56 citations · 199 across the 40 of their papers we have counts for
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Geometric Numerical Integration of the Assignment Flow
Alexander Zeilmann, Fabrizio Savarino, Stefania Petra +1
The assignment flow is a smooth dynamical system that evolves on an elementary statistical manifold and performs contextual data labeling on a graph. We derive and introduce the li…
Phase Transitions and Cosparse Tomographic Recovery of Compound Solid Bodies from Few Projections
Andreea Deniţiu, Stefania Petra, Claudius Schnörr +1
We study unique recovery of cosparse signals from limited-angle tomographic measurements of two- and three-dimensional domains. Admissible signals belong to the union of subspaces…
Critical Parameter Values and Reconstruction Properties of Discrete Tomography: Application to Experimental Fluid Dynamics
Stefania Petra, Christoph Schnörr, Andreas Schröder
We analyze representative ill-posed scenarios of tomographic PIV with a focus on conditions for unique volume reconstruction. Based on sparse random seedings of a region of interes…
Average Case Recovery Analysis of Tomographic Compressive Sensing
Stefania Petra, Christoph Schnörr
The reconstruction of three-dimensional sparse volume functions from few tomographic projections constitutes a challenging problem in image reconstruction and turns out to be a par…