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VIS
2009
IEEE

Multi-Scale Surface Descriptors

14 years 11 months ago
Multi-Scale Surface Descriptors
Local shape descriptors compactly characterize regions of a surface, and have been applied to tasks in visualization, shape matching, and analysis. Classically, curvature has be used as a shape descriptor; however, this differential property characterizes only an infinitesimal neighborhood. In this paper, we provide shape descriptors for surface meshes designed to be multi-scale, that is, capable of characterizing regions of varying size. These descriptors capture statistically the shape of a neighborhood around a central point by fitting a quadratic surface. They therefore mimic differential curvature, are efficient to compute, and encode anisotropy. We show how simple variants of mesh operations can be used to compute the descriptors without resorting to expensive parameterizations, and additionally provide a statistical approximation for reduced computational cost. We show how these descriptors apply to a number of uses in visualization, analysis, and matching of surfaces, particula...
Gregory Cipriano, George N. Phillips Jr., Michae
Added 06 Nov 2009
Updated 18 Nov 2009
Type Conference
Year 2009
Where VIS
Authors Gregory Cipriano, George N. Phillips Jr., Michael Gleicher
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