347 citations · 642 across the 16 of their papers we have counts for
4 papers · 1 filter
Gradient descent in a generalised Bregman distance framework
Martin Benning, Marta M. Betcke, Matthias J. Ehrhardt +1
We discuss a special form of gradient descent that in the literature has become known as the so-called linearised Bregman iteration. The idea is to replace the classical (squared)…
Acoustic Wave Field Reconstruction from Compressed Measurements with Application in Photoacoustic Tomography
Marta M. Betcke, Ben T. Cox, Nam Huynh +3
We present a method for the recovery of compressively sensed acoustic fields using patterned, instead of point-by-point, detection. From a limited number of such compressed measure…
Nonzero-sum stochastic differential games with impulse controls: a verification theorem with applications
René Aïd, Matteo Basei, Giorgia Callegaro +2
We consider a general nonzero-sum impulse game with two players. The main mathematical contribution of the paper is a verification theorem which provides, under some regularity con…
On the Adjoint Operator in Photoacoustic Tomography
Simon R. Arridge, Marta M. Betcke, Ben T. Cox +2
Photoacoustic Tomography (PAT) is an emerging biomedical "imaging from coupled physics" technique, in which the image contrast is due to optical absorption, but the information is…