activity
20212026
most citedMask, Stitch, and Re-Sample: Enhancing Robustness and Generalizability in Anomaly Detection through Automatic Diffusion Models

11 citations · 24 across the 22 of their papers we have counts for

collaborators

26 papers

cs.LG2026

The Value of System 1 Models in Medicine

Xiufeng Yang, Konstantinos Vrettos, Zeineb Ben Chaaben +17

Many clinical decisions are a choice among a few fixed options, taken quickly and in large numbers. Such decisions also need an uncertainty estimate to know when to defer to a clin…

cs.AI2026

Autonomous Structuring of Radiology Reports Across Modalities at Archive Scale Using an Open-Weight Large Language Model

Friedrich Puttkammer, Fabian Drexel, Marlene Fritzsche +19

Purpose: To develop and evaluate an open-weight large language model (LLM) pipeline that converts an entire archive of free-text radiology reports into structured reports without h…

cs.CV2026

RadPRISM: Schema-stratified radiology-report supervision for concept-disentangled image representations and visual grounding

Fabian Drexel, Marlene Fritzsche, Era Stambollxhiu +15

Vision-language pretraining learns rich medical image representations from radiology reports, but previous model variants commonly operate within a single shared embedding space, s…

cs.CV2026

Wasserstein-Aligned Localisation for VLM-Based Distributional OOD Detection in Medical Imaging

Bernhard Kainz, Johanna P Mueller, Matthew Baugh +1

Zero-shot anomaly localisation via vision-language models (VLMs) offers a compelling approach for rare pathology detection, yet its performance is fundamentally limited by the abse…

cs.AI2026

Measuring and Aligning Abstraction in Vision-Language Models with Medical Taxonomies

Ben Schaper, Maxime Di Folco, Bernhard Kainz +2

Vision-Language Models show strong zero-shot performance for chest X-ray classification, but standard flat metrics fail to distinguish between clinically minor and severe errors. T…

cs.CV2026

LocBAM: Advancing 3D Patch-Based Image Segmentation by Integrating Location Contex

Donnate Hooft, Stefan M. Fischer, Cosmin Bercea +2

Patch-based methods are widely used in 3D medical image segmentation to address memory constraints in processing high-resolution volumetric data. However, these approaches often ne…

eess.IV2025

TomoGraphView: 3D Medical Image Classification with Omnidirectional Slice Representations and Graph Neural Networks

Johannes Kiechle, Stefan M. Fischer, Daniel M. Lang +5

The sharp rise in medical tomography examinations has created a demand for automated systems that can reliably extract informative features for downstream tasks such as tumor chara…

cs.CV2025

Influence of Classification Task and Distribution Shift Type on OOD Detection in Fetal Ultrasound

Chun Kit Wong, Anders N. Christensen, Cosmin I. Bercea +3

Reliable out-of-distribution (OOD) detection is important for safe deployment of deep learning models in fetal ultrasound amidst heterogeneous image characteristics and clinical se…

cs.CV2025

Knowledge to Sight: Reasoning over Visual Attributes via Knowledge Decomposition for Abnormality Grounding

Jun Li, Che Liu, Wenjia Bai +4

In this work, we address the problem of grounding abnormalities in medical images, where the goal is to localize clinical findings based on textual descriptions. While generalist V…

cs.CV2025

Semantic Alignment of Unimodal Medical Text and Vision Representations

Maxime Di Folco, Emily Chan, Marta Hasny +2

General-purpose AI models, particularly those designed for text and vision, demonstrate impressive versatility across a wide range of deep-learning tasks. However, they often under…

cs.CV2025

Enhancing Abnormality Grounding for Vision Language Models with Knowledge Descriptions

Jun Li, Che Liu, Wenjia Bai +3

Visual Language Models (VLMs) have demonstrated impressive capabilities in visual grounding tasks. However, their effectiveness in the medical domain, particularly for abnormality…

cs.LG2024

Selective Test-Time Adaptation for Unsupervised Anomaly Detection using Neural Implicit Representations

Sameer Ambekar, Julia A. Schnabel, Cosmin I. Bercea

Deep learning models in medical imaging often encounter challenges when adapting to new clinical settings unseen during training. Test-time adaptation offers a promising approach t…

cs.CV2024★ 1 cited

FMBench: Benchmarking Fairness in Multimodal Large Language Models on Medical Tasks

Peiran Wu, Che Liu, Canyu Chen +3

Advancements in Multimodal Large Language Models (MLLMs) have significantly improved medical task performance, such as Visual Question Answering (VQA) and Report Generation (RG). H…

eess.IV2024

Unsupervised Analysis of Alzheimer's Disease Signatures using 3D Deformable Autoencoders

Mehmet Yigit Avci, Emily Chan, Veronika Zimmer +4

With the increasing incidence of neurodegenerative diseases such as Alzheimer's Disease (AD), there is a need for further research that enhances detection and monitoring of the dis…

eess.IV2024

Interpretable Representation Learning of Cardiac MRI via Attribute Regularization

Maxime Di Folco, Cosmin I. Bercea, Emily Chan +1

Interpretability is essential in medical imaging to ensure that clinicians can comprehend and trust artificial intelligence models. Several approaches have been recently considered…

cs.CV2024

Language Models Meet Anomaly Detection for Better Interpretability and Generalizability

Jun Li, Su Hwan Kim, Philip Müller +5

This research explores the integration of language models and unsupervised anomaly detection in medical imaging, addressing two key questions: (1) Can language models enhance the i…

eess.IV2024★ 2 cited

Diffusion Models with Implicit Guidance for Medical Anomaly Detection

Cosmin I. Bercea, Benedikt Wiestler, Daniel Rueckert +1

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

eess.IV2024★ 1 cited

Towards Universal Unsupervised Anomaly Detection in Medical Imaging

Cosmin I. Bercea, Benedikt Wiestler, Daniel Rueckert +1

The increasing complexity of medical imaging data underscores the need for advanced anomaly detection methods to automatically identify diverse pathologies. Current methods face ch…

eess.IV2023

Attribute Regularized Soft Introspective Variational Autoencoder for Interpretable Cardiac Disease Classification

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. In this paper, we propose a novel interpretable…

eess.IV2023

Bias in Unsupervised Anomaly Detection in Brain MRI

Cosmin I. Bercea, Esther Puyol-Antón, Benedikt Wiestler +3

Unsupervised anomaly detection methods offer a promising and flexible alternative to supervised approaches, holding the potential to revolutionize medical scan analysis and enhance…

eess.IV2023★ 1 cited

Attribute Regularized Soft Introspective VAE: Towards Cardiac Attribute Regularization Through MRI Domains

Maxime Di Folco, Cosmin Bercea, Julia A. Schnabel

Deep generative models have emerged as influential instruments for data generation and manipulation. Enhancing the controllability of these models by selectively modifying data att…

cs.CV2023★ 11 cited

Mask, Stitch, and Re-Sample: Enhancing Robustness and Generalizability in Anomaly Detection through Automatic Diffusion Models

Cosmin I. Bercea, Michael Neumayr, Daniel Rueckert +1

The introduction of diffusion models in anomaly detection has paved the way for more effective and accurate image reconstruction in pathologies. However, the current limitations in…

eess.IV2023

Reversing the Abnormal: Pseudo-Healthy Generative Networks for Anomaly Detection

Cosmin I Bercea, Benedikt Wiestler, Daniel Rueckert +1

Early and accurate disease detection is crucial for patient management and successful treatment outcomes. However, the automatic identification of anomalies in medical images can b…

eess.IV2023

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

Daniel M. Lang, Eli Schwartz, Cosmin I. Bercea +2

Self-supervised models allow (pre-)training on unlabeled data and therefore have the potential to overcome the need for large annotated cohorts. One leading self-supervised model i…