Learned reconstruction methods with convergence guarantees: A survey of concepts and applications

S Mukherjee, A Hauptmann, O Öktem… - IEEE Signal …, 2023 - ieeexplore.ieee.org
In recent years, deep learning has achieved remarkable empirical success for image
reconstruction. This has catalyzed an ongoing quest for the precise characterization of the …

Learning to optimize: A primer and a benchmark

T Chen, X Chen, W Chen, H Heaton, J Liu… - Journal of Machine …, 2022 - jmlr.org
Learning to optimize (L2O) is an emerging approach that leverages machine learning to
develop optimization methods, aiming at reducing the laborious iterations of hand …

Neural‐network‐based regularization methods for inverse problems in imaging

A Habring, M Holler - GAMM‐Mitteilungen, 2024 - Wiley Online Library
This review provides an introduction to—and overview of—the current state of the art in
neural‐network based regularization methods for inverse problems in imaging. It aims to …

A neural-network-based convex regularizer for inverse problems

A Goujon, S Neumayer, P Bohra… - IEEE Transactions …, 2023 - ieeexplore.ieee.org
The emergence of deep-learning-based methods to solve image-reconstruction problems
has enabled a significant increase in quality. Unfortunately, these new methods often lack …

Learning the optimal Tikhonov regularizer for inverse problems

GS Alberti, E De Vito, M Lassas… - Advances in …, 2021 - proceedings.neurips.cc
In this work, we consider the linear inverse problem $ y= Ax+\varepsilon $, where $ A\colon
X\to Y $ is a known linear operator between the separable Hilbert spaces $ X $ and $ Y …

Provably convergent plug-and-play quasi-Newton methods

HY Tan, S Mukherjee, J Tang, CB Schönlieb - SIAM Journal on Imaging …, 2024 - SIAM
Plug-and-Play (PnP) methods are a class of efficient iterative methods that aim to combine
data fidelity terms and deep denoisers using classical optimization algorithms, such as ISTA …

Feasibility-based fixed point networks

H Heaton, S Wu Fung, A Gibali, W Yin - Fixed Point Theory and Algorithms …, 2021 - Springer
Inverse problems consist of recovering a signal from a collection of noisy measurements.
These problems can often be cast as feasibility problems; however, additional regularization …

Uniformly convex neural networks and non-stationary iterated network Tikhonov (iNETT) method

D Bianchi, G Lai, W Li - Inverse Problems, 2023 - iopscience.iop.org
We propose a non-stationary iterated network Tikhonov (iNETT) method for the solution of ill-
posed inverse problems. The iNETT employs deep neural networks to build a data-driven …

What's in a Prior? Learned Proximal Networks for Inverse Problems

Z Fang, S Buchanan, J Sulam - arxiv preprint arxiv:2310.14344, 2023 - arxiv.org
Proximal operators are ubiquitous in inverse problems, commonly appearing as part of
algorithmic strategies to regularize problems that are otherwise ill-posed. Modern deep …

Deep equilibrium learning of explicit regularization functionals for imaging inverse problems

Z Zou, J Liu, B Wohlberg… - IEEE Open Journal of …, 2023 - ieeexplore.ieee.org
There has been significant recent interest in the use of deep learning for regularizing
imaging inverse problems. Most work in the area has focused on regularization imposed …