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：2002
卷号：XXXIV Part 4
出版社：Copernicus Publications
摘要：There is inevitably error or uncertainty in spatial data, which are used to represent reality world, it will causes a suspicion for correctness of topological relations obtained b y reasoning from observation data. In this paper, we firstly describe the geometric and statistical properties of areal object, and analyzing the effects of positional uncertainty on representation of topological relations between areal objects. Then, the concept of uncertain topological relations is defined, and the function of probability comp utation of a point falling inside an areal object is given. Finally, a new approach to determining rand om topological relations is presented
关键词：topological relations; random object; positional error
