Autoencoders for unsupervised anomaly segmentation in brain MR images: a comparative study

C Baur, S Denner, B Wiestler, N Navab… - Medical Image …, 2021 - Elsevier
Deep unsupervised representation learning has recently led to new approaches in the field
of Unsupervised Anomaly Detection (UAD) in brain MRI. The main principle behind these …

Anomaly detection in medical imaging-a mini review

ME Tschuchnig, M Gadermayr - International Data Science Conference, 2021 - Springer
The increasing digitization of medical imaging enables machine learning based
improvements in detecting, visualizing and segmenting lesions, easing the workload for …

[HTML][HTML] Unsupervised brain imaging 3D anomaly detection and segmentation with transformers

WHL Pinaya, PD Tudosiu, R Gray, G Rees… - Medical Image …, 2022 - Elsevier
Pathological brain appearances may be so heterogeneous as to be intelligible only as
anomalies, defined by their deviation from normality rather than any specific set of …

MADGAN: Unsupervised medical anomaly detection GAN using multiple adjacent brain MRI slice reconstruction

C Han, L Rundo, K Murao, T Noguchi, Y Shimahara… - BMC …, 2021 - Springer
Background Unsupervised learning can discover various unseen abnormalities, relying on
large-scale unannotated medical images of healthy subjects. Towards this, unsupervised …

Natural synthetic anomalies for self-supervised anomaly detection and localization

HM Schlüter, J Tan, B Hou, B Kainz - European Conference on Computer …, 2022 - Springer
We introduce a simple and intuitive self-supervision task, Natural Synthetic Anomalies
(NSA), for training an end-to-end model for anomaly detection and localization using only …

Label-free segmentation of COVID-19 lesions in lung CT

Q Yao, L Xiao, P Liu, SK Zhou - IEEE transactions on medical …, 2021 - ieeexplore.ieee.org
Scarcity of annotated images hampers the building of automated solution for reliable COVID-
19 diagnosis and evaluation from CT. To alleviate the burden of data annotation, we herein …

Anomaly detection for medical images using self-supervised and translation-consistent features

H Zhao, Y Li, N He, K Ma, L Fang, H Li… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
As the labeled anomalous medical images are usually difficult to acquire, especially for rare
diseases, the deep learning based methods, which heavily rely on the large amount of …

Denoising autoencoders for unsupervised anomaly detection in brain MRI

A Kascenas, N Pugeault… - … Conference on Medical …, 2022 - proceedings.mlr.press
Pathological brain lesions exhibit diverse appearance in brain images, making it difficult to
train supervised detection solutions due to the lack of comprehensive data and annotations …

What is healthy? generative counterfactual diffusion for lesion localization

P Sanchez, A Kascenas, X Liu, AQ O'Neil… - MICCAI Workshop on …, 2022 - Springer
Reducing the requirement for densely annotated masks in medical image segmentation is
important due to cost constraints. In this paper, we consider the problem of inferring pixel …

Semi-supervised anomaly detection with dual prototypes autoencoder for industrial surface inspection

J Liu, K Song, M Feng, Y Yan, Z Tu, L Zhu - Optics and Lasers in …, 2021 - Elsevier
Anomaly detection in the automated optical quality inspection is of great important for
guaranteeing the surface quality of industrial products. Most related methods are based on …