Fig. 1. Structural diagram of detection system

Fig. 2. Workflow chart of system

Fig. 3. Structural diagram of SSD network

Fig. 4. Structure of full convolution segmentation network

Fig. 5. Process diagram of filtering out invalid targets

Fig. 6. Training process of system

Fig. 7. Airport detection samples

Fig. 8. Detection samples for unshaded aircrafts

Fig. 9. Detection samples for shaded aircrafts

Fig. 10. Contrast between (a) artificial segmentation image and (b) original image

Fig. 11. Sketch of fIoU definition

Fig. 12. (a) Training accuracy and (b) loss parameter versus iteration number in classification training process on VGGNet

Fig. 13. Aircraft detection results

Fig. 14. Airport segmentation results

Fig. 15. Screening results from aircraft detection