activity
20062024
most citedSparse Regularization with Penalty Term

180 citations · 1.3k across the 95 of their papers we have counts for

collaborators

107 papers

eess.IV2024

Sparse2Inverse: Self-supervised inversion of sparse-view CT data

Nadja Gruber, Johannes Schwab, Elke Gizewski +1

Sparse-view computed tomography (CT) enables fast and low-dose CT imaging, an essential feature for patient-save medical imaging and rapid non-destructive testing. In sparse-view C…

cs.CV2024

Design, Implementation and Analysis of a Compressed Sensing Photoacoustic Projection Imaging System

Markus Haltmeier, Matthias Ye, Karoline Felbermayer +2

Significance: Compressed sensing (CS) uses special measurement designs combined with powerful mathematical algorithms to reduce the amount of data to be collected while maintaining…

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…

physics.med-ph2024★ 10 cited

Self-Supervised Learning for Improved Calibrationless Radial MRI with NLINV-Net

Moritz Blumenthal, Chiara Fantinato, Christina Unterberg-Buchwald +3

Purpose: To develop a neural network architecture for improved calibrationless reconstruction of radial data when no ground truth is available for training. Methods: NLINV-Net is a…

math.NA2023

Breaking the Resolution limit in Photoacoustic Imaging using Positivity and Sparsity

Peter Burgholzer, Johannes Bauer-Marschallinger, Mike Hettich +1

In this tutorial, we aim to directly recreate some of our "aha" moments when exploring the impact of heat diffusion on the spatial resolution limit of photothermal imaging. Our obj…

math.NA2023★ 9 cited

Heat diffusion blurs photothermal images with increasing depth

Peter Burgholzer, Günther Mayr, Gregor Thummerer +1

In this tutorial, we aim to directly recreate some of our "aha" moments when exploring the impact of heat diffusion on the spatial resolution limit of photothermal imaging. Our obj…