Infrared wide-waveband hyperspectral calculation imaging device and method thereof

Abstract

The invention discloses an infrared wide-waveband hyperspectral calculation imaging device, which comprises a front-mounted infrared lens, a coding template generator and loader, a reflection-type spatial light modulator, an infrared relay lens set, a unit type spectrum radiometer, an infrared spectrum calculation imaging module and a hardware synchronous controller. The invention further discloses an infrared wide-waveband hyperspectral calculation imaging method. The unit type spectral radiometer has the advantages of being wide in spectral response range and low in system noise. The defectof mechanical scanning is avoided, and the data acquisition amount is reduced; the time needed by imaging is shortened, and the spectral resolution and the spatial resolution are improved. The devicehas the advantages of a fourier spectrum radiometer of being real-time, fast, accurate and highly sensitive, and overcome the defect that a traditional unit non-imaging type infrared imaging spectrummeter is low in mechanical scanning speed and large in data redundancy.

Description

Technical field [0001] The invention belongs to the technical field of spectral imaging, and specifically relates to an infrared broadband hyperspectral computing imaging device and a method thereof. Background technique [0002] Infrared spectroradiometer is an instrument that measures the emission spectrum of an object in the infrared band. By obtaining the infrared spectrum radiation of the object, it can analyze the radiation characteristics and physical properties of the object, such as determining the peak intensity, position and shape of the infrared emission spectrum of the object, and analyzing the infrared spectrum absorption characteristics of the gas; therefore, it has been widely used Agriculture, environment, geology, petroleum, security, military and other fields. [0003] Infrared spectroradiometers can be divided into unit non-imaging type and imaging type. The unit non-imaging infrared spectroradiometer takes the system field of view as the unit, and collects in...

AI Technical Summary

Problems solved by technology

The unit non-imaging infrared spectroradiometer takes the system field of view as the unit, collects the infrared spectral radiation distribution data in one field of view each time, and its data does not contain the target space information; its outstanding feature is that it has a wide spectral response range and relatively Low system noise; however, due to the mechanical scanning type, it requires high system stability; and the amount of collected data is huge, which is not conducive to transmission and storage

The photoelectric sensing module of the imaging infrared spectroradiometer is composed of a large number of unit sensors. Each unit sensor completes the infrared spectroradiometric measurement of the instantaneous field of view it observes, thereby realizing the spatially decomposed infrared spectroradiometric measurement and obtaining the system visual field. The spatial distribution information of infrared radiation in the field; however, the imaging infrared spectroradiometer needs to perform multiple exposures and multiple scans on the target in various dimensions to obtain the complete three-dimensional data of the target, resulting in prolonged observation time and cost expensive

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