Fuzzy Geodesics and Consistent Sparse Correspondences For: eformable Shapes
Jian Sun, Xiaobai Chen, Thomas A. Funkhouser
In Computer Graphics Forum, 29(5),  2010.
Abstract: A geodesic is a parameterized curve on a Riemannian manifold governed by a second order partial differential equation. Geodesics are notoriously unstable: small perturbations of the underlying manifold may lead to dramatic changes of the course of a geodesic. Such instability makes it difficult to use geodesics in many applications, in particular in the world of discrete geometry. In this paper, we consider a geodesic as the indicator function of the set of the points on the geodesic. From this perspective, we present a new concept called fuzzy geodesics and show that fuzzy geodesics are stable with respect to the Gromov-Hausdorff distance. Based on fuzzy geodesics, we propose a new object called the intersection configuration for a set of points on a shape and demonstrate its effectiveness in the application of finding consistent correspondences between sparse sets of points on shapes differing by extreme deformations.
Keyword(s): I.3.3 [Computer Graphics]: Picture/Image Generation—Line and curve generation
@article{CGF:CGF1762,
  author = {Jian Sun and Xiaobai Chen and Thomas A. Funkhouser},
  title  = {Fuzzy Geodesics and Consistent Sparse Correspondences For: eformable Shapes},
  journal = {Computer Graphics Forum},
  volume = {29},
  number = {5},
  pages = {1535--1544},
  year = {2010},
}
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