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Abstract. Spatial relationships are important ingredients for expressing constraints in retrieval systems for spatial databases. In this paper we propose a uni ed representation of spatial relationships, 2D Projection Interval Relationships (2D-PIR), that integrates both directional and topological relationships. We propose a graph representation for pictures that is based on 2D-PIR. This graph representation can be constructed e ciently and leads to an e cient algorithm for \picture matching".

ABSTRACT:In this paper we present an on-going work to reconstruct a 3D model of M.I.D.A.N.05., an ancient Egyptian tomb located in Luxor. The reconstruction aims at producing a high quality 3D model of the tomb to help in archaeological investigation and other scientific uses. We present details about the different stages of the used reconstruction pipeline, the results so far, and the evaluation of the results in view of the project objectives.

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