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Non-coaxial four-channel polarization imaging method and system

A polarization imaging and imaging system technology, applied in the direction of measuring the polarization of light, measuring devices, instruments, etc., can solve the problems of reduced imaging resolution, time-sharing system can not be real-time imaging, low energy utilization rate of the system, etc., to improve the polarization The effect of imaging contrast

Inactive Publication Date: 2018-09-18
INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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Problems solved by technology

The time-sharing system cannot perform real-time imaging and cannot meet the application scenarios of moving targets; the amplitude-divided system, aperture-divided system and focal plane system all have spectroscopic devices, resulting in low system energy utilization and reduced imaging resolution. It is difficult when the distance from the target or low-light environment

Method used

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  • Non-coaxial four-channel polarization imaging method and system
  • Non-coaxial four-channel polarization imaging method and system
  • Non-coaxial four-channel polarization imaging method and system

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Embodiment Construction

[0029] The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0030] Such as figure 1 Shown is a block diagram of the general structure connection of a non-coaxial four-channel polarization imaging system of the present invention. It includes four polarizers 11 , four optical lenses 12 , four CCD imaging modules 13 , and an image acquisition and processing system 14 .

[0031] The four polarizers 11 are used to filter the reflected light with polarized characteristics of the target into linearly polarized light with the same angle as the set polarizer, and the four channels respectively transmit linearly polarized light with four angles.

[0032] The optical lens 12 is used to collect the linearly polarized light passing through the polarizer, and collect the optical signal on the CCD imaging module.

[0033] The CCD imaging module 13 is used to acquire optical signals of different polar...

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Abstract

The invention discloses a non-coaxial four-channel polarization imaging method and system. Aiming at the defects that a current polarization imaging system is low in energy utilization rate, is not high in imaging resolution and cannot achieve the imaging of a remote target and a target in a glimmer environment, the invention proposes and achieves the polarization imaging method which performs multi-channel collection of four different polarization detection angles, and effectively improves the polarization imaging resolution and imaging quality. The specific angles of the four channels and the baseline length in the method can be adjusted according to targets in different environments and at different distances, thereby achieving the purpose of improving the target contrast.

Description

technical field [0001] The invention is based on the field of polarization imaging detection, and in particular relates to a non-coaxial four-channel polarization imaging method and system. Background technique [0002] The amount of information in light waves is very rich. According to the electromagnetic theory of light waves, the information contained in light waves mainly includes: light intensity, wavelength, phase, and polarization state, where the polarization state includes polarization degree, polarization angle, and polarization ellipticity. Traditional imaging detection technology focuses on the intensity information and spectral information of the target. From the perspective of the transverse wave properties of electromagnetic waves, polarization is also one of the important characteristics of electromagnetic waves. Therefore, the amount of detection information can be expanded from three dimensions to seven dimensions through polarization imaging technology, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J4/00
CPCG01J4/00
Inventor 白峻杰马浩统亓波任戈储君秋向春生刘子栋史建亮
Owner INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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