Title
Eigenmodes of surface energies for shape analysis
Abstract
In this work, we study the spectra and eigenmodes of the Hessian of various discrete surface energies and discuss applications to shape analysis. In particular, we consider a physical model that describes the vibration modes and frequencies of a surface through the eigenfunctions and eigenvalues of the Hessian of a deformation energy, and we derive a closed form representation for the Hessian (at the rest state of the energy) for a general class of deformation energies. Furthermore, we design a quadratic energy, such that the eigenmodes of the Hessian of this energy are sensitive to the extrinsic curvature of the surface. Based on these spectra and eigenmodes, we derive two shape signatures. One that measures the similarity of points on a surface, and another that can be used to identify features of the surface. In addition, we discuss a spectral quadrangulation scheme for surfaces.
Year
DOI
Venue
2010
10.1007/978-3-642-13411-1_20
GMP
Keywords
Field
DocType
deformation energy,quadratic energy,spectral quadrangulation scheme,rest state,physical model,shape analysis,closed form representation,extrinsic curvature,general class,shape signature,various discrete surface energy,surface energy,resting state
Topology,Eigenfunction,Curvature,Hessian matrix,Quadratic equation,Deformation (mechanics),Normal mode,Eigenvalues and eigenvectors,Mathematics,Shape analysis (digital geometry)
Conference
Volume
ISSN
ISBN
6130
0302-9743
3-642-13410-6
Citations 
PageRank 
References 
9
0.46
20
Authors
5
Name
Order
Citations
PageRank
Klaus Hildebrandt146624.77
Christian Schulz221310.71
Christoph von Tycowicz318310.31
Konrad Polthier4108985.92
Dieter H. E. Gross5141.59