460 citations · 1.2k across the 40 of their papers we have counts for
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math.OC2014★ 63 cited
Testable uniqueness conditions for empirical assessment of undersampling levels in total variation-regularized x-ray CT
Jakob S. Jørgensen, Christian Kruschel, Dirk A. Lorenz
We study recoverability in fan-beam computed tomography (CT) with sparsity and total variation priors: how many underdetermined linear measurements suffice for recovering images of…
math.OC2014
A sparse Kaczmarz solver and a linearized Bregman method for online compressed sensing
Dirk A. Lorenz, Stephan Wenger, Frank Schöpfer +1
An algorithmic framework to compute sparse or minimal-TV solutions of linear systems is proposed. The framework includes both the Kaczmarz method and the linearized Bregman method…