Astrophysics Source Code Library

Making codes discoverable since 1999

Searching for codes credited to 'Bu, An-Yi'

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[submitted] Defringe

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.