Spectrum camera based on all-pass single-template complementary sampling and imaging method

Abstract

The invention provides a spectrum camera based on all-pass single-template complementary sampling and an imaging method for solving a technical problem that a conventional spectral imaging system is complex in structure and poor in spectral image reconstruction quality. The spectrum camera comprises a lens group, an encoding module, an observation module, and an image reconstruction processing module. The lens group is composed of a group of lenses. The encoding module uses an area array structure formed by random combination of multiple transmission array elements and reflection array elements, and forms an acute angle with the transmission direction of the spectral image, and is used for randomly encoding the transmission information and the reflection information of the spectral image. The observation module comprises a transmission observation module and a reflection observation module and is used for performing transmission observation and reflection observation on the encoded spectral image. The image reconstruction processing module simultaneously fuses two observation results to reconstruct the spectral image. The spectrum camera is simple in system structure, high in luminous flux, and short in exposure time, and can be used in the fields of mineral exploration, natural disaster monitoring, and military reconnaissance.

Description

technical field [0001] The technology of the present invention belongs to the technical field, and relates to a spectral camera and imaging method based on compressed sensing, in particular to a spectral camera and imaging method based on full-pass single-template complementary sampling, which can be applied to mineral exploration, natural disaster monitoring and military reconnaissance and other fields. Background technique [0002] Matter in reality exists in the form of its unique radiation, absorption or reflection spectrum. Spectral imaging is a three-dimensional data cube that describes the objective world from two aspects of spectrum and space. It can not only provide the image of the observed object, but also provide the intensity information of its absorption and reflection spectra. The spectral information of objects is not constant but is constantly changing due to the influence of various factors, which makes spectral imaging technology widely used in military r...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the above-mentioned defects in the prior art, and propose a spectral camera and imaging method based on all-pass single-template complementary sampling, which is used to solve the complex structure of the existing spectral imaging system, and because of low luminous flux and exposure The technical problem of poor spectral image reconstruction quality caused by long time

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