Tikhonov Regularization of Sphere-Valued Signals
Optimization and Control
2022-07-26 v1 Signal Processing
Abstract
It is common to have to process signals, whose values are points on the 3-D sphere. We consider a Tikhonov-type regularization model to smoothen or interpolate sphere-valued signals defined on arbitrary graphs. We propose a convex relaxation of this nonconvex problem as a semidefinite program, which is easy to solve numerically and is efficient in practice.
Cite
@article{arxiv.2207.12330,
title = {Tikhonov Regularization of Sphere-Valued Signals},
author = {Laurent Condat},
journal= {arXiv preprint arXiv:2207.12330},
year = {2022}
}