Fig. 1. Calibration experiment site

Fig. 2. High and low gain light response curve

Fig. 3. HDR hardware synthesis diagram

Fig. 4. Schematic diagram of HDR fusion for large-format camera

Fig. 5. Overall design of sCMOS camera system

Fig. 6. Alternate frames transmit data waveforms

Fig. 7. Physical image of camera system

Fig. 8. Light response curve of HDR

Fig. 9. High- and low-gain images and their grayscale 3D graphs. (a)(c) High-gain image; (b)(d) low-gain image

Fig. 10. HDR algorithm image and grayscale 3D graph. (a) HDR algorithm image; (b) grayscale 3D graph

Fig. 11. Three-segment curve fitting algorithm

Fig. 12. Information entropy block fusion algorithm

Fig. 13. Two application methods of HDR

Fig. 14. Low-light scene HDR fusion effect. (a) High-gain image; (b) low-gain image; (c) high-gain-dominant HDR image; (d) low-gain-dominant HDR image

Fig. 15. High-light scene HDR fusion effect. (a) High-gain image; (b) low-gain image; (c) high-gain-dominant HDR image; (d) low-gain-dominant HDR image