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GMP
2010
IEEE

Eigenmodes of Surface Energies for Shape Analysis

9 years 6 months ago
Eigenmodes of Surface Energies for Shape Analysis
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.
Klaus Hildebrandt, Christian Schulz, Christoph von
Added 10 Jul 2010
Updated 10 Jul 2010
Type Conference
Year 2010
Where GMP
Authors Klaus Hildebrandt, Christian Schulz, Christoph von Tycowicz, Konrad Polthier
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