Journal of Applied Optics, Volume. 44, Issue 1, 168(2023)

Extreme luminance measurement method based on high dynamic range imaging

Yan QIN*... Ruixing LIU, Zhen KANG, Hongguang LI, Jingzhu GONG, Yu'nan SUN and Juncheng ZHAO |Show fewer author(s)
Author Affiliations
  • Xi'an Institute of Applied Optics, Xi'an 710065, China
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    Figures & Tables(10)
    Luminance calibration experiment
    Low dynamic range images by camera
    Color blocks selected for parameter calibration
    Fitting diagram of R, G, B tristimulus values and Rgv, Ggv, Bgv gray values
    Measurement process of high dynamic range image measurement system
    • Table 1. Main performance parameters of camera and lens

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      Table 1. Main performance parameters of camera and lens

      尼康D5300+腾龙18-200VC镜头
      相机性能外形尺寸125 mm×98 mm×76 mm产品质量480 g
      传感器类型CMOS传感器尺寸23.5 mm×15.6 mm
      有效像素2 416万最大像素2 478万
      曝光模式自动、手动白平衡模式自动、预设
      快门速度1/4 000 s~30 s,可以1/3 eV或1/2 eV为步长调校
      曝光补偿可以1/3 eV或1/2 eV为步长在-5 eV~5 eV之间调校
      ISO感光度ISO 100~12 800,可以1/3 eV为步长调校
      电池类型锂电池(EN-EL14a)续航能力600张(CIPA标准)
      镜头性能镜头长度96.7 mm~102 mm镜头质量460 g
      镜头直径68 mm最大放大倍率1/3.7倍
      焦距范围18 mm~200 mm等效焦距27 mm~300 mm
      光圈范围F3.5~F22 防抖性能光学防抖
    • Table 2. Luminance and chroma information of selected color blocks cd/m2

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      Table 2. Luminance and chroma information of selected color blocks cd/m2

      色块1色块2色块3色块4色块5色块6色块7色块8色块9色块10色块11色块12
      亮度13.674.6710.287.925.2912.387.8319.487.4324.067.292.66
      X13.703.837.698.947.089.754.7516.886.0423.016.952.53
      Y13.674.6710.287.925.2912.387.8319.487.4324.067.292.66
      Z10.202.258.072.384.273.132.562.5719.9325.567.602.74
    • Table 3. (Rgv, Ggv, Bgv) gray value of selected color blocks

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      Table 3. (Rgv, Ggv, Bgv) gray value of selected color blocks

      RgvGgvBgv
      色块10.001770.001520.00118
      色块20.000210.000210.00009
      色块30.000740.001140.00078
      色块40.001550.000980.00038
      色块50.001530.000640.00069
      色块60.001150.001180.00027
      色块70.000360.000740.00019
      色块80.003090.002980.00002
      色块90.000490.003060.00306
      色块100.003060.003060.00306
      色块110.000540.000520.00050
      色块120.000080.000070.00007
    • Table 4. Results of X, Y, Z converting to R, G, B

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      Table 4. Results of X, Y, Z converting to R, G, B

      XYZRGB
      色块113.7013.6710.2016.2411.9610.18
      色块23.834.672.254.014.592.22
      色块37.6910.288.075.8710.328.04
      色块48.947.922.3813.116.592.34
      色块57.085.294.2710.373.694.28
      色块69.7512.383.1310.7512.503.04
      色块74.757.832.563.238.612.50
      色块816.8819.482.5721.4518.992.41
      色块96.047.4319.93-0.016.5320.07
      色块1023.0124.0625.5623.0621.2525.60
      色块116.957.297.606.986.467.61
      色块122.532.662.742.552.372.74
    • Table 5. High dynamic range luminance test location results in road environment

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      Table 5. High dynamic range luminance test location results in road environment

      测量地点测量设备亮度值/(cd/m2相对误差/%
      神舟三路与航 天中路交叉路口 D5300CS-20001018910423−2.2
      神州大道辅路D5300CS-20005.135.26−2.5
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    Yan QIN, Ruixing LIU, Zhen KANG, Hongguang LI, Jingzhu GONG, Yu'nan SUN, Juncheng ZHAO. Extreme luminance measurement method based on high dynamic range imaging[J]. Journal of Applied Optics, 2023, 44(1): 168

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    Paper Information

    Category: Research Articles

    Received: Jul. 25, 2022

    Accepted: --

    Published Online: Feb. 22, 2023

    The Author Email:

    DOI:10.5768/JAO202344.0103008

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