24 citations · 34 across the 4 of their papers we have counts for
5 papers
Finite-time Cholesky Factorization
Rahul Manavalan, Carola Bibiane Schoenlieb
We propose an algorithm for estimating the Cholesky factorization of positive, semi-definite matrices without pivoting. Our method has the same data access pattern as the canonical…
Joint phase reconstruction and magnitude segmentation from velocity-encoded MRI data
Veronica Corona, Martin Benning, Lynn F. Gladden +3
Velocity-encoded MRI is an imaging technique used in different areas to assess flow motion. Some applications include medical imaging such as cardiovascular blood flow studies, and…
Compressed Sensing Plus Motion (CS+M): A New Perspective for Improving Undersampled MR Image Reconstruction
Angelica I. Aviles-Rivero, Noémie Debroux, Guy Williams +2
We address the problem of reconstructing high quality images from undersampled MRI data. This is a challenging task due to the highly ill-posed nature of the problem. In particular…
Enhancing joint reconstruction and segmentation with non-convex Bregman iteration
Veronica Corona, Martin Benning, Matthias J. Ehrhardt +6
All imaging modalities such as computed tomography (CT), emission tomography and magnetic resonance imaging (MRI) require a reconstruction approach to produce an image. A common im…
Local Convergence Properties of SAGA/Prox-SVRG and Acceleration
Clarice Poon, Jingwei Liang, Carola-Bibiane Schönlieb
Over the past ten years, driven by large scale optimisation problems arising from machine learning, the development of stochastic optimisation methods have witnessed a tremendous g…