Search Results for author: Marc Dewey

Found 4 papers, 1 papers with code

Fully automated quantification of in vivo viscoelasticity of prostate zones using magnetic resonance elastography with Dense U-net segmentation

no code implementations21 Jun 2021 Nader Aldoj, Federico Biavati, Marc Dewey, Anja Hennemuth, Patrick Asbach, Ingolf Sack

Combinations of these data were used to train Dense U-nets with manually segmented masks of the entire prostate gland (PG), central zone (CZ), and peripheral zone (PZ) in 30 patients and to validate them in 10 patients.

Image Segmentation Semantic Segmentation +1

Unsupervised Adaptive Neural Network Regularization for Accelerated Radial Cine MRI

no code implementations10 Feb 2020 Andreas Kofler, Marc Dewey, Tobias Schaeffter, Christoph Kolbitsch, Markus Haltmeier

We compare the proposed reconstruction scheme to two ground truth-free reconstruction methods, namely a well known Total Variation (TV) minimization and an unsupervised adaptive Dictionary Learning (DIC) method.

Dictionary Learning

Neural Networks-based Regularization for Large-Scale Medical Image Reconstruction

no code implementations19 Dec 2019 Andreas Kofler, Markus Haltmeier, Tobias Schaeffter, Marc Kachelrieß, Marc Dewey, Christian Wald, Christoph Kolbitsch

In this paper we present a generalized Deep Learning-based approach for solving ill-posed large-scale inverse problems occuring in medical image reconstruction.

Image Reconstruction SSIM

Spatio-Temporal Deep Learning-Based Undersampling Artefact Reduction for 2D Radial Cine MRI with Limited Data

1 code implementation1 Apr 2019 Andreas Kofler, Marc Dewey, Tobias Schaeffter, Christian Wald, Christoph Kolbitsch

Even when trained on only one single subject without data-augmentation, our approach yields results which are similar to the ones obtained on a large training dataset.

Data Augmentation Dictionary Learning

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