Fig. 1. Data flow of star removal algorithm

Fig. 2. Comparison between original and background image

Fig. 3. Comparison of extraction effects

Fig. 4. Bounding rectangle of target

Fig. 5. Comparison between noise and star

Fig. 6. Flowchart of single frame detection

Fig. 7. Flowchart of multi frame detection

Fig. 8. Schematic diagram of replacement principle

Fig. 9. Experimental 500 mm all day time detection optical telescope

Fig. 10. Stars removed effect

Fig. 11. Comparison of multi-frame algorithm effects

Fig. 12. Remove failed situation

Fig. 13. Algorithm time consumption statistics