SURFACE SUBDIVISION FOR GENERATING SUPERQUADRICS

Citation
Me. Montiel et al., SURFACE SUBDIVISION FOR GENERATING SUPERQUADRICS, The visual computer, 14(1), 1998, pp. 1-17
Citations number
29
Categorie Soggetti
Computer Science Software Graphycs Programming","Computer Science Software Graphycs Programming
Journal title
ISSN journal
01782789
Volume
14
Issue
1
Year of publication
1998
Pages
1 - 17
Database
ISI
SICI code
0178-2789(1998)14:1<1:SSFGS>2.0.ZU;2-K
Abstract
Superquadrics have been considered as important models for part-level description in computer graphics and computer vision. The description power of these models resides in their parameterised nature, which all ows the definition of a wide variety of shapes, yet maintains a compac t characterisation. We present a subdivision technique for modelling a nd displaying superquadrics. The method defines the surface of a super quadric as a deformation of an ellipsoid. The linear are-length parame terisation obtained provides a regular distribution of the parameters along the surface. Furthermore, the definition simplifies computations in scanning by avoiding the evaluation of rational exponents. We expl oit the geometric properties of an ellipsoid during subdivision for ad ditional simplification.