A method for image processing of ifts based on multi-level stepped micromirrors

Abstract

The invention relates to an IFTS map processing method based on a multi-level stepped micro-mirror, comprising the steps of: acquiring an interference data cube; dividing the interference image of the interference data cube into image units corresponding to different interference levels to obtain the interference image unit ; The interference image units of the same level in each interference image of the interference data cube are image stitched by combining deep learning and feature stitching according to the scanning direction to obtain a sequence of scene images; image fusion based on frequency domain filtering is performed on the sequence of scene images , to obtain the scene image; the interference image units of different orders containing the same target in each interference image of the interference data cube are image-stitched according to the order of optical path difference to obtain the interference image sequence of the target; Fourier transform is performed on the interference image sequence transform to get the reconstructed spectrum of the target. The invention improves the precision of map information inversion of IFTS based on multi-level stepped micro-reflectors.

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 a multi-level ladder micro-mirror. 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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