Handling Spatio-Temporal Uncertainties of Geo-Objects for Dynamic Update of GIS Databases from Multi-Source Data COMMISSION III, ICWG hilly

Institute of Industrial Science, The University of TokyoABSTRACT:As more GIS's are used in many institutions and fields, the importance of keeping GIS database current iskeenly recognized. To fulfill the requirement, a concept of dynamic update of GIS databases using a widevariety of data from multi-sources is proposed and a methodological framework is proposed to realize it. Atfirst, a model to represent geo-objects with spatio-temporal uncertainties is proposed. The model can serveas a basis to handle geo-objects with different levels of spatio-temporal uncertainties especially in integratingdata from multi-sources. Secondly, a method is proposed to estimate or reconstruct status of relatively static