期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2008
卷号：XXXVII Part B2
页码：503-508
出版社：Copernicus Publications
摘要：Extracting the latent geo-information and provide decision support for the users is very important function in GIS(Geographic Information System). GIS is different from other mapping system (MS) in that topographical analysis is the main function of GIS. The common topographical analyses include slope analysis, visibility analysis, overlay analysis, buffer operation and overlay analysis. These analyses have played important roles in GIS by extracting the latent geo-information and helping the user to understanding the terrain. The vitality in GIS is that GIS can provide decision support for human being in planning their activity. Generally speaking, the activity of human being is often engaged in a certain region, so region selection is the support to boost the function and application of GIS. From above-mentioned thoughts, the authors investigate the suitable region selection analysis based on multi-restrictions and designs the algorithms to realize the region suitability selection. Under the algorithm, the experiment test is taken and has good effect in region selection
关键词：Decision Support Systems; Topological Analysis; Image Understanding; Spatial Analysis; Geography; DEM
