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双通道快照式计算光谱偏振成像方法研究

Dual Channel Snapshot Computation Spectral Polarization Imaging Method

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摘要

针对传统光谱偏振成像需要动态调制、光通量低和光谱分辨率有限等问题,提出了基于计算光谱成像和像素级偏振探测的成像新方法,以双通道形式单次成像获取目标高分辨率的空间、光谱和偏振信息。搭建了编码孔径光谱偏振成像通道和偏振成像通道的双路实验装置,得到了450~650 nm范围内25个波段在4种偏振态下的光谱数据立方体,以及每个波段的偏振度和偏振角。所提方法的光谱分辨率优于10 nm,光谱重构精度约为86.3%,相对单路成像方法,光谱重构精度提升了10.5个百分点。

Abstract

Aiming at the problems that traditional spectral polarization imaging technology requires dynamic modulation, low luminous flux and limited spectral resolution, a new imaging method based on computational spectral imaging technology and pixel-level polarization detection is proposed. The dual-channel format is used for obtaining high-resolution spatial, spectral, and polarization target information through single imaging. Further, a dual-channel experimental device with a coded-aperture spectral polarization imaging channel and a polarization imaging channel is established to obtain spectral data cubes with four polarization states in 25 bands in the range of 450-650 nm, as well as the polarization degree and polarization angle of each band. The spectral resolution of proposed method is better than 10 nm, and the spectral reconstruction accuracy is approximately 86.3%. Furthermore, the spectral reconstruction accuracy is observed to improve by 10.5 percentage points when compared with that of the single-channel imaging method.

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中图分类号:P185.14

DOI:10.3788/LOP57.143601

所属栏目:快报

基金项目:北京市科技计划课题、科技部重点研发计划课题;

收稿日期:2020-05-21

修改稿日期:2020-06-11

网络出版日期:2020-07-01

作者单位    点击查看

刘彦丽:北京空间机电研究所, 北京 100094先进光学遥感技术北京市重点实验室, 北京 100094
赵海博:北京空间机电研究所, 北京 100094先进光学遥感技术北京市重点实验室, 北京 100094
于晓杰:北京空间机电研究所, 北京 100094先进光学遥感技术北京市重点实验室, 北京 100094
王业超:北京空间机电研究所, 北京 100094先进光学遥感技术北京市重点实验室, 北京 100094
钟晓明:北京空间机电研究所, 北京 100094先进光学遥感技术北京市重点实验室, 北京 100094
薛芳:北京空间机电研究所, 北京 100094先进光学遥感技术北京市重点实验室, 北京 100094
徐婧:北京空间机电研究所, 北京 100094先进光学遥感技术北京市重点实验室, 北京 100094
张丽莎:北京空间机电研究所, 北京 100094先进光学遥感技术北京市重点实验室, 北京 100094

联系人作者:刘彦丽(yanliliu214@163.com)

备注:北京市科技计划课题、科技部重点研发计划课题;

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引用该论文

Liu Yanli,Zhao Haibo,Yu Xiaojie,Wang Yechao,Zhong Xiaoming,Xue Fang,Xu Jing,Zhang lisha. Dual Channel Snapshot Computation Spectral Polarization Imaging Method[J]. Laser & Optoelectronics Progress, 2020, 57(14): 143601

刘彦丽,赵海博,于晓杰,王业超,钟晓明,薛芳,徐婧,张丽莎. 双通道快照式计算光谱偏振成像方法研究[J]. 激光与光电子学进展, 2020, 57(14): 143601

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