Infrared imaging apparatus and nonuniformity processing method thereof

Abstract

The invention discloses an infrared imaging apparatus and a nonuniformity processing method thereof and belongs to the infrared imaging technology field. The apparatus comprises an infrared detector signal processing module (M1), an infrared detector switching module1 (M2), an infrared detector switching module2 (M3), an infrared imaging apparatus shell fixing structure module (M4) and an infrared imaging apparatus optical lens fixing structure module (M5). The nonuniformity processing method based on the infrared imaging apparatus comprises hardware circuit correction, and single point and two-point calibration adaption correction processing methods. In the invention, a single-chip FPGA is used to realize infrared focal plane array independence imaging and fusion display of two paths of different wave bands or a same wave band; a modular design architecture is used; according to different detection distances, an infrared optical lens is replaced; advantages that a system integration level is high, the architecture is simple and flexible, processing real-time performance is high, the size is small, system reliability is high and so on are possessed; a software and hardware cooperation nonuniformity correction capability is possessed; and a correction effect is good and an adaptive correction capability is possessed.

Description

[0001] Technical field: [0002] The invention relates to an infrared imaging device and a non-uniformity processing method thereof, which belong to the technical field of infrared thermal imaging. Background technique [0003] At present, the infrared imaging device is the main component of the photoelectric detection system and the main means to realize the night vision capability. It is widely used in many fields such as military and civilian. Imaging fusion has become an important development direction of infrared imaging devices. However, the existing infrared imaging devices generally can only realize single-channel infrared imaging, and two independent infrared imaging devices are required to realize two-channel infrared imaging of the same band or different bands, which has the disadvantages of large volume power consumption, complex system architecture, and poor real-time performance. , The price is high, and it cannot meet the application requirements of real-time a...

AI Technical Summary

Problems solved by technology

However, the existing infrared imaging devices generally can only realize single-channel infrared imaging, and two independent infrared imaging devices are required to realize two-channel infrared imaging of the same band or different bands, which has the disadvantages of large volume power consumption, complex system architecture, and poor real-time performance. , The price is high, and it cannot meet the application requirements of real-time and image fusion display for multi-channel infrared imaging of the same band or different bands

Moreover, when the general infrared focal plane detector changes with the working time or ambient temperature, the non-uniformity of the focal plane array also drifts, and the infrared image correction effect will gradually deteriorate, which cannot meet the requirements of high-quality infrared imaging.

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