Search Results for author: Heinz Handels

Found 11 papers, 2 papers with code

Anatomical Conditioning for Contrastive Unpaired Image-to-Image Translation of Optical Coherence Tomography Images

2 code implementations8 Apr 2024 Marc S. Seibel, Hristina Uzunova, Timo Kepp, Heinz Handels

For a unified analysis of medical images from different modalities, data harmonization using image-to-image (I2I) translation is desired.

Contrastive Learning Decoder +3

Memory-efficient GAN-based Domain Translation of High Resolution 3D Medical Images

no code implementations6 Oct 2020 Hristina Uzunova, Jan Ehrhardt, Heinz Handels

The key idea to enable memory-efficient image generation is to first generate a low-resolution version of the image followed by the generation of patches of constant sizes but successively growing resolutions.

Image Generation Translation

Segmentation of Retinal Low-Cost Optical Coherence Tomography Images using Deep Learning

no code implementations23 Jan 2020 Timo Kepp, Helge Sudkamp, Claus von der Burchard, Hendrik Schenke, Peter Koch, Gereon Hüttmann, Johann Roider, Mattias P. Heinrich, Heinz Handels

It is shown that the CNN-based approach can segment the retina with high accuracy, whereas the segmentation of the PED proves to be challenging.

Denoising

Robust GPU-based Virtual Reality Simulation of Radio Frequency Ablations for Various Needle Geometries and Locations

no code implementations11 Jul 2019 Niclas Kath, Heinz Handels, Andre Mastmeyer

Methods: This publication presents a new GPU-based, accurate method for the simulation of radio-frequency ablations for lesions at the needle tip in general and for an existing visuo-haptic 4D VR simulator.

Multi-scale GANs for Memory-efficient Generation of High Resolution Medical Images

2 code implementations2 Jul 2019 Hristina Uzunova, Jan Ehrhardt, Fabian Jacob, Alex Frydrychowicz, Heinz Handels

Currently generative adversarial networks (GANs) are rarely applied to medical images of large sizes, especially 3D volumes, due to their large computational demand.

Translation

Population-based Respiratory 4D Motion Atlas Construction and its Application for VR Simulations of Liver Punctures

no code implementations5 Dec 2017 Andre Mastmeyer, Matthias Wilms, Heinz Handels

Virtual reality (VR) training simulators of liver needle insertion in the hepatic area of breathing virtual patients currently need 4D data acquisitions as a prerequisite.

Interpatient Respiratory Motion Model Transfer for Virtual Reality Simulations of Liver Punctures

no code implementations26 Jul 2017 Andre Mastmeyer, Matthias Wilms, Heinz Handels

Then the methodology shown here allows the transfer of existing reference respiratory motion models of a 4D reference patient to a new static 3D patient.

Evaluation of Direct Haptic 4D Volume Rendering of Partially Segmented Data for Liver Puncture Simulation

no code implementations19 May 2017 Andre Mastmeyer, Dirk Fortmeier, Heinz Handels

The evaluation of the force algorithms compared to a force output from fully manually segmented gold-standard patient models, yields a low mean of 0. 12 N root mean squared force error and up to 1. 6 N for systematic maximum absolute errors.

Model-based Catheter Segmentation in MRI-images

no code implementations18 May 2017 Andre Mastmeyer, Guillaume Pernelle, Lauren Barber, Steve Pieper, Dirk Fortmeier, Sandy Wells, Heinz Handels, Tina Kapur

Accurate and reliable segmentation of catheters in MR-guided interventions remains a challenge, and a step of critical importance in clinical workflows.

Segmentation

Probabilistic Appearance Models for Segmentation and Classification

no code implementations ICCV 2015 Julia Kruger, Jan Ehrhardt, Heinz Handels

Statistical shape and appearance models are often based on the accurate identification of one-to-one correspondences in a training data set.

Classification General Classification

Cannot find the paper you are looking for? You can Submit a new open access paper.