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大视场高像质简单光学系统的光学-算法协同设计

郑云达 黄玮 徐明飞 潘云 贾树强 张晓菲 卢勇男

郑云达, 黄玮, 徐明飞, 潘云, 贾树强, 张晓菲, 卢勇男. 大视场高像质简单光学系统的光学-算法协同设计[J]. 中国光学, 2019, 12(5): 1090-1099. doi: 10.3788/CO.20191205.1090
引用本文: 郑云达, 黄玮, 徐明飞, 潘云, 贾树强, 张晓菲, 卢勇男. 大视场高像质简单光学系统的光学-算法协同设计[J]. 中国光学, 2019, 12(5): 1090-1099. doi: 10.3788/CO.20191205.1090
ZHENG Yun-da, HUANG Wei, XU Ming-fei, PAN Yun, JIA Shu-qiang, ZHANG Xiao-fei, LU Yong-nan. Optical/algorithmic co-design of large-field high-quality simple optical system[J]. Chinese Optics, 2019, 12(5): 1090-1099. doi: 10.3788/CO.20191205.1090
Citation: ZHENG Yun-da, HUANG Wei, XU Ming-fei, PAN Yun, JIA Shu-qiang, ZHANG Xiao-fei, LU Yong-nan. Optical/algorithmic co-design of large-field high-quality simple optical system[J]. Chinese Optics, 2019, 12(5): 1090-1099. doi: 10.3788/CO.20191205.1090

大视场高像质简单光学系统的光学-算法协同设计

doi: 10.3788/CO.20191205.1090
基金项目: 应用光学国家重点实验室自主基金资助
详细信息
    作者简介:

    郑云达(1992-), 男, 吉林延边人, 博士, 2014年于中国科学技术大学获得学士学位, 主要从事图像复原及光学设计方面的研究。E-mail:yundazheng@foxmail.com

    黄玮(1965-), 男, 吉林长春人, 研究员, 博士生导师, 主要从事光学系统设计方面的研究。E-mail:huangw@ciomp.ac.cn

  • 中图分类号: TP394.1;TH691.9

Optical/algorithmic co-design of large-field high-quality simple optical system

Funds: Supported by the State Key Laboratory of Applied Optics
More Information
  • 摘要: 为了实现高像质相机低成本、小型化的需求,本文提出了一种大视场简单光学系统的光学-算法协同设计方法,并通过图像复原算法校正简单光学系统的残余像差。首先,针对大视场光学系统,对空间变化的交叉通道去卷积算法进行改进,加入倍率色差校正,使图像复原算法可显著去除色差的影响。然后,在光学设计过程中,放开色差的约束,并专注优化绿色通道的像质,使其成像锐利,在后期交叉通道去卷积算法中有助于红、蓝两通道图像复原。利用该方法设计了一个由两片同种材料的镜片构成的大视场简单光学系统。系统焦距为50 mm,全视场为46°,F数为5.6,探测器分辨率为1 000万像素。实验结果表明:本文设计的两片镜、大视场简单光学系统的成像质量可媲美三片式库克镜头,明显优于纯图像复原的结果。本文方法实现了大视场简单光学系统的设计,并能够通过系统最终获得高分辨率、高像质图像。
  • 图  1  空间变化方案示意图

    Figure  1.  Diagram of the space-variant strategy

    图  2  图片分块重叠部分的拼接示意图

    Figure  2.  Diagram of stitching method of image overlapping parts

    图  3  交叉通道先验示意图

    Figure  3.  Scanline diagrams of cross-channel prior

    图  4  简单光学系统结构图

    Figure  4.  Layout of simple optical system

    图  5  简单光学系统设计结果

    Figure  5.  Designed results of simple optical system

    图  6  简单光学系统的空间变化PSF

    Figure  6.  Space-variant PSFs of the simple optical system

    图  7  图像复原结果

    Figure  7.  Image restoration results

    图  8  常规设计的两片镜系统

    Figure  8.  Conventional designed two-lens optical system

    图  9  鲜花图像复原结果对比s

    Figure  9.  Comparison of restoration results of a flower image

    图  10  校园图像复原结果对比

    Figure  10.  Comparison of restoration results of a campus image

    图  11  库克三片式镜头

    Figure  11.  Cooke triplet lens

    表  1  简单光学系统的镜头参数

    Table  1.   Lens data of the simple optical system

    Surface Radius Thickness Glass Semi-Aperture
    Object Infinity Infinity
    1 7.872 8 1.71 HK9L_CDGM 6.30
    2 6.582 4 5.57 5.38
    stop Infinity 4.28 4.28
    4 -33.333 4 10.00 HK9L_CDGM 6.28
    5 -13.943 6 56.45 9.10
    Image Infinity 0 20.21
    下载: 导出CSV

    表  2  BRISQUE评价结果对比

    Table  2.   Comparison of BRISQUE scores

    Flowers Campus
    Ground truth 17.079 6 21.843 0
    Krishnan et al. 51.551 5 49.697 0
    Heide et al. 44.991 0 44.785 0
    Ours 30.548 2 39.275 0
    Cooke lens 29.490 0 36.888 0
    下载: 导出CSV

    表  3  NIQE评价结果对比

    Table  3.   Comparison of NIQE scores

    Flowers Campus
    Ground truth 3.238 0 3.333 8
    Krishnan et al. 6.612 2 6.527 4
    Heide et al. 6.059 0 5.825 9
    Ours 4.838 0 4.577 5
    Cooke lens 4.200 0 4.413 1
    下载: 导出CSV
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出版历程
  • 收稿日期:  2018-12-28
  • 修回日期:  2019-02-26
  • 刊出日期:  2019-10-01

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