Fig. 1. Framework of overall network

Fig. 2. Structure schematic of MR module

Fig. 3. Structure schematic of SC-UNet

Fig. 4. Structure schematics. (a) Residual convolution module; (b) convolution module

Fig. 5. Structure schematic of Transformer module.

Fig. 6. Four modal MRI images and physician-labeled brain tumor image (ground truth) of a patient

Fig. 7. Ablation experimental results with different module settings

Fig. 8. Visualization results of two-dimensional segmentation of different models (green: edema; yellow: enhanced tumor; red: necrotic and non-enhancing tumor; green+yellow+red: whole tumor; yellow+red: tumor core)

Fig. 9. Visualization results of three-dimensional segmentation of different models (green: edema; yellow: enhanced tumor; red: necrotic and non-enhancing tumor; green+yellow+red: whole tumor; yellow+red: tumor core)

Fig. 10. Boxplot showing the segmentation results of different models on the three regions