Haili Hu, Lei He, Yong Zhang, Zhen Yang, Xinmin Guo, Jianlong Zhang. Imaging experiments for weak small target in low-light-level background[J]. Infrared and Laser Engineering, 2020, 49(9): 20190569

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- Infrared and Laser Engineering
- Vol. 49, Issue 9, 20190569 (2020)

Fig. 1. Schematic diagram of laser active illuminated imaging

Fig. 2. Observation image of visible light camera at 1 km (time 17:00)

Fig. 3. Observation image of visible light camera at 1 km (time 19:00)

Fig. 4. Observation image of night vision system at 1 km (normal mode, time 19:00)

Fig. 5. Observation image of night vision system at 0.5 km (high gain, time 20:00)

Fig. 6. Physical picture of long wave infrared imaging system

Fig. 7. Acquired image of long wave infrared system (time 18:00)

Fig. 8. Acquired image of laser active illuminated system at 1 km (time 20:40)

Fig. 9. Local enlarged image of night vision system at 0.5 km (time 20:40)

Fig. 10. Relationship between number of target pixels and time

Fig. 11. Local enlarged image of laser active illuminated system at 1.6 km (time 20:50)

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