1) vector topographic data
矢量地形数据
1.
With the development of cities and the desire of foundational geographic information from various departments, each city carried out the surveying and mapping of the vector topographic data, and many cities have begun researching and constructing of the urban foundational geographic information system.
随着城市的不断发展和城市各部门对基础地理信息的需要，各个城市都进行了矢量地形数据的测绘工作，并且不少城市也开始了城市基础地理信息系统的研究和建设。
2) vector topographic map(DLG)
矢量地形数据(DLG)
3) vector map data
矢量地图数据
1.
Based on the characteristics of vector map data,in this paper,an anti-compression watermarking algorithm for vector map data was proposed.
基于矢量地图数据特点,提出了一种抗数据压缩的矢量地图数据数字水印算法,即在嵌入水印信息之前对数据进行道格拉斯-普克法压缩,然后在特征点中嵌入水印信息。
2.
Concerning the characteristics of vector map data,the paper presents an encryption algorithm based on chaotic sequence.
加密技术是保障数据安全的最主要的手段,结合矢量地图数据的特点,设计了一种基于混沌序列的数据加密算法。
3.
Aimed at some kinds of restriction which make the storage and transportation of vector map data in the fact of the data and the bandwidth, the lossless compression algorithm of vector map data are studied in this dissertation.
本文主要针对当前数据量和网络带宽两方面对矢量地图数据的存储和传输带来的种种限制,研究了矢量地图数据的无损压缩算法。
4) Vectorial terrain data
地貌矢量数据
5) vector geo-data
矢量地理数据
1.
Analysis of spatial domain arithmetic and attacking methods for vector geo-data watermarking
空域矢量地理数据水印算法及攻击方法分析
6) vector data
矢量数据
1.
Spatial matching error analysis of vector data for landuse change surveying based on RS;
基于RS的土地利用更新调查矢量数据空间匹配误差研究
2.
Study of vector data symbolization method based on vector-raster technique;
基于矢量栅格技术的矢量数据符号化方法研究
3.
Overlay analysis on forest resource vector data for Maoershan Experimental Forest Farm,northeastern China.;
帽儿山实验林场森林资源矢量数据的叠置分析
补充资料：研究人员处理来自卫星图像的地形数据库资料
研究人员处理来自卫星图像的地形数据库资料
研究人员处理来自卫星图像的地 形数据库的资料
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条