Contrast optimization in broadband passive polarimetric imaging based on color camera

被引：10

作者：

Guan, Zijian ^{[1
,2
,3
]}

Goudail, Francois ^{[4
]}

Yu, Mingxuan ^{[1
,2
]}

Li, Xiaobo ^{[1
,2
]}

Han, Qun ^{[1
,2
]}

Cheng, Zhenzhou ^{[1
,2
]}

Hu, Haofeng ^{[1
,2
,3
]}

Liu, Tiegen ^{[1
,2
]}

机构：

[1] Tianjin Univ, Sch Precis Instrument & Optoelect Engn, Tianjin 300072, Peoples R China

[2] Minist Educ, Key Lab Optoelect Informat Technol, Tianjin 300072, Peoples R China

[3] Qingdao Natl Lab Marine Sci & Technol, Joint Lab Ocean Observat & Detect, Qingdao 266237, Peoples R China

[4] Univ Paris Saclay, CNRS, Grad Sch, Lab Charles Fabry,Inst Opt, F-91127 Palaiseau, France

来源：

OPTICS EXPRESS | 2019年 / 27卷 / 03期

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

TARGET DETECTION; DISCRIMINATION;

D O I：

10.1364/OE.27.002444

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Broadband polarimetric imaging consists of forming an image under spectrally wide illumination after having optimized the polarization state analyzer (PSA) to maximize the target/background discriminability. In previous works, the image sensor was monochrome, and only the intensity contrast was optimized. However, due to its spectrally varying response, the PSA not only changes the light's intensity, but also its color. This color information can serve as a further parameter to improve discrimination. In this paper, we employ a color camera in a broadband Stokes (passive) polarimetric imaging system and take into color difference's contribution to discrimination ability in optimizing the PSA setting. We show through experiments that a significant improvement of discrimination ability over monochrome imaging is obtained, especially when there are multiple objects in the scene. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

引用

页码：2444 / 2454

页数：11

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