Qualitative spatial relationships representation IOT and its retrieval

摘要

We present in this paper,a qualitatie spatial relationships reprsentation scheme called IO&T which combineds fuzzy Intrinsic Orinentation and Topological spatial relationships,and a similaritymneasure based on this representation.This scheme is invariant undr translation and rotation.In addition,the proposed picture similarity rerieval approach,which is based on dominant objects is especially useful for similarity retrieval involving a smal number of dominant objects.