A Hierarchical Representation of QualitativeShape based on Connection
نویسنده
چکیده
In this paper we consider the problem of representing the shape of a region, qualitatively, within a logical theory of space. Using just two primitive notions, that of two regions connecting, and the convex hull of a region, a wide variety of concave shapes can be distinguished. Moreover, by applying the technique recursively to the inside of a region (i.e. that part of the convex hull not occupied by the region itself), a hierarchical representation at varying levels of granularity can be obtained.
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