Multi-point correction method and system for infrared focal plane

Abstract

The invention belongs to the technical field of image processing, and particularly relates to a multi-point correction method for an infrared focal plane. The method comprises steps as follows: step 1, an infrared focal plane detector acquires images of different temperature black bodies at the working temperature in every other 5 DEG C and uses the images as background images; step 2, a shutter is started, a related parameter of a shutter image is acquired, and a shutter correction parameter is acquired with the following formula shown in the specification according to the background images, wherein delta O is the shutter correction parameter, the related parameter of the shutter image comprises the mean value Xs of a shutter image Xs and the shutter image, Bi is the i background image, Bi is the mean value of the background images, Ks is a gain correction parameter corresponding to the shutter image, and Ks is the mean value of the Ks; step 3, according to the shutter correction parameter delta O, a gain correction parameter K and a bias correction parameter Bj which correspond to an object image are introduced into the following formula shown in the specification for two-point correction, and a corrected image Y is calculated, wherein X is the to-be-corrected image, Y is the corrected image, delta O is the shutter correction parameter, Bj is the j background image, and K is the gain correction image.

Description

technical field [0001] The invention belongs to the technical field of image processing, and in particular relates to a method and system for multi-point correction of an infrared focal plane. Background technique [0002] Infrared focal plane array imaging system has become the development trend of infrared thermal imaging technology due to its advantages of high sensitivity, small size, compact structure, long range, good anti-interference, strong ability to penetrate smoke and haze, and can work around the clock. The staring infrared focal plane array has become the mainstream detection device for the development of future infrared thermal imaging systems. [0003] Based on these excellent characteristics of the infrared imaging system, it has been widely used in various military (such as early warning, detection and tracking, imaging guidance, etc.) and civil (such as scientific research, remote sensing, industrial monitoring, medical, etc.) fields. An infrared detector...

Images