矢量地图数字水印技术的研究现状和展望

数字水印技术正成为网络环境下矢量数字地图的版权保护和侵权检测研究的热点。本文总结了目前国内外针对矢量数字地图数字水印技术所做的相关工作,分析了矢量数字地图数据在表示及使用方式上的特点、矢量数字地图数据嵌入数字水印的要求以及矢量数字地图数据信息冗余的类型;按空域、变换域及参数变换分类方法,概括了目前典型的针对矢量数字地图数据的数字水印算法,讨论了其优缺点。指出了对矢量数字地图数字水印技术还存在的问题以及对该领域未来可能的研究方向和研究重点进行了展望。

A Survey of the Research on Digital Watermarking for the Vector Digital Map

Digital watermarking technique is becoming one of the hot research fields of copyright protecting, pirate detection for the vector digital map under the network environment. This paper reviews the related works on watermarking techniques for the vector digital map, analyzes the features of the vector digital map on the data expression and use, discusses the requirements of watermarking and types of the information redundancy of the vector digital map data, generalizes the typical watermarking algorithms for vector digital map and their merits and drawbacks in space domain, transform domain and parametric domain respectively, points out the remaining problems of the vector digital map watermarking techniques and proposes some research directions and key issues in the field in future.