Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1708539 | Applied Mathematics Letters | 2011 | 4 Pages |
Abstract
The Hausdorff distance, the Gromov–Hausdorff, the Fréchet and the natural pseudo-distance are instances of dissimilarity measures widely used in shape comparison. We show that they share the property of being defined as infρF(ρ)infρF(ρ) where FF is a suitable functional and ρρ varies in a set of correspondences containing the set of homeomorphisms. Our main result states that the set of homeomorphisms cannot be enlarged to a metric space KK, in such a way that the composition in KK (extending the composition of homeomorphisms) passes to the limit and, at the same time, KK is compact.
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Physical Sciences and Engineering
Engineering
Computational Mechanics
Authors
Patrizio Frosini, Claudia Landi,