Fig. 1. Overall structure diagram of Fast-SCNN and improved Fast-SCNN

Fig. 2. Schematic of bottleneck with different step distances

Fig. 3. Comparison of two multi-scale feature fusion methods

Fig. 4. Schematic of position attention and LPAB insertion method

Fig. 5. Schematic of lightweight position attention module

Fig. 6. Visualization of attention gate response images

Fig. 7. Grad-CAM visualization results for SPP and LFAP

Fig. 8. Comparison results of different up-sampling methods

Fig. 9. Comparison results of different algorithms