Multi-aperture variable spatial resolution bionic thermal imaging method and device

Abstract

The invention discloses a multi-aperture variable spatial resolution bionic thermal imaging method and device. The multi-aperture variable spatial resolution bionic thermal imaging method and device in the invention can eliminate the contradiction between large field-of-view search and high-resolution imaging, realize target space information acquisition and rapid detection of moving targets, andincrease the target detection / recognition capability. The multi-aperture variable spatial resolution bionic thermal imaging method and device in the invention utilizes a plurality of sets of single-aperture infrared imaging detector components with fixed tilt angles to image the target, partial overlap of the field of view is formed, and the field of view is divided into multiple sub-fields; the more the overlapped detectors are, the higher the resolution of the region is; a visual mode of large field-of-view search and central field-of-view resolution similar to the human eyes is constructedthrough large field-of-view splicing and high resolution image processing so as to achieve the basic functions of multi-aperture variable spatial resolution bionic thermal imaging and alleviate the contradiction between the field of view and the high resolution; and a multi-view stereo vision with divergent visual axis is formed by using the overlapped field formed by the sub-aperture, so that target space positioning and rapid detection of the moving target can be realized.

Description

technical field [0001] The invention relates to the technical field of photoelectric detection and image processing, and relates to an imaging method, imaging theory and distribution mode of a thermal imaging system, and in particular to a multi-aperture variable spatial resolution bionic thermal imaging method and device. Background technique [0002] Infrared thermal imaging is a key technology that is currently under development at home and abroad. Since the infrared focal plane detector array (InfraRed Focal Plane Array, IRFPA) is much smaller than the silicon-based visible light CCD / CMOS detector, the contradiction between the working distance of the system and the imaging field of view is more prominent. Multi-aperture imaging technology is a new imaging mode that is rapidly developing at present, and it is expected to solve or slow down many problems of traditional single-aperture thermal imaging: 1) The contradiction between large field of view and high resolution; 2...

AI Technical Summary

Problems solved by technology

Multi-aperture imaging technology is a new imaging mode that is currently developing rapidly, and it is expected to solve or slow down many problems of traditional single-aperture thermal imaging: 1) The contradiction between large field of view and high resolution; 2) The miniaturization of diffraction-limited systems; 3 )Single-aperture imaging does not take advantage of optical parallel processing; 4) The problem of losing three-dimensional information of the scene during the imaging process; 5) Lack of self-detection, tracking and judgment capabilities of biological vision for moving objects

At present, most of the artificial photoelectric imaging systems are monocular systems. Not only are the limited detector arrays evenly distributed in the field of view, resulting in the mutual limitation of the imaging field of view and resolution, but also the monocular vision lacks intelligent features such as spatial positioning and fast tracking of moving targets.

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