Siqi Liu, Feihong Yu. Smooth Automatic Exposure Algorithm with Adaptive Damping for CMOS Camera[J]. Laser & Optoelectronics Progress, 2024, 61(22): 2211003
- Laser & Optoelectronics Progress
- Vol. 61, Issue 22, 2211003 (2024)
Fig. 1. Diagram of proportional coefficient method
Fig. 2. Diagram of local linear fitting method
Fig. 3. Exposure time variation after applying damping
Fig. 4. Flow chart of status I
Fig. 5. Overall flowchart of status II-V
Fig. 6. Flow chart of algorithm 1
Fig. 7. Flow chart of status II
Fig. 8. Possible combinations of exposure in state II
Fig. 9. Flow chart of algorithm 2
Fig. 10. Flow chart of status III
Fig. 11. Flow chart of status IV
Fig. 12. Flow chart of status V
Fig. 13. Experimental images of the automatic exposure algorithm. (a) Experimental images of biological slices under a microscope; (b) OLED screen under a stereomicroscope; (c) (d) exposure results when the ROI is placed in different positions
Fig. 14. Grayscale histogram of Fig. 13 (c)，(d)
Fig. 15. The curves of exposure time variation over time. (a) Introducing adaptive damping; (b) not introducing adaptive damping
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Table 1. Convergence timetable of experiments 1‒5
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Table 2. Convergence time of adjusting of exposure target 6 times
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