A Novel Snapshot Polarization Spectral Imaging System with Adjustable Multi-dimensional Parameters

Abstract

A novel snapshot polarization spectral imaging system with adjustable multi-dimensional parameters, consisting of an objective lens, a collimating mirror, a beam splitting grating, a converging mirror A, a digital micromirror device (DMD), a converging mirror B, a light combining grating, and a split-aperture polarization component , charge-coupled device (CCD) and computer. The polarization spectrum system is based on the programmable function of the DMD to control the reflection direction of the code element of the encoding matrix to modulate the spectral resolution, and at the same time modulate the polarization state of the measured light through the sub-aperture polarization component, and use the CCD pixel The combined method modulates the spatial resolution, and finally realizes the flexible modulation of the multi-dimensional parameters of this novel snapshot polarization spectroscopy system. The present invention has the ability to flexibly modulate the target spatial resolution, spectral resolution and polarization state, and helps to obtain a suitable multi-dimensional parameter combination detection mode under certain detection conditions, so as to reduce the spectral resolution, spatial scale effect and Influence of atmospheric effect on detection accuracy.

Description

technical field [0001] The invention relates to a novel snapshot-type polarization spectrum imaging system with adjustable multi-dimensional parameters, which refers to a polarization spectrum imaging detection system that can flexibly modulate spatial and spectral resolution and polarization state. Background technique [0002] With the development of remote sensing science and the deepening of remote sensing applications, optical remote sensing instruments for integrated detection of target multi-dimensional information have emerged in recent years. A typical one is to add polarization devices to traditional spectral imaging detection systems to form polarized spectral imaging detection. The detection capability of this type of polarization spectral imaging system mainly depends on its spectral splitting mode and polarization modulation mode. [0003] In recent years, snapshot coded aperture spectroscopy based on computational imaging has emerged as a new type of snapshot ...

AI Technical Summary

Problems solved by technology

However, due to the problems of fixed spatial and spectral resolution, complex spectral unmixing, and slow calculation speed in this type of system, there is still a certain distance between this technology and practical applications.

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