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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

王莉雅, 段锦, 付强, 郝有菲, 刘鹏, 范新宇. 多角度探测的不同材质表面偏振特性实验分析[J]. 应用光学, 2023, 44(1): 137-144. doi: 10.5768/JAO202344.0103004
引用本文: 王莉雅, 段锦, 付强, 郝有菲, 刘鹏, 范新宇. 多角度探测的不同材质表面偏振特性实验分析[J]. 应用光学, 2023, 44(1): 137-144. doi: 10.5768/JAO202344.0103004
WANG Liya, DUAN Jin, FU Qiang, HAO Youfei, LIU Peng, FAN Xinyu. Experimental analysis of polarization properties of different material surfaces by multi-angle detection[J]. Journal of Applied Optics, 2023, 44(1): 137-144. doi: 10.5768/JAO202344.0103004
Citation: WANG Liya, DUAN Jin, FU Qiang, HAO Youfei, LIU Peng, FAN Xinyu. Experimental analysis of polarization properties of different material surfaces by multi-angle detection[J]. Journal of Applied Optics, 2023, 44(1): 137-144. 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
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

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

  • 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。
  • 图  1  BRDF几何关系图

    Fig.  1  Geometrical relationship diagram of BRDF

    图  2  测量装置示意图

    Fig.  2  Schematic diagram of measuring device

    图  3  设备实物图

    Fig.  3  Physical picture of equipment

    图  4  数据采集场景图

    Fig.  4  Data acquisition scenario

    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

    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

    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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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

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