Search Results for author: Sontje Ihler

Found 11 papers, 5 papers with code

A Comprehensive Study of Modern Architectures and Regularization Approaches on CheXpert5000

no code implementations13 Feb 2023 Sontje Ihler, Felix Kuhnke, Svenja Spindeldreier

Computer aided diagnosis (CAD) has gained an increased amount of attention in the general research community over the last years as an example of a typical limited data application - with experiments on labeled 100k-200k datasets.

Image Classification Medical Image Classification

Recalibration of Aleatoric and Epistemic Regression Uncertainty in Medical Imaging

1 code implementation26 Apr 2021 Max-Heinrich Laves, Sontje Ihler, Jacob F. Fast, Lüder A. Kahrs, Tobias Ortmaier

We apply estimation of both aleatoric and epistemic uncertainty by variational Bayesian inference with Monte Carlo dropout to regression tasks and show that predictive uncertainty is systematically underestimated.

Bayesian Inference regression

Patient-Specific Domain Adaptation for Fast Optical Flow Based on Teacher-Student Knowledge Transfer

no code implementations9 Jul 2020 Sontje Ihler, Max-Heinrich Laves, Tobias Ortmaier

Using flow estimations from teacher model FlowNet2 we specialize a fast student model FlowNet2S on the patient-specific domain.

Domain Adaptation Motion Estimation +2

Calibration of Model Uncertainty for Dropout Variational Inference

no code implementations20 Jun 2020 Max-Heinrich Laves, Sontje Ihler, Karl-Philipp Kortmann, Tobias Ortmaier

The model uncertainty obtained by variational Bayesian inference with Monte Carlo dropout is prone to miscalibration.

Bayesian Inference Variational Inference

Deformable Medical Image Registration Using a Randomly-Initialized CNN as Regularization Prior

no code implementations2 Aug 2019 Max-Heinrich Laves, Sontje Ihler, Tobias Ortmaier

Our approach uses the idea of deep image priors to combine convolutional networks with conventional registration methods based on manually engineered priors.

Deformable Medical Image Registration Image Registration +1

Uncertainty Quantification in Computer-Aided Diagnosis: Make Your Model say "I don't know" for Ambiguous Cases

1 code implementation2 Aug 2019 Max-Heinrich Laves, Sontje Ihler, Tobias Ortmaier

We evaluate two different methods for the integration of prediction uncertainty into diagnostic image classifiers to increase patient safety in deep learning.

Uncertainty Quantification

Semantic denoising autoencoders for retinal optical coherence tomography

no code implementations23 Mar 2019 Max-Heinrich Laves, Sontje Ihler, Lüder Alexander Kahrs, Tobias Ortmaier

Noise in speckle-prone optical coherence tomography tends to obfuscate important details necessary for medical diagnosis.

Denoising General Classification +1

Retinal OCT disease classification with variational autoencoder regularization

1 code implementation23 Mar 2019 Max-Heinrich Laves, Sontje Ihler, Lüder A. Kahrs, Tobias Ortmaier

A recent study established a diagnostic tool based on convolutional neural networks (CNN), which was trained on a large database of retinal OCT images.

Classification Clustering +2

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