Three-channel and single-Wollaston prism polarization imaging device and polarization information detecting method

Abstract

The invention discloses a three-channel and single-Wollaston prism polarization imaging device and a polarization information detecting method and aims to solve the problem that the prior art is redundant in structure and low in resolution and cannot detect target polarization information in real time. The polarization imaging device comprises a front optical lens group (1), a polarization modulation module (2), a focusing imaging module (3) and a data processing module (4), wherein the polarization modulation module (2) is a polarization modulation structure composed of a non-polarization beam-splitting prism (21), a linear polarizer (22) and a single Wollaston prism (23), three polarization azimuth angle images of a target can be obtained by one exposure through the polarization modulation structure, and super-resolution reconstruction and registration and polarization state analysis and fusion are sequentially performed on the three polarization azimuth angle images through the data processing module (4) to obtain a target image containing the target polarization information and scene detail information. The three-channel and single-Wollaston prism polarization imaging device is simple in structure, high in space resolution and applicable to target detection and environment monitoring.

Description

technical field [0001] The invention belongs to the field of photoelectric imaging detection, in particular to a polarization imaging device and a polarization information detection method thereof, which are used for target detection, material identification and environmental monitoring. Background technique [0002] Polarization is another dimensional property of light waves different from intensity, phase, and spectrum, and it provides important information on the properties of the target surface. Polarization imaging detection can improve the recognition rate of the target in the cluttered background, or it can be used to improve the contrast and clarity of the image. The polarization characteristics of target optical radiation are usually characterized by Stokes parameters which are easy to measure. The common way to detect the linear polarization component in the Stokes parameter is to take four different polarization azimuth images, such as I 0° , I 45° , I 90° and...

AI Technical Summary

Problems solved by technology

If the polarization analysis of the whole link is carried out, there is still redundancy of components

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