Search Results for author: Cosmin I. Bercea

Found 11 papers, 5 papers with code

SHAMANN: Shared Memory Augmented Neural Networks

no code implementations Cosmin I. Bercea, Olivier Pauly, Andreas K. Maier, Florin C. Ghesu

Current state-of-the-art methods for semantic segmentation use deep neural networks to learn the segmentation mask from the input image signal as an image-to-image mapping.

Segmentation Semantic Segmentation

Multi-Image Visual Question Answering for Unsupervised Anomaly Detection

no code implementations11 Apr 2024 Jun Li, Cosmin I. Bercea, Philip Müller, Lina Felsner, Suhwan Kim, Daniel Rueckert, Benedikt Wiestler, Julia A. Schnabel

To the best of our knowledge, we are the first to leverage a language model for unsupervised anomaly detection, for which we construct a dataset with different questions and answers.

Language Modelling Question Answering +2

Diffusion Models with Implicit Guidance for Medical Anomaly Detection

1 code implementation13 Mar 2024 Cosmin I. Bercea, Benedikt Wiestler, Daniel Rueckert, Julia A. Schnabel

Diffusion models have advanced unsupervised anomaly detection by improving the transformation of pathological images into pseudo-healthy equivalents.

Specificity Unsupervised Anomaly Detection

Towards Universal Unsupervised Anomaly Detection in Medical Imaging

1 code implementation19 Jan 2024 Cosmin I. Bercea, Benedikt Wiestler, Daniel Rueckert, Julia A. Schnabel

Our unsupervised anomaly detection approach may enhance diagnostic accuracy in medical imaging by identifying a broader range of unknown pathologies.

Unsupervised Anomaly Detection

Attribute Regularized Soft Introspective Variational Autoencoder for Interpretable Cardiac Disease Classification

1 code implementation14 Dec 2023 Maxime Di Folco, Cosmin I. Bercea, Julia A. Schnabel

Interpretability is essential in medical imaging to ensure that clinicians can comprehend and trust artificial intelligence models.

Attribute

3D Masked Autoencoders with Application to Anomaly Detection in Non-Contrast Enhanced Breast MRI

no code implementations10 Mar 2023 Daniel M. Lang, Eli Schwartz, Cosmin I. Bercea, Raja Giryes, Julia A. Schnabel

This new model, coined masked autoencoder for medical imaging (MAEMI) is trained on two non-contrast enhanced MRI sequences, aiming at lesion detection without the need for intravenous injection of contrast media and temporal image acquisition.

Anomaly Detection Lesion Detection

What do we learn? Debunking the Myth of Unsupervised Outlier Detection

no code implementations8 Jun 2022 Cosmin I. Bercea, Daniel Rueckert, Julia A. Schnabel

We have found that state-of-the-art (SOTA) AEs are either unable to constrain the latent manifold and allow reconstruction of abnormal patterns, or they are failing to accurately restore the inputs from their latent distribution, resulting in blurred or misaligned reconstructions.

Outlier Detection Out of Distribution (OOD) Detection

FedDis: Disentangled Federated Learning for Unsupervised Brain Pathology Segmentation

no code implementations5 Mar 2021 Cosmin I. Bercea, Benedikt Wiestler, Daniel Rueckert, Shadi Albarqouni

Further, we illustrate that FedDis learns a shape embedding that is orthogonal to the appearance and consistent under different intensity augmentations.

Anatomy Anomaly Detection +3

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