Spherical optimal transportation
… the optimal transportation map on the sphere. Constructing with a variational principle approach,
our spherical OT … energy minimization problem and building a spherical power diagram. …
our spherical OT … energy minimization problem and building a spherical power diagram. …
A convergence framework for optimal transport on the sphere
BF Hamfeldt, AGR Turnquist - Numerische Mathematik, 2022 - Springer
… We consider the problem of optimal transportation on the sphere. That is, given two prescribed
density functions \(f_1\) and \(f_2\), we seek a mapping \(T:{\mathbb {S}}^{2}\rightarrow {\…
density functions \(f_1\) and \(f_2\), we seek a mapping \(T:{\mathbb {S}}^{2}\rightarrow {\…
Sliced optimal transport on the sphere
… More precisely, sliced optimal transport is the concatenation of the well-… transport
problems. Inspired by this concept, we propose two adaptions for optimal transport on the 2-sphere. …
problems. Inspired by this concept, we propose two adaptions for optimal transport on the 2-sphere. …
Linear spherical sliced optimal transport: A fast metric for comparing spherical data
… where the L2 distance approximates the optimal transport distance, thereby simplifying …
Spherical Sliced Optimal Transport (LSSOT) framework, which utilizes slicing to embed spherical …
Spherical Sliced Optimal Transport (LSSOT) framework, which utilizes slicing to embed spherical …
Regularity of optimal transport on compact, locally nearly spherical, manifolds
P Delanoë, Y Ge - Journal für die reine und angewandte …, 2010 - univ-cotedazur.hal.science
… manifold M, we look for a smooth optimal transportation map G, pushing one measure to
the … –Wang enabled Loeper to treat the standard sphere case by overcoming two difficulties, …
the … –Wang enabled Loeper to treat the standard sphere case by overcoming two difficulties, …
Using optimal transport to improve spherical harmonic quantification of complex biological shapes
… using spherical harmonics. … that optimal transport will improve existing algorithms by using
the energy of the shapes to be quantified to determine the most efficient derivation of spherical …
the energy of the shapes to be quantified to determine the most efficient derivation of spherical …
Bayesian sphere-on-sphere regression with optimal transport maps
… spherical regression as a problem of optimal transport within … for directly parameterizing a
spherical regression map, and … stability of optimal transport maps on the sphere, one that may …
spherical regression map, and … stability of optimal transport maps on the sphere, one that may …
The geometry of optimal transportation
… to the transportation problem by other authors. The connection of c-concavity with mass
transport … include reflection through a sphere or through a plane (for details refer to Appendix B): …
transport … include reflection through a sphere or through a plane (for details refer to Appendix B): …
Hyper-spherical Optimal Transport for Semantic Alignment in Text-to-3D End-to-end Generation
… SOT learns to optimally transport features to align them and … features as illustrated in the
upper sphere in Fig. 1. This … efficiency, we consider introducing optimal transport (OT) to align …
upper sphere in Fig. 1. This … efficiency, we consider introducing optimal transport (OT) to align …
Regularity for the optimal transportation problem with Euclidean distance squared cost on the embedded sphere
J Kitagawa, M Warren - SIAM Journal on Mathematical Analysis, 2012 - SIAM
… The above optimal transportation problem is a formulation of a … is equivalent to an optimal
transportation problem formulated … The optimal transportation problem dealt with in this paper …
transportation problem formulated … The optimal transportation problem dealt with in this paper …