Defringe

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Ada Coda
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Joined: Thu May 08, 2014 5:37 am

Defringe

Post by Ada Coda » Wed Oct 13, 2021 10:42 am

Defringe

Abstract: This code corrects fringe artefacts in near-infrared astronomical images taken with old generation CCD cameras. It essentially solves a robust PCA problem, masking out astrophysical sources, and models the contaminants as a linear superposition of (unknown) modes, with (unknown) projection coefficients. The problem uses nuclear norm regularization, which acts as a convex proxy for rank minimization.
The code is written in python, using cupy for GPU acceleration, but will also work on CPUs.

Credit: S. Prunet, A.-Y. Bu

Site: https://github.com/simon-prunet/defringe

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