Acta Photonica Sinica, Volume. 49, Issue 2, 0228002(2020)

Calibration Method of Smear in the Sun Glint Region of Directional Polarization Camera Remote Sensing Images

Jian-wen WENG1,2, Yin-lin YUAN1、*, Qing KANG1, Bi-hai TU1,2, Mao-peng XIA1, Dong HUANG1,2, Jin HONG1, and Xiao-bing ZHENG1
Author Affiliations
  • 1Key Laboratory of Optical Calibration and Characterization, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China
  • 2University of Science and Technology of China, Hefei 230026, China
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    Figures & Tables(16)
    Structure diagram of DPC imaging system
    The multi-angle observation principle diagram of DPC
    The channel 15 image under DPC land working mode
    Frame transfer CCD image sensor generates light leakage smear diagram
    DPC image of integrating sphere when 64 lights are turned on in integrating sphere
    Research on the smear correction method of DPC remote sensing image
    DPC成像区暗行Dark line in DPC imaging area
    单列遗留拖尾特性Single column legacy smear feature
    不含饱和像元时漏光拖尾校正结果Correction results of light leakage smear without saturated pixels
    含饱和像元时漏光拖尾校正结果Correction results of light leakage smear with saturated pixels
    饱和外推法可行性验证Feasibility verification of saturated extrapolation method
    两种方法恢复饱和像元结果Results comparison of the two methods to restore saturated pixels
    饱和像元遗留拖尾校正模型校正图 11光斑下方遗留拖尾后结果Saturated pixel legacy smear correction model correct legacy smear under figure 11 light spot
    拖尾校正前后像元响应灰度值等高线图Gray value contour map of pixel response before and after smear correction
    像元位置序号从(280,480)至(300,510)的局部等高线图Local contour map of pixel position from (280, 480) to (300, 510)
    • Table 1. Quantitative evaluation of smear correction effect

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      Table 1. Quantitative evaluation of smear correction effect

      Before correctionAfter correction
      Gray variance/×106202.692.32
      Average gradient/×10-15.082.26
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    Jian-wen WENG, Yin-lin YUAN, Qing KANG, Bi-hai TU, Mao-peng XIA, Dong HUANG, Jin HONG, Xiao-bing ZHENG. Calibration Method of Smear in the Sun Glint Region of Directional Polarization Camera Remote Sensing Images[J]. Acta Photonica Sinica, 2020, 49(2): 0228002

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    Paper Information

    Received: Sep. 24, 2019

    Accepted: Dec. 2, 2019

    Published Online: Mar. 19, 2020

    The Author Email: YUAN Yin-lin (ylyuan@aiofm.ac.cn)

    DOI:10.3788/gzxb20204902.0228002

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