IFTS spectrum processing method based on multi-step micro-reflector

Abstract

The invention relates to an IFTS spectrum processing method based on a multi-step micro-reflector. The method comprises the steps: obtaining an interference data cube; segmenting the interference image of the interference data cube according to image units corresponding to different interference levels to obtain interference image units; performing deep learning and feature splicing combined imagesplicing on the interference image units of the same level in each interference image of the interference data cube according to the scanning direction to obtain a scene image sequence; performing image fusion based on frequency domain filtering on the scene image sequence to obtain a scene image; splicing the interference image units of different levels of the same target contained in each interference image of the interference data cube according to an optical path difference sequence to obtain an interference image sequence of the target; and performing Fourier transform on the interference image sequence to obtain a reconstructed spectrum of the target. The precision of map information inversion of the IFTS based on the multi-step micro-reflector is improved.

Description

technical field [0001] The invention relates to the technical field of infrared spectrum analysis, in particular to a spectrum processing method of a Fourier transform imaging spectrometer (Imaging FourierTransform Spectrometer, IFTS) based on multi-level stepped micro-mirrors. Background technique [0002] Infrared imaging spectroscopy technology is a science and technology that has made great breakthroughs and developed rapidly in the past half century. It can simultaneously obtain two-dimensional spatial information and spectral information of the target. According to the infrared image information of the target and the intensity, position and shape of the absorption peak in the infrared spectrum information, the category and concentration of the target can be determined. IFTS is a kind of infrared imaging spectroscopic instrument. Due to its advantages of multi-channel, high throughput, high sensitivity and high precision, it has very obvious application advantages. [...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to use the special structure of the multi-level stepped micro-mirror for the IFTS interference system, which leads to the problem that the traditional map information processing method cannot realize the high-precision processing of the IFTS map and solve the problem caused by the processing technology of the multi-level stepped micro-mirror. Processing errors lead to problems such as reduced map accuracy, and provide a map processing method based on multi-level stepped micromirrors that is different from traditional IFTS map information processing.

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