Abstract: There are two problems in spatial relationships calculation: the latitude and longitude coordinate lacks of area attribute and the directly spatial relationships calculation on remote sensing images is complex. To these problems, the EMD (the extended model based on mapping division) subdivision cell is used as the basic unit in calculation, instead of the latitude and longitude coordinate. The spatial relationships calculation architecture based on EMD subdivision is also proposed. The experiment about the architecture confirms the feasibility of this new calculation model.

Key words: spatial relationships, calculation architecture, topology calculation, metric relationship calculation, direction calculation, EMD global subdivision

摘要： 针对在空间关系计算中存在的经纬度坐标缺少区域信息的问题, 以及基于影像直接进行空间关系计算中存在的计算复杂的问题, 利用具有点面二相性的基于地图分幅的扩展模型(EMD)全球剖分面片作为空间关系计算的基本单位, 采用EMD全球剖分面片编码代替经纬度坐标进行空间关系计算, 提出EMD剖分空间关系计算模型的体系架构, 并在此基础上进行验证实验, 证实了该模型的可行性。

关键词: 空间关系计算, 体系架构, 拓扑关系计算, 度量关系计算, 方向关系计算, EMD全球剖分