Search Results for author: Matthias Lenga

Found 12 papers, 1 papers with code

BraSyn 2023 challenge: Missing MRI synthesis and the effect of different learning objectives

no code implementations12 Mar 2024 Ivo M. Baltruschat, Parvaneh Janbakhshi, Matthias Lenga

This work addresses the Brain Magnetic Resonance Image Synthesis for Tumor Segmentation (BraSyn) challenge, which was hosted as part of the Brain Tumor Segmentation (BraTS) challenge in 2023.

Brain Tumor Segmentation Image-to-Image Translation +2

Medical Image Retrieval Using Pretrained Embeddings

no code implementations22 Nov 2023 Farnaz Khun Jush, Tuan Truong, Steffen Vogler, Matthias Lenga

A wide range of imaging techniques and data formats available for medical images make accurate retrieval from image databases challenging.

Medical Image Retrieval Retrieval

fRegGAN with K-space Loss Regularization for Medical Image Translation

1 code implementation28 Mar 2023 Ivo M. Baltruschat, Felix Kreis, Alexander Hoelscher, Melanie Dohmen, Matthias Lenga

Generative adversarial networks (GANs) have shown remarkable success in generating realistic images and are increasingly used in medical imaging for image-to-image translation tasks.

Image-to-Image Translation Translation

Transfer Learning for Segmentation Problems: Choose the Right Encoder and Skip the Decoder

no code implementations29 Jul 2022 Jonas Dippel, Matthias Lenga, Thomas Goerttler, Klaus Obermayer, Johannes Höhne

In this work, we investigate the impact of transfer learning for segmentation problems, being pixel-wise classification problems that can be tackled with encoder-decoder architectures.

Segmentation Transfer Learning

Fused Audio Instance and Representation for Respiratory Disease Detection

no code implementations22 Apr 2022 Tuan Truong, Matthias Lenga, Antoine Serrurier, Sadegh Mohammadi

Our findings show that the use of self-attention to combine extracted features from cough, breath, and speech sounds leads to the best performance with an Area Under the Receiver Operating Characteristic Curve (AUC) score of 0. 8658, a sensitivity of 0. 8057, and a specificity of 0. 7958.

Specificity

How Transferable Are Self-supervised Features in Medical Image Classification Tasks?

no code implementations23 Aug 2021 Tuan Truong, Sadegh Mohammadi, Matthias Lenga

In addition, we introduce Dynamic Visual Meta-Embedding (DVME) as an end-to-end transfer learning approach that fuses pretrained embeddings from multiple models.

Image Classification Medical Image Classification +2

Multi-Resolution 3D Convolutional Neural Networks for Automatic Coronary Centerline Extraction in Cardiac CT Angiography Scans

no code implementations2 Oct 2020 Zohaib Salahuddin, Matthias Lenga, Hannes Nickisch

A similar multi-scale dual pathway 3D CNN is trained to identify coronary artery endpoints for terminating the tracking process.

Vessel Detection

Deep Learning Based Rib Centerline Extraction and Labeling

no code implementations19 Sep 2018 Matthias Lenga, Tobias Klinder, Christian Bürger, Jens von Berg, Astrid Franz, Cristian Lorenz

In this paper, we combine a deep learning-based rib detection with a dedicated centerline extraction algorithm applied to the detection result for the purpose of fast, robust and accurate rib centerline extraction and labeling from CT volumes.

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