ZigGate3D: gated tri-branch spatial mixing for brain tumor segmentation
Accurate brain tumor segmentation from 3D multimodal MRI remains challenging due to structural heterogeneity and discontinuous tumor regions. We propose ZigGate3D, a 3D encoder–decoder network with a gated tri-branch spatial mixing (GTSM) module. GTSM captures long-range dependencies via forward and reverse zigzag scan...