Calculation method of field of view mosaic for multi-scale imaging system based on concentric spherical lens

Abstract

The invention relates to a multi-scale imaging system field of view splicing calculation method based on a concentric spherical lens, including: when adjacent detectors have overlapping fields of view, calculate the center field of view distance of adjacent detectors; when the optical system has a field of view When overlapping, calculate the minimum opening angle and maximum opening angle of the adjacent micro-camera to the center of the ball lens according to the distance of the field of view at the center of the adjacent detector; adjust the size of the overlapping area of ​​the field of view of the optical system according to the minimum opening angle and the maximum opening angle. The method proposed by the present invention can control the size of the overlapping area of ​​the field of view according to the requirements, avoiding that in the process of field of view splicing, the overlapping area is too small, resulting in the failure of image splicing, and the overlapping area is too large, resulting in waste of the field of view, causing design difficulty and The problem of increased processing costs; at the same time, the calculation method proposed by the invention can effectively reduce the number of micro-cameras, reduce costs, and improve the feasibility of the entire system.

Description

technical field [0001] The invention belongs to the technical field of optical imaging, and in particular relates to a concentric spherical lens-based multi-scale imaging system field of view splicing calculation method. Background technique [0002] With the continuous development of space technology, people are more and more eager to obtain rich scene information in a large field of view, so the real-time acquisition of large field of view and high-resolution spatial image information is particularly important. For traditional optical imaging systems, the total amount of information is determined by the number of pixels of the detector. Once the total amount of information is determined, the field of view and resolution become a pair of contradictory parameters, that is, the field of view of the imaging system cannot be improved at the same time. and resolution. [0003] At present, under the premise of ensuring high resolution, the method of realizing a large field of vi...

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Problems solved by technology

[0004] However, when this method uses the micro-camera array to perform secondary imaging on the primary image plane formed by the concentric spherical lens, the size of the overlapping area between adjacent fields of view is difficult to control, and the overlapping area is too small, resulting in the inability to achieve image stitching. The overlapping area is too large, resulting in a waste of field of view, resulting in design difficulty and increased processing costs

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