Design and construction of real-time all-polarization imaging detector for skylight

Yong-tai CHEN; Ran ZHANG; Wei LIN; Jin-kui CHU

doi:10.3788/OPE.20182604.0816

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Design and construction of real-time all-polarization imaging detector for skylight

Modern Applied Optics | 更新时间：2020-07-05

- Design and construction of real-time all-polarization imaging detector for skylight
- Optics and Precision Engineering Vol. 26, Issue 4, Pages: 816-824(2018)
- 作者机构：
  
  大连理工大学机械工程学院, 辽宁大连 116023
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20182604.0816
  CLC： O436.3;V249.32
- Received：19 July 2017，
  
  Accepted：23 August 2017，
  
  Published：25 April 2018
- 稿件说明：
移动端阅览
Yong-tai CHEN, Ran ZHANG, Wei LIN, et al. Design and construction of real-time all-polarization imaging detector for skylight[J]. Optics and precision engineering, 2018, 26(4): 816-824.
DOI：

Yong-tai CHEN, Ran ZHANG, Wei LIN, et al. Design and construction of real-time all-polarization imaging detector for skylight[J]. Optics and precision engineering, 2018, 26(4): 816-824. DOI： 10.3788/OPE.20182604.0816.

摘要

生物利用天空偏振光进行导航的方式给科研人员很大的启发，越来越多的学者正在进行这方面的研究。精确的天空偏振场图是进行偏振导航的前提条件，为了获取更加准确的天空偏振场图，许多成像式偏振探测装置被开发出来。本文提出了一种新型的实时全偏振一体式成像探测传感器，可以获取全参数Stokes矢量，进而解算出目标的AOP、DOP、LDOP和CDOP等信息。基于C++语言和OpenCV库，采用MFC架构开发了上位机程序，实现了目标偏振信息的实时显示。在最大分辨率下，视频流的刷新率为3 frame/s，基本满足了实时探测的需要。对晴朗天气条件下天空偏振场图进行了实际探测，实验过程中探测器性能稳定，天空偏振场图与瑞利散射模型具有较高的一致性，太阳子午线动态识别误差为0.01°~0.23°，初步证明了探测器的可靠性，为后续工作奠定了基础。

Abstract

Researchers have been highly inspired by the bio-use of polarized light navigation

and increasing number of studies are being conducted at the same time. A precise sky polarization field map is one of the prerequisites for polarization navigation and many imaging polarization detectors have thus been developed for attaining a more accurate sky polarization field map. This study proposes a novel real-time all-polarization imaging detector that can obtain all the parameters of the Stokes vector

and can thereby calculate various attributes of Angle of Polarization (AOP)

Degree of Polarization(DOP)

Degree of Linear Polarization(LDOP)

and Degree of Circular Polarization (CDOP). By incorporating the MFC architecture through C++ programming language and the OpenCV library

the host computer program was developed for implementing the real-time display function of a target's polarization information. Refresh rate of the video stream was 3 frame/s at maximum resolution

which primarily satisfies the need of real-time detection. Observation of the sky polarization field map was performed under clear weather conditions and the performance of the detector was found to be stable during the course of the proposed experiment. The obtained experimental results are in good agreement with the Rayleigh scattering model

and the dynamic recognition deviation of the solar meridian can range from 0.01° to 0.23°

which corroborates the reliability of the proposed detector and lays the foundation for future work.

关键词

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references

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