Full-polarization hyperspectral compressive sensing imaging method based on lctf

Abstract

The invention discloses an LCTF-based full-polarization hyperspectral compressed sensing imaging system and an LCTF-based full-polarization hyperspectral compressed sensing imaging method. The LCTF-based full-polarization hyperspectral compressed sensing imaging system comprises a linear retarder, a liquid crystal tunable optical filter, a digital micro mirror array and an area array detector, wherein a Mueller matrix of the linear retarder is designed such that absolute values of first two elements of each column are different; the linear retarder and the liquid crystal tunable optical filter realize polarization dimension compression jointly; the liquid crystal tunable optical filter switches L different center wavelengths, outputs images in each band, and realizes spectral dimension compression; the digital micro mirror array encodes the images of each band, and realizes spatial dimension coding compression; and an original image is detected by means of the area array detector after sequentially passing through the linear retarder, the liquid crystal tunable optical filter and the digital micro mirror array, so as to obtain an image containing full Stokes parameters. By applying the LCTF-based full-polarization hyperspectral compressed sensing imaging system and the LCTF-based full-polarization hyperspectral compressed sensing imaging method, compression reconstruction ofthe full Stokes parameters of the original image can be realized.

Description

technical field [0001] The invention belongs to the technical field of polarization hyperspectral imaging, and in particular relates to an LCTF-based full polarization hyperspectral compressed sensing imaging method, which realizes compressed measurement and reconstruction of polarization dimension, spectral dimension and spatial dimension. Background technique [0002] Polarization hyperspectral imaging technology is a combination of hyperspectral imaging technology and polarization imaging technology. Polarization hyperspectral imaging can simultaneously obtain the spatial, spectral and polarization information of the target, and analyze the geometrical and shadow characteristics of the target, the spectral characteristics of reflected, transmitted and radiated electromagnetic waves, and the physical and chemical characteristics of materials such as surface roughness, density, conductivity, and water content. Integrate perception, and then deeply evaluate, classify and ide...

AI Technical Summary

Problems solved by technology

[0006] In summary, the existing technology can only realize the first three Stokes parameters S of the original spectrum 0 ~S 2 The compression reconstruction of the original image cannot realize the full Stokes parameter S 0 ~S 3 compression reconstruction

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