Fig. 1. Blurred image sequence generated by Gaussian filter

Fig. 2. Normalized value of definition evaluation

Fig. 3. Imaging effect of three different cameras on same target scene

Fig. 4. Normalized value of definition evaluation

Fig. 5. Principle of automatic extraction of maximum image similar region

Fig. 6. Test results of maximum similar region in image sequence

Fig. 7. Image definition evaluation results based on similar region detection

Fig. 8. MTF solution and corresponding MTFA results

Fig. 9. The relationship between MTF, NEM (CTF) and MTFA

Fig. 10. Curves of function relationship

Fig. 11. Curves of function relationship

Fig. 12. Curves of relationship between stray light coefficient and MTF

Fig. 13. MTF test results of the second and third optical imaging systems (including meridian and sagittal directions)

Fig. 14. Star point image test results of optical imaging system

Fig. 15. Resolution test results of optical imaging system