可见光偏振成像系统对低对比度目标的探测

胡冬梅; 刘泉; 牛国成

doi:doi:10.3788/lop54.061101

激光与光电子学进展, 2017, 54 (6): 061101, 网络出版: 2017-06-08

可见光偏振成像系统对低对比度目标的探测下载： 797次

Low Contrast Target Detection Based on Visible Light Polarization Imaging System

论文大纲

胡冬梅 ^1,2,*刘泉 ¹牛国成 ^1,2

作者单位

¹ 长春理工大学电子信息工程学院, 吉林长春 130022

² 北华大学电气信息工程学院, 吉林长春 132021

成像系统偏振成像斯托克斯矢量液晶相位可变延迟器图像增强 imaging systems polarization imaging Stokes vector liquid crystal variable retarder image enhancement

AI 词云图 AI一句话精读 AI短摘要

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摘要

为实现低对比度、复杂背景下隐蔽目标的探测，搭建了双液晶相位可变延迟器(LCVR)的分时全偏振成像系统，提出了基于最小2-范数条件数的系统中2个LCVR相位延迟量控制的最优化组合方案。为探测隐蔽目标的真实偏振状态，在该组合方案设置下标定得到了系统仪器矩阵，并对隐藏于树阴下的绿色涂层目标进行了野外成像实验。实验结果表明，普通强度图像中目标与背景的对比度几乎为零，而经反演得到的S0图像中目标与背景对比度为0.2525，结果进一步证明，该分时偏振成像系统可以有效地实现复杂背景下低对比度目标的探测。

Abstract

In order to detect the low contrast targets in the complicated background, the time division full polarization imaging system based on dual liquid crystal variable retarders (LCVR) is developed, and an optimum combination scheme based on the minimum 2-norm is proposed in the control of LCVR phase retardation. The system instrument matrix is calibrated with the optimum phase retardation combination, and the field imaging experiment is carried out when the green coating targets are hidden in the shade. The experimental result shows that the contrast between the target and its background is almost zero in the ordinary intensity image and 0.2525 in the S0 image obtained by inversion. The achieved result further proves that the system can effectively realize low-contrast target detection in complex background.

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胡冬梅, 刘泉, 牛国成. 可见光偏振成像系统对低对比度目标的探测[J]. 激光与光电子学进展, 2017, 54(6): 061101. Hu Dongmei, Liu Quan, Niu Guocheng. Low Contrast Target Detection Based on Visible Light Polarization Imaging System[J]. Laser & Optoelectronics Progress, 2017, 54(6): 061101.

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