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固态微光实时偏振成像集成技术

梁宛玉 许洁 戴放 常维静 那启跃

梁宛玉, 许洁, 戴放, 常维静, 那启跃. 固态微光实时偏振成像集成技术[J]. 中国光学. doi: 10.37188/CO.2020-0086
引用本文: 梁宛玉, 许洁, 戴放, 常维静, 那启跃. 固态微光实时偏振成像集成技术[J]. 中国光学. doi: 10.37188/CO.2020-0086
LIANG Wan-yu, XU Jie, DAI Fang, CHANG Wei-jing, NA Qi-yue. Real-time polarization imaging integrated technology for solid-state low-light imaging[J]. Chinese Optics. doi: 10.37188/CO.2020-0086
Citation: LIANG Wan-yu, XU Jie, DAI Fang, CHANG Wei-jing, NA Qi-yue. Real-time polarization imaging integrated technology for solid-state low-light imaging[J]. Chinese Optics. doi: 10.37188/CO.2020-0086

固态微光实时偏振成像集成技术

doi: 10.37188/CO.2020-0086
基金项目: 十三五装备预研项目(31512060102-2)
详细信息
    作者简介:

    梁宛玉(1985—),女,河南南阳人,硕士,高级工程师,2008.9−2011.4 南京理工大学硕士,计算机软件与理论专业,学习模式识别、数字图像处理;2011.4−2012.10在华为技术有限公司南京研究所工作,从事通讯软件的研发工作;2012.10−至今,在中国兵器工业第二一四研究所从事光电探测与图像处理方面工作。Email:wanyu-7018@163.com

    许洁(1992—),女,江苏南通人,硕士,工程师,2014.9−2017.6西安电子科技大学硕士,学习光电系统设计研究;2017.7−至今,在中国兵器工业第二一四研究所主要从事光电成像设计与图像处理方面研究工作。Email:xujieshangxian@163.com

  • 中图分类号: TN223

Real-time polarization imaging integrated technology for solid-state low-light imaging

Funds: Equipment pre research project of 13th five year plan
More Information
  • 摘要: 高性能的微光夜视探测是光电探测未来的发展方向。本文针对在微弱光照射情况下,因为感光度不足而使得获得的偏振图像存在较大误差的问题,提出了一种固态微光实时偏振成像集成技术。通过引入白光通道和4个偏振方向的8个偏振通道,可在EMCCD微光器件上实现偏振和微光探测的集成。经试验验证,该技术获取的偏振信息准确度较高,且无偏振单元的存在使得器件的最低工作照度不被降低,器件同时具备微光-偏振探测功能,除大幅提高探测器件对目标的探测识别能力外,还具有加工难度低、成本低等优点。
  • 图  1  成像器件像元与偏振单元的集成示意图

    Figure  1.  Schematic diagram of integration between the imaging device pixel and polarization unit.

    图  2  四个偏振方向的单元阵列设计

    Figure  2.  Array design in four polarization directions

    图  3  九个偏振方向的阵列设计

    Figure  3.  Array design in nine polarization directions

    图  4  四个偏振方向加无偏振单元的阵列设计

    Figure  4.  Array design with four polarization directions and without polarization

    图  5  微光偏振成像系统

    Figure  5.  Light polarization imaging system

    图  6  12偏振态成像

    Figure  6.  12-polarization images

    图  7  多偏振态图像偏振成像效果对比

    Figure  7.  Comparison of the polarization imaging effects of multi-polarization images

    图  8  四个偏振方向的单元阵列设计偏振度图像

    Figure  8.  Image of the degree of polarization of the four polarization directions array design’s output

    图  9  四个偏振方向加无偏振单元的阵列设计偏振度图像

    Figure  9.  The polarization degree of the image of the four polarization directions plus the non-polarized array design’s output

    图  12  靶标偏振图与靶标原图

    Figure  12.  Polarization diagram and original diagram of the target

    表  1  多偏振态图像偏振对比

    Table  1.   Multi-polarization image polarization contrast

    参数最大值均值对比度
    DopAopDopAopDopAopDopAop
    统计分析3角度0.5570.2720.4770.0103.41E-050.0113.3722.203
    4角度0.4690.3140.3870.0133.05E-050.0143.5562.325
    6角度0.3600.4020.2730.0052.63E-050.0133.5792.473
    12角度0.1340.7850.0270.3022.03E-050.0423.5586.769
    均匀取值3角度0.3050.7850.0920.1902.22E-040.0994.8165.007
    4角度0.3300.7850.1310.1371.97E-040.1145.2073.799
    6角度0.2690.7850.0570.2351.22E-040.0954.5386.253
    12角度0.1340.7850.0270.3022.04E-050.0423.5586.769
    下载: 导出CSV

    表  2  偏振图与原图的对比度与清晰度比较

    Table  2.   The comparison of contrast and clarity between the polarization image and the original image

    原图偏振图
    对比度0.197110.36039
    清晰度0.00913160.019933
    下载: 导出CSV
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