discrete differential operator

A Simple Discrete Calculus for Digital Surfaces
Computing differential quantities or solving partial derivative equations on discrete surfaces is at the core of many geometry …
David Coeurjolly, Jacques-Olivier Lachaud
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A Simple Discrete Calculus for Digital Surfaces
Laplace--Beltrami Operator on Digital Surfaces
This article presents a novel discretization of the Laplace–Beltrami operator on digital surfaces.We adapt an existing convolution …
Thomas Caissard, David Coeurjolly, Jacques-Olivier Lachaud, Tristan Roussillon
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Laplace--Beltrami Operator on Digital Surfaces
Heat Kernel Laplace-Beltrami Operator on Digital Surfaces
Many problems in image analysis, digital processing and shape optimization can be expressed as variational problems involving the …
T. Caissard, D. Coeurjolly, Jacques-Olivier Lachaud, T. Roussillon
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Heat Kernel Laplace-Beltrami Operator on Digital Surfaces