多角度探测的不同材质表面偏振特性实验分析

王莉雅; 段锦; 付强; 郝有菲; 刘鹏; 范新宇

doi:10.5768/JAO202344.0103004

多角度探测的不同材质表面偏振特性实验分析

doi: 10.5768/JAO202344.0103004

王莉雅^1,,
段锦^{1, 2, ,},
付强^{1, 2},
郝有菲¹,
刘鹏¹,
范新宇¹

1.
长春理工大学电子信息工程学院，吉林长春 130022
2.
长春理工大学空间光电技术研究所，吉林长春 130022

基金项目: 国家重大科研仪器研制项目（62127813）

详细信息

作者简介:
王莉雅（1995—），女，硕士研究生，主要从事偏振传输与成像方面的研究。E-mail：627602950@qq.com

通讯作者:
段锦（1971—），男，教授，博士生导师，主要从事偏振传输与成像、图像处理等方面的研究。 E-mail: duanjin@vip.sina.com

中图分类号: TN206; O436.3
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- 被引次数: 0
出版历程
- 收稿日期: 2021-11-02
- 修回日期: 2022-09-09
- 网络出版日期: 2022-09-13
- 刊出日期: 2023-01-17

Experimental analysis of polarization properties of different material surfaces by multi-angle detection

WANG Liya^1
,,
DUAN Jin^{1, 2
, ,},
FU Qiang^{1, 2},
HAO Youfei¹,
LIU Peng¹,
FAN Xinyu¹

1.
School of Electronical and Information Engineering, Changchun University of Science and Technology, Changchun 130022, China
2.
Institute of Space Optoelectronics Technology, Changchun University of Science and Technology, Changchun 130022, China

摘要

摘要: 相比于强度探测，使用偏振探测的方法能有效增强地物目标（如伪装目标）识别的准确性。设计并搭建偏振特性测试系统，对铁板、玻璃板、绿漆涂层铁板、绿漆涂层玻璃板、草皮这5种目标进行多角度偏振成像实验。首先，通过旋转偏振片将入射光源设置为完全线偏振光。其次，在偏振相机镜头前加滤光片，来获取同一中心波段下5种材质在各个探测天顶角、探测方位角下的图像。最后，将获得的偏振图像进行偏振度计算。结果表明，不同材质的保偏特性不同，且物体偏振度只与材质表面涂层有关，与内部组成成分无关；在镜面反射方向，目标的偏振度最大。这说明偏振光探测能作为材料分类的依据，可应用于遥感探测、物证搜寻等方面，还对反偏振侦察的特殊伪装材料制作有一定指导意义。
- 偏振 /
- 偏振度 /
- 天顶角 /
- 方位角 /
- 地物目标识别
Abstract: Compared with intensity detection, the polarization detection can effectively enhance the accuracy of ground object target (such as camouflaged target) recognition. A polarization properties test system was designed and built to conduct the multi-angle polarization imaging experiments on five targets, namely iron plate, glass plate, green lacquer-coated iron plate, green lacquer-coated glass plate and turf. First, the incident light source was set to completely linearly polarized light by rotating the polarizer. Then, a filter was added in front of the polarized camera lens to obtain the images of five materials in the same central band at various detection zenith angles and detection azimuth angles. Finally, the polarization degree of the obtained polarization image was calculated. The results show that the polarization preserving properties of different materials are different, and the polarization degree of the object is only related to the surface coating of the material, and has nothing to do with the internal composition. In the direction of specular reflection, the target has the largest degree of polarization. This indicates that the polarized light detection can be used as a basis for material classification, which can be applied to remote sensing detection, material evidence search and other aspects, and has certain guiding significance for the production of special camouflage materials for anti-polarization reconnaissance.
- polarization /
- degree of polarization /
- zenith angle /
- azimuth angle /
- ground object identification

HTML全文

图 1 BRDF几何关系图

Fig. 1 Geometrical relationship diagram of BRDF

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图 2 测量装置示意图

Fig. 2 Schematic diagram of measuring device

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图 3 设备实物图

Fig. 3 Physical picture of equipment

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图 4 数据采集场景图

Fig. 4 Data acquisition scenario

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图 5 5种材质在不同方位角下的目标偏振度变化曲线

Fig. 5 Change curves of degree of target polarization of five materials at different azimuth angles

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图 6 5种材质在不同天顶角下的目标偏振度变化曲线

Fig. 6 Change curves of degree of target polarization of five materials at different zenith angles

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图 7 5种材质在不同探测角下的目标偏振度三维曲线

Fig. 7 3D curves of degree of target polarization of five materials at different detection angles

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