39 citations · 312 across the 32 of their papers we have counts for
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math.OC2019★ 6 cited
The ML-EM algorithm in continuum: sparse measure solutions
Camille Pouchol, Olivier Verdier
Linear inverse problems with Poisson noise and non-negative unknown are ubiquitous in applications, for instance in Positron Emission Tomography (PET) in medical…
eess.IV2019★ 9 cited
Spatiotemporal PET reconstruction using ML-EM with learned diffeomorphic deformation
Ozan Öktem, Camille Pouchol, Olivier Verdier
Patient movement in emission tomography deteriorates reconstruction quality because of motion blur. Gating the data improves the situation somewhat: each gate contains a movement p…
math.DG2019★ 7 cited
Invariant connections, Lie algebra actions, and foundations of numerical integration on manifolds
Hans Z. Munthe-Kaas, Ari Stern, Olivier Verdier
Motivated by numerical integration on manifolds, we relate the algebraic properties of invariant connections to their geometric properties. Using this perspective, we generalize so…