Extended Data Fig. 1: Cleaning.
From: Federated disentangled representation learning for unsupervised brain anomaly detection
The top row shows original healthy samples from OASIS, ADNI-S, and ADNI-P and the bottom row shows the cleaned images. Given the advanced age of the healthy participants in the federated training, some hyperintensities, for example, because of prevalence of small vessel disease, may occur and be considered normal. We therefore clean the ground truth used for the reconstruction by in-painting over these hyperintense regions ( > 98th percentile) with the mean intensity value of the brain slice (50th percentile).
