中国地理科学(英文版) ›› 2006, Vol. 16 ›› Issue (3): 276-281.

• 论文 • 上一篇    下一篇

Digital Watermark-based Security Technology for Geo-spatial Graphics Data

JIA Peihong1,2, CHEN Yunzhen1, MA Jinsong1, ZHU Dakui1   

  1. 1. The Key Laboratory of Coast & Inland Development of Ministry of Education, Nanjing University, Nanjing 210093, China;
    2. Jiangsu Provincial Survey Bureau, Nanjing 210013, China
  • 收稿日期:2006-05-08 修回日期:2006-08-15 出版日期:2006-09-20 发布日期:2011-12-15
  • 作者简介:JIA Peihong(1972- ),female,a native of Zhongwei of Ningxia Hui Autonomous Region,engineer,Ph.D.candidate,specialized in marine GIS theory and application.E-mail:jiapeihong@yahoo.com.cn.
  • 基金资助:

    Under the auspices of Jiangsu Provincial Science and Technology Fundation of Surveying and Mapping(No.200416)

Digital Watermark-based Security Technology for Geo-spatial Graphics Data

JIA Peihong1,2, CHEN Yunzhen1, MA Jinsong1, ZHU Dakui1   

  1. 1. The Key Laboratory of Coast & Inland Development of Ministry of Education, Nanjing University, Nanjing 210093, China;
    2. Jiangsu Provincial Survey Bureau, Nanjing 210013, China
  • Received:2006-05-08 Revised:2006-08-15 Online:2006-09-20 Published:2011-12-15

摘要:

The paper presents a set of techniques of digital watermarking by which copyright and user rights messages are hidden into geo-spatial graphics data, as well as techniques of compressing and encrypting the watermarked geo-spatial graphics data. The technology aims at tracing and resisting the illegal distribution and duplication of the geo-spatial graphics data product, so as to effectively protect the data producer's rights as well as to facilitate the secure sharing of geo-spatial graphics data. So far in the GIS field throughout the world, few researches have been made on digital watermarking. The research is a novel exploration both in the field of security management of geo-spatial graphics data and in the applications of digital watermarking technique. An application software employing the pro- posed technology has been developed. A number of experimental tests on the 1:500,000 digital bathymetric chart of the South China Sea and 1:10,000 digital topographic map of Jiangsu Province have been conducted to verify the feasibility of the proposed technology.

关键词: geo-spatial graphics data, copyright protection, digital watermarking, stego carrier, data encrypting

Abstract:

The paper presents a set of techniques of digital watermarking by which copyright and user rights messages are hidden into geo-spatial graphics data, as well as techniques of compressing and encrypting the watermarked geo-spatial graphics data. The technology aims at tracing and resisting the illegal distribution and duplication of the geo-spatial graphics data product, so as to effectively protect the data producer's rights as well as to facilitate the secure sharing of geo-spatial graphics data. So far in the GIS field throughout the world, few researches have been made on digital watermarking. The research is a novel exploration both in the field of security management of geo-spatial graphics data and in the applications of digital watermarking technique. An application software employing the pro- posed technology has been developed. A number of experimental tests on the 1:500,000 digital bathymetric chart of the South China Sea and 1:10,000 digital topographic map of Jiangsu Province have been conducted to verify the feasibility of the proposed technology.

Key words: geo-spatial graphics data, copyright protection, digital watermarking, stego carrier, data encrypting