Extraction of qualitative information from the weighted walkthroughs

Authors:
Serafino Cicerone;Eliseo Clementini
Affiliations:
Università degli Studi dell'Aquila, L'Aquila, Italy;Università degli Studi dell'Aquila, L'Aquila, Italy
Venue:
Proceedings of the 10th ACM international symposium on Advances in geographic information systems
Year:
2002

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Abstract

Weighted walkthroughs are a quantitative model for representing the spatial relation between two raster features in image databases. In this paper, we establish a correspondence between the weighted walkthroughs and qualitative models for spatial reasoning. We provide rules for extracting topological relations from the quantitative data that are computed for each pair of pixel sets. The approach has been tested through experiments with raster regions.