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Cauchy proximal splitting (CPS)

Achim, Alin and Karakus, Oktay 2020. Cauchy proximal splitting (CPS). University of Bristol. Available at: https://doi.org/10.5523/bris.15y437loa26cr2nx8gnn3...

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Abstract

These Matlab functions implement a proximal splitting method involving a non-convex penalty function based on the heavy-tailed Cauchy distribution. A function for calculating the proximal operator of the Cauchy prior is provided, and two examples are included to illustrate how to perform cost function optimisation with a forward-backward (FB) -based algorithm that implements the corresponding Cauchy proximal splitting (CPS) method. The two signal processing examples include 1D signal denoising in the frequency domain and image de-blurring.

Item Type: Dataset
Date Type: Published Online
Status: Published
Schools: Computer Science & Informatics
Publisher: University of Bristol
Last Modified: 22 Dec 2021 09:36
URI: https://orca.cardiff.ac.uk/id/eprint/145199

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