3 papers
math.OC2025
Decoupled Solution for Composite Sparse-plus-Smooth Inverse Problems
Adrian Jarret, Julien Fageot
We consider composite linear inverse problems where the signal to recover is modeled as a sum of two functions. We study a variational framework formulated as an optimization probl…
astro-ph.IM2024
PolyCLEAN: Atomic Optimization for Super-Resolution Imaging and Uncertainty Estimation in Radio Interferometry
Adrian Jarret, Sepand Kashani, Joan Rué-Queralt +3
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…
eess.SP2024
A Decoupled Approach for Composite Sparse-plus-Smooth Penalized Optimization
Adrian Jarret, Valérie Costa, Julien Fageot
We consider a linear inverse problem whose solution is expressed as a sum of two components: one smooth and the other sparse. This problem is addressed by minimizing an objective f…