Fig. 9
From: Enhanced brain tumour segmentation using a hybrid dual encoder–decoder model in federated learning
(a) Brain tumour segmentation visualizations on the Mateuszbuda LGG-MRI dataset. Comparative results for identical brain slice across U-Net, UNet + + , ResUNet, proposed model. (b) Boundary-level visual comparison—Red contours denote predicted tumour boundaries; green contours show ground truth segmentation.
