69 citations · 226 across the 28 of their papers we have counts for
4 papers · 1 filter
Hyperparameter selection for Discrete Mumford-Shah
Charles-Gérard Lucas, Barbara Pascal, Nelly Pustelnik +1
This work focuses on a parameter-free joint piecewise smooth image denoising and contour detection. Formulated as the minimization of a discrete Mumford-Shah functional and estimat…
Nonsmooth convex optimization to estimate the Covid-19 reproduction number space-time evolution with robustness against low quality data
Barbara Pascal, Patrice Abry, Nelly Pustelnik +3
Daily pandemic surveillance, often achieved through the estimation of the reproduction number, constitutes a critical challenge for national health authorities to design countermea…
RHAPSODIE: Reconstruction of High-contrAst Polarized SOurces and Deconvolution for cIrcumstellar Environments
Laurence Denneulin, Maud Langlois, Éric Thiébaut +1
Polarimetric imaging is one of the most effective techniques for high-contrast imaging and characterization of circumstellar environments. These environments can be characterized t…
Theoretical and numerical comparison of first-order algorithms for cocoercive equations and smooth convex optimization
Luis Briceño-Arias, Nelly Pustelnik
This paper provides a theoretical and numerical comparison of classical first-order splitting methods for solving smooth convex optimization problems and cocoercive equations. From…