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math.NA2026
ELIPPS: Exact Learning for Inverse Problems from Partial Self-supervision
Benjamin Walder, Markus Haltmeier, Lukas Neumann +2
In undersampled inverse problems (such as sparse-view computed tomography), only a small number of measurements are collected, which reduces radiation exposure and acquisition time…
math.NA2024
Derivative-Free iterative One-Step Reconstruction for Multispectral CT
Thomas Prohaszka, Lukas Neumann, Markus Haltmeier
Image reconstruction in Multispectral Computed Tomography (MSCT) requires solving a challenging nonlinear inverse problem, commonly tackled via iterative optimization algorithms. E…