摘要
从客户端的影像金字塔体系的建立、四叉树结构对影像数据瓦片的组织与调度、影像数据的分布式数据库存取、空间目录服务建立与用户数据请求与快速定位和影像数据在线分发技术等方面入手,深入分析并探讨基于网络的三维GIS的影像数据处理与分发关键技术,同时,经过建立客户端三维GIS原型系统和空间目录服务网站,验证影像数据在服务器及客户端之间传输的低时延性,从而保证网络三维GIS的交互操作与分析。
From the perspective of the establishment of image pyramid in client, the management of the image tiles with quad-tree structure, the storage of image tiles into distributed database, the construction of spatial data catalog and the client data request and fast data location the online publishment of image tiles and so on, the paper analyzes and discusses the key technology of the publication of the image data based web 3D GIS. Through building a client prototype 3D GIS and spatial catalog services website, it proves that the low time-consumed in the publication of the image data from server to clinet and enables the interoperation and analysis of the web 3D GIS.
出处
《测绘工程》
CSCD
2009年第6期44-48,共5页
Engineering of Surveying and Mapping
基金
国家863资助项目(2007BAH16B03-r3)
