地理空间数据数字水印安全技术研究  

RESEARCH ON SECURITY TECHNIQUES OF DIGITAL WATERMARKING IN GIS SPATIAL DATA

作　　者：贾培宏[1] 聂时贵[2] 董润华[3] 陈蕴真[1] 

机构地区：[1]南京大学海岸与海岛开发教育部重点实验室,江苏南京210093 [2]江苏省基础地理信息中心,江苏南京210013 [3]南京市测绘勘察研究院有限公司,江苏南京210005

出　　处：《计算机应用与软件》2008年第8期81-82,94,共3页Computer Applications and Software

基　　金：江苏省测绘科技基金项目(200416)

摘　　要：通过在GIS空间数据中隐藏标识数据生产单位版权和用户使用权属的数字水印的数据安全技术,来跟踪、抵制GIS空间数据的非法流通、非法复制,有效保护数据生产单位的合法权益,推动GIS空间数据的安全共享。方法无论是对于地理空间数据安全管理,还是对于数字水印信息隐藏技术应用领域的扩展都属新的探索。运用所研究的技术方法已开发出相应的应用软件,并利用江苏省1∶1万数字地形图数据进行了检验测试,证明该技术方法是可行的。A set of security techniques of digital watermarking are presented, by which copyright and user rights messages are hidden into geo-spatial data. The technologies aim at tracing and resisting the illegal distribution and duplication of the geo-spatial data product, so as to effectively protect the data producer＇ s rights as well as facilitate the secure sharing of geo-spatial data. The research is a novel exploration both in the field of security management of geo-spatial data and in the applications of digital watermarking techniques. An application software employing the proposed technologies is developed. Experimental tests on the 1： 10,000 digital topographic map of Jiangsu Province are conducted to verify the feasibility of the proposed technologies.

关 键 词：地理空间数据 数字水印 版权保护 安全共享 

分 类 号：TP309[自动化与计算机技术—计算机系统结构] P208[自动化与计算机技术—计算机科学与技术]