4 papers
Variational regularization of the weighted conical Radon transform
Markus Haltmeier, Daniela Schiefeneder
Recovering a function from integrals over conical surfaces recently got significant interest. It is relevant for emission tomography with Compton cameras and other imaging applicat…
Singular Support of Minimizers of the Causal Variational Principle on the Sphere
Lucia Bäuml, Felix Finster, Daniela Schiefeneder +1
The support of minimizing measures of the causal variational principle on the sphere is analyzed. It is proven that in the case , the support of every minimizing measur…
Inversion of the attenuated V-line transform for SPECT with Compton cameras
Markus Haltmeier, Sunghwan Moon, Daniela Schiefeneder
The Compton camera is a promising alternative to the Anger camera for imaging gamma radiation, with the potential to significantly increase the sensitivity of SPECT. Two-dimensiona…
The Radon Transform over Cones with Vertices on the Sphere and Orthogonal Axes
Daniela Schiefeneder, Markus Haltmeier
Recovering a function from its integrals over circular cones recently gained significance because of its relevance to novel medical imaging technologies such emission tomography us…