Discretizations of the total variation for singular functions

April 22, 2020 2:00pm UTC

April 22, 2020 4:00pm UTC +02 (Host local time)

Speaker: Antonin Chambolle (Ecole Polytechnique) - Hosted by One World Seminar Series

Abstract:
In this talk, based on joint work with Corentin Caillaud and Thomas Pock, I will discuss the merits of some finite differences or finite elements discretizations of the total variation functional. I will mention error bounds for the recovery of sharp discontinuities, inpainting straight lines in 2D, and trying to improve on some recent approaches proposed in the literature. (...)