通信学报 ›› 2016, Vol. 37 ›› Issue (2): 174-179.doi: 10.11959/j.issn.1000-436x.2016044

• 学术论文 • 上一篇    下一篇

复合的海图安全防护技术研究

徐锋1,李佳楠1,孙建国1,2   

  1. 1 哈尔滨工程大学计算机科学与技术学院,黑龙江 哈尔滨150001
    2 中国科学院信息工程研究所,北京100089
  • 出版日期:2016-02-26 发布日期:2016-02-26
  • 基金资助:
    国家自然科学基金资助项目;教育部博士点基金资助项目;黑龙江省自然科学重点基金资助项目;中央高校基础研究基金资助项目

Research of composite safety protection for digital maps

Feng XU1,Jia-nan LI1,Jian-guo SUN1,2   

  1. 1 Department of Computer Science and Technology,Harbin Engineering University, Harbin 150001, China
    2 Institute of Information Engineering, Chinese Academy of Sciences, Beijing 100089, China
  • Online:2016-02-26 Published:2016-02-26
  • Supported by:
    The National Natural Science Foundation of China;The Research Fund for the Doctoral Program of Higher Education of China;The Fundamental Research Fund for the Central Universities;The Natural Science Foundation of Heilongjiang Province

摘要:

提出了一种二维电子海图自适应水印技术,利用平移不变策略,获得海图空间内频域较稳定的一个水印嵌入载体集合。为了防止水印嵌入幅度过大而影响海图使用和从水印算法的安全性考虑,提出了灰度平衡控制方案,计算每个划分好的矩形区域内可嵌入水印的最大容量。实验表明,该方法能够适应海图常规操作所带来的数据扰动,具有较好的顽健性。

关键词: 信息隐藏, 数字水印, 电子海图, 自适应性

Abstract:

An adaptive watermarking technology for 2D electronic charts was proposed. It took count in the discrete wavelet domain scheme, and obtained an ideal embedding set for watermarks in the electronic chart space. In order to preserve topology of map effectly by the large embedding rates and protect the safety of watermarking scenario, a gray balance means was provided, and the maximum capacity in each divided rectangle blocks in the electronic charts was computed.The experiment also shows that it can adapt to data perturbation by conventional operations.The method has better robustness.

Key words: information hiding, digital watermarking, electronic chart, automatic adaptive

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