Due to different working principles, infrared imaging technology and low-light imaging technology have their own advantages and disadvantages.
1. The radiation of the system and the background produces a scene image, so the infrared thermal imaging system can work 24 hours a day.
2. Mechanical technology Many infrared thermal imaging systems have integrated software systems to realize functions such as image management and image operation, and the image quality is greatly improved.
3. Infrared radiation has a stronger ability to penetrate fog, haze, rain and snow than low-light optical radiation, so the infrared imaging system has a longer operating distance.
4. Infrared thermal imaging can detect hidden thermal targets through camouflage, and even identify the contours of heat traces left by aircraft and tanks that have just left.
5. The low-light night vision device has clear image, small size, light weight, low price, convenient use and maintenance, and is not easy to be detected and interfered by electronic devices, so it has a wide range of applications.
6. The response speed of the low-light night vision device is fast, and high-speed photography can be achieved by using the photocathode tube.
7. Generally, the low-light imaging surface is a continuous target surface, and the resolution during the period is very high, and currently the highest is 90lp/ⅡHn. Equivalent to more than 1600 TV lines.
8. The low-light video response expands to the short-wave range. The detection and imaging of high-energy ions, X-rays, ultraviolet rays, and blue-green scenes are basically based on the principles of low-light imaging technology such as external photoelectric conversion, enhancement, processing, and display.
From the perspective of discipline and technology development, infrared technology has certain advantages. The existence of visible light is conditional, and any object is an infrared source and is constantly radiating infrared rays, so the application of infrared technology will be everywhere. At present, in the aspect of near and far night vision, low-light night vision devices still occupy a dominant position due to their low price and good image quality. With the reduction in the price of infrared devices, infrared thermal imaging cameras will certainly make a difference. In terms of long-distance night vision, the role of thermal imaging cameras is more prominent.