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arXiv · 2207.12330

Tikhonov Regularization of Sphere-Valued Signals

Laurent Condat
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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.

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Laurent Condat. 2022-07-25. Tikhonov Regularization of Sphere-Valued Signals. https://arxiv.org/abs/2207.12330

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