3 papers
math.NA2026
PnP-IPA: A Provably Convergent Plug-and-Play Inexact Proximal Algorithm for Nonconvex Imaging Problems
Cristiano Parenti, Silvia Bonettini, Marco Prato
Plug-and-Play (PnP) methods have emerged as a highly effective paradigm for solving imaging inverse problems by replacing traditional proximity operators of regularization terms wi…
math.NA2024
Algorithmic unfolding for image reconstruction and localization problems in fluorescence microscopy
Silvia Bonettini, Luca Calatroni, Danilo Pezzi +1
We propose an unfolded accelerated projected-gradient descent procedure to estimate model and algorithmic parameters for image super-resolution and molecule localization problems i…
eess.IV2022
Explainable bilevel optimization: an application to the Helsinki deblur challenge
Silvia Bonettini, Giorgia Franchini, Danilo Pezzi +1
In this paper we present a bilevel optimization scheme for the solution of a general image deblurring problem, in which a parametric variational-like approach is encapsulated withi…