4 papers
Variational Deep Unfolding with Mamba-Based Nonlocal Modeling for Underwater Image Enhancement
Daniel Torres, Julia Navarro, Catalina Sbert +1
Underwater imaging plays a crucial role in ocean engineering, although captured data often suffer from poor visibility and color distortion. To address these challenges, we propose…
Nonlocal BV and nonlocal Sobolev spaces induced by nonfractional weight functions
Francesc Alcover, Joan Duran, Ramon Oliver-Bonafoux +1
In this paper, we expand upon the theory of the space of functions with nonlocal weighted bounded variation, first introduced by Kindermann et.al. in 2005 and later generalized by…
Nonlocal Retinex-Based Variational Model and its Deep Unfolding Twin for Low-Light Image Enhancement
Daniel Torres, Joan Duran, Julia Navarro +1
Images captured under low-light conditions present significant limitations in many applications, as poor lighting can obscure details, reduce contrast, and hide noise. Removing the…
Super-Resolution of Sentinel-2 Images Using a Geometry-Guided Back-Projection Network with Self-Attention
Ivan Pereira-Sánchez, Daniel Torres, Francesc Alcover +4
The Sentinel-2 mission provides multispectral imagery with 13 bands at resolutions of 10m, 20m, and 60m. In particular, the 10m bands offer fine structural detail, while the 20m ba…