Topological Relations under Uncertainty in GIS Spatial Data
Spatial relation theory is one of the hottest research topics in the GIS circle both at home and abroad.This research intends to analyze relevant research findings over the past more than a decade and latest academic development to point out major problems and inadequacy in existing researches,focusing on the topological relations and uncertainty in GIS to engage in a systematic investigation.This research discusses the present situation of the overall GIS field,the development of GIS,and features of the present development of GIS technology.It also investigates and analyzes relevant issues,such as the uncertainty in topological relations which is caused by the inaccuracy of,and uncertainty in,GIS spatial data,spatial reasoning,spatial searching,spatial-searching language,image segmentation,the theoretical development of topological relations,the trend of GIS development,and the problems in the development of GIS in the 21st century.The egg-yolk model is formulated.The egg is the maximum range of the fuzzy target while the yolk is the minimum range of the fuzzy target and the white is the scope of the uncertainty
Geographic Information System Spatial data Image Segmentation Topological Relations Uncertainty Inconsistency
Gao Jianxin Xia Yangling CHEN Daxiang
Wuhan University Library,129 Luoyu Roal,Wuhan,430079,Peoples R China China Communications Construction Company (CCCC) Guangzhou Dredging Corporation Ltd,362 Binjiang RD. Graduate School of Wuhan University,Wuhan 430072,Peoples R China
国际会议
第16届国际地理信息科学与技术大会(16th International Conference on GeoInformatics and the Joint Conference)
广州
英文
2008-06-28（万方平台首次上网日期，不代表论文的发表时间）