Search Results for author: Tobias Lasser

Found 18 papers, 4 papers with code

Single-Shared Network with Prior-Inspired Loss for Parameter-Efficient Multi-Modal Imaging Skin Lesion Classification

no code implementations28 Mar 2024 Peng Tang, Tobias Lasser

Firstly, unlike current methods that usually employ two individual models for for clinical and dermoscopy modalities, we verified that multimodal feature can be learned by sharing the parameters of encoder while leaving the individual modal-specific classifiers.

Lesion Classification Skin Lesion Classification

Sparsity-based background removal for STORM super-resolution images

1 code implementation15 Jan 2024 Patris Valera, Josué Page Vizcaíno, Tobias Lasser

We introduce a sparsity-based background removal method by adapting a neural network (SLNet) from a different microscopy domain.

Super-Resolution

SR-R$^2$KAC: Improving Single Image Defocus Deblurring

no code implementations30 Jul 2023 Peng Tang, Zhiqiang Xu, Pengfei Wei, Xiaobin Hu, Peilin Zhao, Xin Cao, Chunlai Zhou, Tobias Lasser

To further alleviate the contingent effect of recursive stacking, i. e., ringing artifacts, we add identity shortcuts between atrous convolutions to simulate residual deconvolutions.

Deblurring Image Defocus Deblurring

Improving image quality of sparse-view lung tumor CT images with U-Net

no code implementations28 Jul 2023 Annika Ries, Tina Dorosti, Johannes Thalhammer, Daniel Sasse, Andreas Sauter, Felix Meurer, Ashley Benne, Tobias Lasser, Franz Pfeiffer, Florian Schaff, Daniela Pfeiffer

Six corresponding sparse-view CT data subsets at varying levels of undersampling were reconstructed from sinograms using filtered backprojection with 16, 32, 64, 128, 256, and 512 views.

Computed Tomography (CT)

Graph-Ensemble Learning Model for Multi-label Skin Lesion Classification using Dermoscopy and Clinical Images

no code implementations4 Jul 2023 Peng Tang, Yang Nan, Tobias Lasser

However, most methods only focus on designing a better module for multi-modal data fusion; few methods explore utilizing the label correlation between SPC and skin disease for performance improvement.

Attribute Classification +4

Higher Chest X-ray Resolution Improves Classification Performance

no code implementations9 Jun 2023 Alessandro Wollek, Sardi Hyska, Bastian Sabel, Michael Ingrisch, Tobias Lasser

Deep learning models for image classification are often trained at a resolution of 224 x 224 pixels for historical and efficiency reasons.

Classification Image Classification

WindowNet: Learnable Windows for Chest X-ray Classification

no code implementations9 Jun 2023 Alessandro Wollek, Sardi Hyska, Bastian Sabel, Michael Ingrisch, Tobias Lasser

Finally, we propose and evaluate WindowNet, a model that learns optimal window settings, and show that it significantly improves performance compared to the baseline model without windowing.

Classification

Automated Labeling of German Chest X-Ray Radiology Reports using Deep Learning

no code implementations9 Jun 2023 Alessandro Wollek, Philip Haitzer, Thomas Sedlmeyr, Sardi Hyska, Johannes Rueckel, Bastian Sabel, Michael Ingrisch, Tobias Lasser

In this work, we explore the potential of weak supervision of a deep learning-based label prediction model, using a rule-based labeler.

German CheXpert Chest X-ray Radiology Report Labeler

no code implementations5 Jun 2023 Alessandro Wollek, Sardi Hyska, Thomas Sedlmeyr, Philip Haitzer, Johannes Rueckel, Bastian O. Sabel, Michael Ingrisch, Tobias Lasser

This study aimed to develop an algorithm to automatically extract annotations for chest X-ray classification models from German thoracic radiology reports.

Improving Automated Hemorrhage Detection in Sparse-view Computed Tomography via Deep Convolutional Neural Network based Artifact Reduction

no code implementations16 Mar 2023 Johannes Thalhammer, Manuel Schultheiss, Tina Dorosti, Tobias Lasser, Franz Pfeiffer, Daniela Pfeiffer, Florian Schaff

Purpose: Sparse-view computed tomography (CT) is an effective way to reduce dose by lowering the total number of views acquired, albeit at the expense of image quality, which, in turn, can impact the ability to detect diseases.

Computed Tomography (CT)

Attention-based Saliency Maps Improve Interpretability of Pneumothorax Classification

1 code implementation3 Mar 2023 Alessandro Wollek, Robert Graf, Saša Čečatka, Nicola Fink, Theresa Willem, Bastian O. Sabel, Tobias Lasser

Conclusion: ViTs performed similarly to CNNs in CXR classification, and their attention-based saliency maps were more useful to radiologists and outperformed GradCAM.

Classification Lung Disease Classification

A knee cannot have lung disease: out-of-distribution detection with in-distribution voting using the medical example of chest X-ray classification

1 code implementation1 Aug 2022 Alessandro Wollek, Theresa Willem, Michael Ingrisch, Bastian Sabel, Tobias Lasser

The proposed IDV approach trained on ID (chest X-ray 14) and OOD data (IRMA and ImageNet) achieved, on average, 0. 999 OOD AUC across the three data sets, surpassing all other OOD detection methods.

Classification Multi-Label Classification +2

WNet: A data-driven dual-domain denoising model for sparse-view computed tomography with a trainable reconstruction layer

no code implementations1 Jul 2022 Theodor Cheslerean-Boghiu, Felix C. Hofmann, Manuel Schultheiß, Franz Pfeiffer, Daniela Pfeiffer, Tobias Lasser

We investigate the performance of the network on sparse-view chest CT scans, and we highlight the added benefit of having a trainable reconstruction layer over the more conventional fixed ones.

Denoising Tomographic Reconstructions

A Gentle Introduction to Deep Learning in Medical Image Processing

no code implementations12 Oct 2018 Andreas Maier, Christopher Syben, Tobias Lasser, Christian Riess

This paper tries to give a gentle introduction to deep learning in medical image processing, proceeding from theoretical foundations to applications.

Image Registration Image Segmentation +1

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