Bayesian Imaging for Radio Interferometry with Score-Based Priors

Noe Dia; M. J. Yantovski-Barth; Alexandre Adam; Micah Bowles; Pablo Lemos; Anna M. M. Scaife; Yashar Hezaveh; Laurence Perreault-Levasseur

arXiv · 2311.18012

Bayesian Imaging for Radio Interferometry with Score-Based Priors

Noe Dia·M. J. Yantovski-Barth·Alexandre Adam·Micah Bowles·Pablo Lemos·Anna M. M. Scaife·Yashar Hezaveh·Laurence Perreault-Levasseur

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Abstract

The inverse imaging task in radio interferometry is a key limiting factor to retrieving Bayesian uncertainties in radio astronomy in a computationally effective manner. We use a score-based prior derived from optical images of galaxies to recover images of protoplanetary disks from the DSHARP survey. We demonstrate that our method produces plausible posterior samples despite the misspecified galaxy prior. We show that our approach produces results which are competitive with existing radio interferometry imaging algorithms.

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Noe Dia, M. J. Yantovski-Barth, Alexandre Adam, Micah Bowles, Pablo Lemos, Anna M. M. Scaife, Yashar Hezaveh, Laurence Perreault-Levasseur. 2023-11-29. Bayesian Imaging for Radio Interferometry with Score-Based Priors. https://arxiv.org/abs/2311.18012

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