High-order mapping spectral imaging system and method

Abstract

The invention belongs to the optical field, and particularly relates to a high-order mapping spectral imaging system and a method. Based on high-order mapping, a novel high-order mapping spectral imaging method is provided. Unlike general transformation, high-order mapping has the features corresponding to different sets and features of high-dimensional transformation, and thus, the transformation domain is wider, and the transformation dimension is higher. Meanwhile, as slit dispersion and filter light splitting are cancelled, the high resolution is ensured, and the multichannel advantages brought by high-order mapping can ensure a high signal-to-noise ratio. Particularly, high-order mapping can realize consistent detection on multi-dimensional information, and in comparison with a multi-dimensional information detection mode of single-dimensional information detection firstly and then combination, hardware requirements are reduced. The system and the method of the invention have the beneficial effects that the high-resolution spectral imaging system realization problem is solved; the problem that the high-signal-to-noise ratio spectral imaging energy is not enough is solved; and the high-dimensional spectral imaging technical means problem can be solved.

Description

technical field [0001] The invention belongs to the field of optics, in particular to a high-order mapping spectral imaging system and method. Background technique [0002] In order to realize the development of spectral imaging technology in the direction of high spatial resolution, high spectral resolution, and high signal-to-noise ratio, many spectral imaging systems that do not use traditional slit dispersion and filter splitting have emerged, such as interferometric spectral imaging technology, which is characterized by the use of Fourier transform, through multi-channel acquisition and discarding slits, realizes the guarantee of light energy at high spectral resolution, and then ensures high signal-to-noise ratio. The emergence of interferometric spectral imaging technology has led more and more researchers to consider using mathematical transformations to achieve spectral imaging, typically including computed tomography spectral imaging technology, Hadar code transfor...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a high-order mapping spectral imaging system and method to overcome the difficulty of engineering implementation under high resolution and high signal-to-noise ratio in the prior art, the deterioration of imaging accuracy, and the inability to realize high-dimensional imaging Defects

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