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researcher

R. Opfer

11 papers hereh-index 191.3k citations82 works total

Matching runs newest-first, so older work may not be attached to this profile yet.

author position
  • middle author11

Across the 11 of 11 papers where every author was matched, so the position is known.

fields
  • eess.IV8
  • cs.CV3

identity via Semantic Scholar / OpenAlex

activity
20202024
most citedGuided Reconstruction with Conditioned Diffusion Models for Unsupervised Anomaly Detection in Brain MRIs

21 citations · 49 across the 11 of their papers we have counts for

collaborators
Showing 2024Show all

3 papers · 1 filter

cs.CV2024

CTARR: A fast and robust method for identifying anatomical regions on CT images via atlas registration

Thomas Buddenkotte, Roland Opfer, Julia Krüger +2

Medical image analysis tasks often focus on regions or structures located in a particular location within the patient's body. Often large parts of the image may not be of interest…

eess.IV2024

Leveraging the Mahalanobis Distance to enhance Unsupervised Brain MRI Anomaly Detection

Finn Behrendt, Debayan Bhattacharya, Robin Mieling +4

Unsupervised Anomaly Detection (UAD) methods rely on healthy data distributions to identify anomalies as outliers. In brain MRI, a common approach is reconstruction-based UAD, wher…

eess.IV2024

Diffusion Models with Ensembled Structure-Based Anomaly Scoring for Unsupervised Anomaly Detection

Finn Behrendt, Debayan Bhattacharya, Lennart Maack +4

Supervised deep learning techniques show promise in medical image analysis. However, they require comprehensive annotated data sets, which poses challenges, particularly for rare d…

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