Fig. 1. Schematic of EBAPS imaging^[20]

Fig. 2. Ideal total noise PTC curve for CMOS/CCD

Fig. 3. Schematic of experimental setup

Fig. 4. Schematic of physical object and structural particularity of EBAPS

Fig. 5. Different regions of EBAPS image (solid green line box indicates the dark pixel area, and solid red line box indicates the effective signal area)

Fig. 6. Signal mean versus standard deviation for difference image

Fig. 7. Histogram distribution of image with different mean values. (a) Mean value is 93; (b) mean value is 166; (c) mean value is 466; (d) mean value is 749; (e) mean value is 2223; (f) mean value is 3283

Fig. 8. Difference image of adjacent frames (enhanced image for valid show)

Fig. 9. Flow chart of AWT-PDN algorithm

Fig. 10. Comparison of single frame images and mean values of 50 images under different illuminances. (a) Single frame images; (b) 50 images

Fig. 11. Experiment results of denoising methods for scene 1 under different illuminances. (a) 1×10^-1 lx; (b) 5×10^-2 lx; (c) 1×10^-2 lx; (d) 5×10^-3 lx

Fig. 12. Experiment results of denoising methods for scene 2 under different illuminances. (a) 1×10-1lx; (b) 5×10-2lx; (c) 1×10-2lx; (d) 5×10-3lx