Measured comparison of the crossover periods for mid- and long-wave IR (MWIR and LWIR) polarimetric and conventional thermal imagery

被引：53

作者：

Felton, M. ^{[1
]}

Gurton, K. P. ^{[1
]}

Pezzaniti, J. L. ^{[2
]}

Chenault, D. B. ^{[2
]}

Roth, L. E. ^{[3
]}

机构：

[1] USA, Res Lab, Adelphi, MD 20783 USA

[2] Polaris Sensor Technol Inc, Huntsville, AL 35801 USA

[3] USA, Armament Res & Dev Engn Ctr, Picatinny Arsenal, NJ 07806 USA

来源：

OPTICS EXPRESS | 2010年 / 18卷 / 15期

关键词：

D O I：

10.1364/OE.18.015704

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report the results of a multi-day diurnal study in which polarimetric and conventional thermal imagery is recorded in the mid- and long-wave IR to identify and compare the respective time periods in which minimum target contrast is achieved. The data shows that the chief factors affecting polarimetric contrast in both wavebands are the amount of thermal emission from the objects in the scene and the abundance of MWIR and LWIR sources in the optical background. In particular, it has been observed that the MWIR polarimetric contrast was positively correlated to the presence of MWIR sources in the optical background, while the LWIR polarimetric contrast was negatively correlated to the presence of LWIR sources in the optical background. (C) 2010 Optical Society of America

引用

页码：15704 / 15713

页数：10

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[4]

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