A Qualitative Model for Visibility Relations

Authors:
Francesco Tarquini;Giorgio Felice;Paolo Fogliaroni;Eliseo Clementini
Affiliations:
University of L'Aquila Department of Electrical and Information Engineering, 67040 Poggio di Roio, L'Aquila, Italy;University of L'Aquila Department of Electrical and Information Engineering, 67040 Poggio di Roio, L'Aquila, Italy;University of L'Aquila Department of Electrical and Information Engineering, 67040 Poggio di Roio, L'Aquila, Italy;University of L'Aquila Department of Electrical and Information Engineering, 67040 Poggio di Roio, L'Aquila, Italy
Venue:
KI '07 Proceedings of the 30th annual German conference on Advances in Artificial Intelligence
Year:
2007

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Abstract

The visibility concept is related to many application fields such as robot navigation, computer graphics and telecommunication systems. In this paper we propose a new qualitative model for visibility relations based on properties of the projective space. Within the model we present a set of seven ternary relations among convex regions. Our model is capable to determine the visibility relation between a primary object A with the respect to a "region of view" C and an obstacle B. We developed the reasoning system, which allows the prediction of ternary relations between specific regions.