Scalable Bayesian uncertainty quantification with data-driven priors for radio interferometric imaging

TI Liaudat, M Mars, MA Price, M Pereyra… - RAS Techniques …, 2024 - academic.oup.com
Next-generation radio interferometers like the Square Kilometer Array have the potential to
unlock scientific discoveries thanks to their unprecedented angular resolution and …

Scalable precision wide-field imaging in radio interferometry–II. AIRI validated on ASKAP data

AG Wilber, A Dabbech, M Terris… - Monthly Notices of the …, 2023 - academic.oup.com
Accompanying Part I, this sequel delineates a validation of the recently proposed AI for
Regularization in radio-interferometric Imaging (AIRI) algorithm on observations from the …

CLEANing Cygnus A deep and fast with R2D2

A Dabbech, A Aghabiglou, C San Chu… - The Astrophysical …, 2024 - iopscience.iop.org
A novel deep-learning paradigm for synthesis imaging by radio interferometry in astronomy
was recently proposed, dubbed" Residual-to-Residual DNN series for high-Dynamic range …

The R2D2 deep neural network series paradigm for fast precision imaging in radio astronomy

A Aghabiglou, C San Chu, A Dabbech… - The Astrophysical …, 2024 - iopscience.iop.org
Radio-interferometric imaging entails solving high-resolution high-dynamic-range inverse
problems from large data volumes. Recent image reconstruction techniques grounded in …

Scalable precision wide-field imaging in radio interferometry: I. uSARA validated on ASKAP data

AG Wilber, A Dabbech, A Jackson… - Monthly Notices of the …, 2023 - academic.oup.com
As Part I of a paper series showcasing a new imaging framework, we consider the recently
proposed unconstrained Sparsity Averaging Reweighted Analysis (uSARA) optimization …

Deep network series for large-scale high-dynamic range imaging

A Aghabiglou, M Terris, A Jackson… - ICASSP 2023-2023 …, 2023 - ieeexplore.ieee.org
We propose a new approach for large-scale high-dynamic range computational imaging.
Deep Neural Networks (DNNs) trained end-to-end can solve linear inverse imaging …

PolyCLEAN: Atomic Optimization for Super-Resolution Imaging and Uncertainty Estimation in Radio Interferometry

Context. Imaging in radio interferometry requires solving an ill-posed noisy inverse problem,
for which the most adopted algorithm is the original CLEAN algorithm and its variants …

A distributed Gibbs sampler with hypergraph structure for high-dimensional inverse problems

PA Thouvenin, A Repetti… - … of Computational and …, 2022 - researchportal.hw.ac.uk
Sampling-based algorithms are classical approaches to perform Bayesian inference in
inverse problems. They provide estimators with the associated credibility intervals to quantify …

Plug-and-play imaging with model uncertainty quantification in radio astronomy

M Terris, C Tang, A Jackson, Y Wiaux - arXiv preprint arXiv:2312.07137, 2023 - arxiv.org
Plug-and-Play (PnP) algorithms are appealing alternatives to proximal algorithms when
solving inverse imaging problems. By learning a Deep Neural Network (DNN) behaving as a …

PolyCLEAN: When H\" ogbom meets Bayes--Fast Super-Resolution Imaging with Bayesian MAP Estimation

A Jarret, S Kashani, J Rué-Queralt, P Hurley… - arXiv preprint arXiv …, 2024 - arxiv.org
Aims: We address two issues for the adoption of convex optimization in radio interferometric
imaging. First, a method for a fine resolution setup is proposed which scales naturally in …