Method and device for infrared gaze tomography of target tracking

Abstract

The invention discloses a method for infrared gaze tomography. The method comprises the following steps of: modulating and dividing an image with a large visual field and high resolution into sub visual fields; modulating the sub visual fields into a two-dimensional chromatography array through a chromatography modulator; reducing the two-dimensional chromatography array through a convergent lens array, and then imaging on a low-resolution small-scale infrared focal plane array to obtain a two-dimensional chromatography digital array; realizing image reconstruction by using a two-dimensional chromatography reconstructing algorithm; and removing false signals through image treatments of deblurring, filtering and the like to realize reconstruction of a target image. According to the method, the chromatography modulation is realized by adopting a knife edge cone scanner array or a liquid crystal light valve cone scanner. By the method, the large visual field is divided into small visual fields which are modulated into the two-dimensional low-resolution chromatography array, image restoration is realized by using the two-dimensional chromatography reconstructing algorithm, the visual field is increased by adopting sub visual field two-dimensional chromatography and two-dimensional reconstruction, and the frame frequency is improved; and the method has low requirements on infrared focal plane array pixel number and size, and has the advantages of low cost and the like.

Description

Technical field [0001] The invention relates to a multi-target tracking infrared imaging method, in particular to an infrared staring imaging device that can be used for target tracking. Background technique [0002] With the continuous improvement of target tracking accuracy, in order to find and track targets at a long distance, more target information needs to be obtained, and the spatial resolution requirements for target detection are getting higher and higher to facilitate longer-distance tracking. At the same time, infrared imaging is required to have a larger field of view to meet the requirements of target search and discovery capabilities. Infrared imaging is generally realized by mechanical scanning of modulation disk and staring imaging (electronic scanning), but in infrared imaging, the spatial resolution and the total field of view are contradictory. It is difficult to increase the spatial resolution to reduce the field of view. At the same time, the requirements o...

AI Technical Summary

Problems solved by technology

Infrared imaging is generally realized by mechanical scanning of reticle and staring imaging (electronic scanning). However, in infrared imaging, the spatial resolution and the size of the total field of view are contradictory. It is difficult to increase the spatial resolution by reducing the field of view. At the same time, the requirements of large field of view and high spatial resolution cannot be met, such as the requirements of fault diagnosis in power and telecommunication systems in a large-scale complex environment.

The spatial resolution of the infrared focal plane array is insufficient. The larger the array, the higher the manufacturing cost, and the more complex the nonlinear correction is, and the development level is limited by the development level of large-scale integrated circuits and multi-element detectors. It is difficult to achieve large field of view and high resolution. Infrared Imaging Requirements for

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