Scintillation Noise Test System of Image Intensifier Based on CMOS Image Sensor

Fig. 5. Thermal diagrams of discrete coefficient under different illuminance . (a) Illuminance is 5×10^-7 lx; (b) illuminance is 7×10^-6 lx;(c) illuminance is 1.2×10^-6 lx; (d) illuminance is 2.8×10^-6 lx; (e) illuminance is 6.37×10^-6 lx; (f) illuminance is 1.34×10^-5 lx

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Fig. 6. Discrete coefficient thermal maps of different image intensifiers

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Table 1. Parameters of image intensifier to be measured
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Table 1. Parameters of image intensifier to be measured
Model Gain Equivalent background illumination /（10^-6 lx） SNR
Ⅰ 10118 0.3 23.4
Ⅱ 9879 0.21 28.6
Ⅲ 14263 0.15 25.7

Table 2. The average amount of highlight noise obtained by image intensifier when the threshold value of binarization is 100
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Table 2. The average amount of highlight noise obtained by image intensifier when the threshold value of binarization is 100
Model 1 2 3 4 5 Mean
Ⅰ 5.16 5.22 5.08 5.17 5.25 5.18
Ⅱ 1.48 1.42 1.36 1.39 1.39 1.40
Ⅲ 0.84 0.86 0.88 0.88 0.83 0.86

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Minjie Yang, Yunsheng Qian, Yiyun Yan, Sheng Wu. Scintillation Noise Test System of Image Intensifier Based on CMOS Image Sensor[J]. Laser & Optoelectronics Progress, 2023, 60(2): 0222001

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