An Optimal Transport Approach to Robust Reconstruction and Simplification of 2D Shapes
Fernando de Goes, David Cohen-Steiner, Pierre Alliez, Mathieu Desbrun
In Computer Graphics Forum, 30(5), August 2011.
Abstract: We propose a robust 2D shape reconstruction and simplification algorithm which takes as input a defect-laden point set with noise and outliers. We introduce an optimal-transport driven approach where the input point set, considered as a sum of Dirac measures, is approximated by a simplicial complex considered as a sum of uniform measures on 0- and 1-simplices. A fine-to-coarse scheme is devised to construct the resulting simplicial complex through greedy decimation of a Delaunay triangulation of the input point set. Our method performs well on a variety of examples ranging from line drawings to grayscale images, with or without noise, features, and boundaries.
@article{deGoes:2011:AOT,
author = {Fernando de Goes and David Cohen-Steiner and Pierre Alliez and Mathieu Desbrun},
title = {An Optimal Transport Approach to Robust Reconstruction and Simplification of 2D Shapes},
journal = {Computer Graphics Forum},
volume = {30},
number = {5},
pages = {1593--1602},
month = aug,
year = {2011},
}
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