Diffusionnet: Discretization agnostic learning on surfaces

N Sharp, S Attaiki, K Crane, M Ovsjanikov - ACM Transactions on …, 2022 - dl.acm.org
We introduce a new general-purpose approach to deep learning on three-dimensional
surfaces based on the insight that a simple diffusion layer is highly effective for spatial …

Neural scene flow prior

X Li, J Kaesemodel Pontes… - Advances in Neural …, 2021 - proceedings.neurips.cc
Before the deep learning revolution, many perception algorithms were based on runtime
optimization in conjunction with a strong prior/regularization penalty. A prime example of this …

Shape google: Geometric words and expressions for invariant shape retrieval

AM Bronstein, MM Bronstein, LJ Guibas… - ACM Transactions on …, 2011 - dl.acm.org
The computer vision and pattern recognition communities have recently witnessed a surge
of feature-based methods in object recognition and image retrieval applications. These …

A laplacian for nonmanifold triangle meshes

N Sharp, K Crane - Computer Graphics Forum, 2020 - Wiley Online Library
We describe a discrete Laplacian suitable for any triangle mesh, including those that are
nonmanifold or nonorientable (with or without boundary). Our Laplacian is a robust drop‐in …

[PDF][PDF] Discrete Laplace operators: no free lunch

M Wardetzky, S Mathur, F Kälberer… - … on Geometry processing, 2007 - brickisland.net
Discrete Laplace operators are ubiquitous in applications spanning geometric modeling to
simulation. For robustness and efficiency, many applications require discrete operators that …

A Gromov-Hausdorff framework with diffusion geometry for topologically-robust non-rigid shape matching

AM Bronstein, MM Bronstein, R Kimmel… - International Journal of …, 2010 - Springer
In this paper, the problem of non-rigid shape recognition is studied from the perspective of
metric geometry. In particular, we explore the applicability of diffusion distances within the …

Discrete conformal equivalence of polyhedral surfaces

M Gillespie, B Springborn, K Crane - ACM Transactions on Graphics …, 2021 - dl.acm.org
This paper describes a numerical method for surface parameterization, yielding maps that
are locally injective and discretely conformal in an exact sense. Unlike previous methods for …

A discrete uniformization theorem for polyhedral surfaces II

X Gu, R Guo, F Luo, J Sun, T Wu - Journal of differential geometry, 2018 - projecteuclid.org
A notion of discrete conformality for hyperbolic polyhedral surfaces is introduced in this
paper. This discrete conformality is shown to be computable. It is proved that each …

Scene flow from point clouds with or without learning

JK Pontes, J Hays, S Lucey - 2020 international conference on …, 2020 - ieeexplore.ieee.org
Scene flow is the three-dimensional (3D) motion field of a scene. It provides information
about the spatial arrangement and rate of change of objects in dynamic environments …

Discrete conformal map**s via circle patterns

L Kharevych, B Springborn, P Schröder - ACM Transactions on Graphics …, 2006 - dl.acm.org
We introduce a novel method for the construction of discrete conformal map**s from
surface meshes of arbitrary topology to the plane. Our approach is based on circle patterns …