Fig. 1. Schematic diagram of distributed aperture detection imaging system

Fig. 2. Physical image of distributed aperture detection imaging system

Fig. 3. Flow chart of image super-resolution reconstruction

Fig. 4. Schematic diagram of slope and distance consistency

Fig. 5. Schematic diagram of FSRCNN structure^[17]

Fig. 6. Flow chart of different defect detection

Fig. 7. Flow chart of adaptive NLM filtering algorithm for smoothing parameters

Fig. 8. Image filtering and difference results

Fig. 9. Flow chart of adaptive binarization

Fig. 10. Adaptive binarization parameters

Fig. 11. Image binarization results

Fig. 12. Detection results comparison of different algorithms in different groups experiments

Fig. 13. Comparison line graph of different defects detection under different algorithms