Search Results for author: Georg Rose

Found 11 papers, 9 papers with code

Liver Segmentation using Turbolift Learning for CT and Cone-beam C-arm Perfusion Imaging

1 code implementation20 Jul 2022 Hana Haseljić, Soumick Chatterjee, Robert Frysch, Vojtěch Kulvait, Vladimir Semshchikov, Bennet Hensen, Frank Wacker, Inga Brüsch, Thomas Werncke, Oliver Speck, Andreas Nürnberger, Georg Rose

This paper shows the potential of segmenting the liver from CT, CBCT, and CBCT TST, learning from the available limited training data, which can possibly be used in the future for the visualisation and evaluation of the perfusion maps for the treatment evaluation of liver diseases.

Liver Segmentation Segmentation

Primal-Dual UNet for Sparse View Cone Beam Computed Tomography Volume Reconstruction

1 code implementation11 May 2022 Philipp Ernst, Soumick Chatterjee, Georg Rose, Andreas Nürnberger

In this paper, the Primal-Dual UNet for sparse view CT reconstruction is modified to be applicable to cone beam projections and perform reconstructions of entire volumes instead of slices.

Dual Branch Prior-SegNet: CNN for Interventional CBCT using Planning Scan and Auxiliary Segmentation Loss

1 code implementation11 May 2022 Philipp Ernst, Suhita Ghosh, Georg Rose, Andreas Nürnberger

This paper proposes an extension to the Dual Branch Prior-Net for sparse view interventional CBCT reconstruction incorporating a high quality planning scan.

DDoS-UNet: Incorporating temporal information using Dynamic Dual-channel UNet for enhancing super-resolution of dynamic MRI

1 code implementation10 Feb 2022 Soumick Chatterjee, Chompunuch Sarasaen, Georg Rose, Andreas Nürnberger, Oliver Speck

However, such MRI acquisition with high temporal resolution suffers from limited spatial resolution - also known as the spatio-temporal trade-off of dynamic MRI.

SSIM Super-Resolution

Sinogram upsampling using Primal-Dual UNet for undersampled CT and radial MRI reconstruction

1 code implementation26 Dec 2021 Philipp Ernst, Soumick Chatterjee, Georg Rose, Oliver Speck, Andreas Nürnberger

However, the undersampled reconstruction problem for these two modalities was always considered as two different problems and tackled separately by different research works.

MRI Reconstruction SSIM

Cutting Voxel Projector a New Approach to Construct 3D Cone Beam CT Operator

1 code implementation19 Oct 2021 Vojtěch Kulvait, Georg Rose

We have implemented this cutting voxel projector and a less accurate, speed-optimized version of it together with two established projectors, a ray tracing projector based on Siddon's algorithm and a TT footprint projector.

ReconResNet: Regularised Residual Learning for MR Image Reconstruction of Undersampled Cartesian and Radial Data

4 code implementations16 Mar 2021 Soumick Chatterjee, Mario Breitkopf, Chompunuch Sarasaen, Hadya Yassin, Georg Rose, Andreas Nürnberger, Oliver Speck

It has been shown that the proposed framework can successfully reconstruct even for an acceleration factor of 20 for Cartesian (0. 968$\pm$0. 005) and 17 for radially (0. 962$\pm$0. 012) sampled data.

Image Reconstruction SSIM

Breathing deformation model -- application to multi-resolution abdominal MRI

no code implementations10 Oct 2019 Chompunuch Sarasaen, Soumick Chatterjee, Mario Breitkopf, Domenico Iuso, Georg Rose, Oliver Speck

This deformation model was then applied to the high resolution images to obtain high resolution images of different breathing phases.

Image Registration

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