Variational Methods in Shape Analysis

Martin Rumpf () and Benedikt Wirth ()
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Martin Rumpf: Bonn University, Institute for Numerical Simulation
Benedikt Wirth: Bonn University, Institute for Numerical Simulation

A chapter in Handbook of Mathematical Methods in Imaging, 2015, pp 1819-1858 from Springer

Abstract: Abstract The concept of a shape space is linked both to concepts from geometry and from physics. On one hand, a path-based viscous flow approach leads to Riemannian distances between shapes, where shapes are boundaries of objects that mainly behave like fluids. On the other hand, a state-based elasticity approach induces a (by construction) non-Riemannian dissimilarity measure between shapes, which is given by the stored elastic energy of deformations matching the corresponding objects. The two approaches are both based on variational principles. They are analyzed with regard to different applications, and a detailed comparison is given.

Keywords: Shape Space; Dissimilarity Measure; Discrete Geodesic; Gromov Hausdorff Distance; Phase Field Function (search for similar items in EconPapers)
Date: 2015
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DOI: 10.1007/978-1-4939-0790-8_56

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