presented. The theoretical analysis shows that the envelope of watermark signals was similar to that of the host signals, after which it was verified by experiments. So that we get a conclusion: the work we have done on watermark has strong imperceptibility and robustness.

Key words: digital watermark, linear prediction, visual model, auditory model

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