9 citations · 15 across the 7 of their papers we have counts for
10 papers
Multilevel fista for image restoration
Guillaume Lauga, Elisa Riccietti, Nelly Pustelnik +1
This paper presents a multilevel FISTA algorithm, based on the use of the Moreau envelope to build the correction brought by the coarse models, which is easy to compute when the ex…
Alternative design of DeepPDNet in the context of image restoration
Mingyuan Jiu, Nelly Pustelnik
This work designs an image restoration deep network relying on unfolded Chambolle-Pock primal-dual iterations. Each layer of our network is built from Chambolle-Pock iterations whe…
Temporal evolution of the Covid19 pandemic reproduction number: Estimations from proximal optimization to Monte Carlo sampling
Patrice Abry, Gersende Fort, Barbara Pascal +1
Monitoring the evolution of the Covid19 pandemic constitutes a critical step in sanitary policy design. Yet, the assessment of the pandemic intensity within the pandemic period rem…
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…
Primal-dual splitting scheme with backtracking for handling with epigraphic constraint and sparse analysis regularization
Laurence Denneulin, Nelly Pustelnik, Maud Langlois +2
The convergence of many proximal algorithms involving a gradient descent relies on its Lipschitz constant. To avoid computing it, backtracking rules can be used. While such a rule…
Parameter-free and fast nonlinear piecewise filtering. Application to experimental physics
Barbara Pascal, Nelly Pustelnik, Patrice Abry +2
Numerous fields of nonlinear physics, very different in nature, produce signals and images, that share the common feature of being essentially constituted of piecewise homogeneous…