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Compound-eye multispectral camera with extremely large field of view based on cross transfer between adjacent apertures

A multi-spectral and aperture technology, applied in spectrometry/spectrophotometry/monochromator, spectrum investigation, optical radiation measurement, etc., can solve the problems of difficult large field of view shooting, small imaging range, etc., to achieve The effect of image super-resolution reconstruction

Active Publication Date: 2018-11-02
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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Problems solved by technology

However, general multi-spectral cameras, like ordinary cameras, have a small imaging range, and it is difficult to shoot with a large field of view.

Method used

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  • Compound-eye multispectral camera with extremely large field of view based on cross transfer between adjacent apertures
  • Compound-eye multispectral camera with extremely large field of view based on cross transfer between adjacent apertures
  • Compound-eye multispectral camera with extremely large field of view based on cross transfer between adjacent apertures

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Embodiment Construction

[0030] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0031] The design of the large field of view compound eye multispectral camera system based on the cross-transfer of adjacent apertures in the present invention mainly involves two problems: one is to perform large-field imaging by imitating the biological compound eye structure in nature; the other is to use the working mode of cross-transfer between adjacent apertures Multispectral imaging of targets over a large field of view. These two problems are solved in two ways but are interrelated to form a multispectral camera system capable of large field of view imaging.

[0032] figure 1 is a schematic diagram of the cross-transfer mode between adjacent apertures of this wide-field multispectral camera. Each small circle in the figure represents an aperture, and each icon represents a filter of a wavelength band, a total of λ 0 -λ 6 seven bands. The ...

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Abstract

The invention provides a solution to the problem that an existing multi-spectral camera is provided with a small field-of-view so as to realize the multi-spectral imaging on an extremely large field-of-view by providing a practically workable curved-surface-bionic-compound-eye-based extremely-large field-of-view multi-spectral camera designing scheme. The multi-spectral camera comprises three sub-systems: a curved-surface micro-lens array with different light filtering lenses, an optical transformation sub-system, and a data processing unit with an image sensor. The extremely-large field-of-view compound eye multi-spectral camera based on adjacent aperture intersecting transmission is capable of realizing the multi-spectral imaging on an extremely-large field-of-view object with the angle of the field-of-view up to 120 degrees. In addition to the outputting of multi-spectral images, the camera is also capable of performing functions of large field-of-view image super-resolution reconstruction, field depth expansion and 3D imaging.

Description

technical field [0001] The invention belongs to the field of spectral imaging and mechanical processing of optical elements, and in particular relates to the design of a compound-eye multi-spectral camera with a large field of view based on the cross transfer of adjacent apertures. Background technique [0002] The multi-spectral camera is based on visible light and extends to infrared light and ultraviolet light. Through the combination of various filters or beam splitters and various photoreceptors, it can simultaneously receive the same target in different narrow spectral bands. The information radiated or reflected on the surface can be used to obtain images of different spectral bands of the target. Multi-spectral cameras are mainly divided into three categories: one is multi-lens multi-spectral camera, which has multiple lenses, each lens has a filter corresponding to a narrow spectral band, multiple lenses shoot the same scene at the same time, Use the same receiver ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01J3/28
CPCG01J3/2823G01J2003/2826
Inventor 鱼卫星史成勇王元元胡炳樑
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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