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Parts of Visual Form: Computational Aspects (1995)
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| Venue: | IEEE Transactions on Pattern Analysis and Machine Intelligence |
| Citations: | 92 - 7 self |
BibTeX
@ARTICLE{Siddiqi95partsof,
author = {Kaleem Siddiqi and Student Member and Benjamin B. Kimia},
title = {Parts of Visual Form: Computational Aspects},
journal = {IEEE Transactions on Pattern Analysis and Machine Intelligence},
year = {1995},
volume = {17},
pages = {239--251}
}
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Abstract
Underlying recognition is an organization of objects and their parts into classes and hierarchies. A representation of parts for recognition requires that they be invariant to rigid transformations, robust in the presence of occlusions, stable with changes in viewing geometry, and be arranged in a hierarchy. These constraints are captured in a general framework using notions of a part-line and a partitioning scheme. A proposed general principle of "form from function" motivates a particular partitioning scheme involving two types of parts, neck-based and limb-based, whose psychophysical relevance was demonstrated in [39]. Neckbased parts arise from narrowings in shape, or the local minima in distance between two points on the boundary, while limb-based parts arise from a pair of negative curvature minima which have "co-circular" tangents. In this paper, we present computational support for the limb-based and neck-based parts by showing that they are invariant, robust, stable and yield...
