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Acta Optica Sinica, Volume. 39, Issue 12, 1228005(2019)

Correction Method for Frame-Transfer Blurring Effect of Spaceborne Polarization Camera

Jianwen Weng1,2, Yinlin Yuan1、*, Xiaobing Zheng1, Qing Kang1, Bihai Tu1, Jianjun Li1, and Jin Hong1
Author Affiliations
  • 1Key Laboratory of Optical Calibration and Characterization, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei, Anhui 230031, China
  • 2University of Science and Technology of China, Hefei, Anhui 230026, China
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    References (15)
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    Figures & Tables(13)
    Two types of frame-transfer blurring effect of DPC. (a) Smear; (b) response difference between upper and lower parts

    Fig. 1. Two types of frame-transfer blurring effect of DPC. (a) Smear; (b) response difference between upper and lower parts

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    Correction procedure of frame-transfer blurring effect for on-orbit imaging data of DPC

    Fig. 2. Correction procedure of frame-transfer blurring effect for on-orbit imaging data of DPC

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    Results of frame-transfer blurring effect corrected by dark line method with correction sequence of smear type first and then response-difference type. (a) Original imaging of integral sphere; (b) correction of smear frame-transfer blurring effect; (c) correction of response-difference frame transfer blurring effect

    Fig. 3. Results of frame-transfer blurring effect corrected by dark line method with correction sequence of smear type first and then response-difference type. (a) Original imaging of integral sphere; (b) correction of smear frame-transfer blurring effect; (c) correction of response-difference frame transfer blurring effect

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    Results of frame-transfer blurring effect corrected by dark line method with correction sequence of response-difference type first and then smear type. (a) Correction of response-difference frame-transfer blurring effect; (b) correction of smear frame-transfer blurring effect

    Fig. 4. Results of frame-transfer blurring effect corrected by dark line method with correction sequence of response-difference type first and then smear type. (a) Correction of response-difference frame-transfer blurring effect; (b) correction of smear frame-transfer blurring effect

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    Results of frame-transfer blurring effect corrected by matrix method with correction sequence of smear type first and then response-difference type. (a) Correction of smear frame-transfer blurring effect; (b) correction of response-difference frame transfer blurring effect

    Fig. 5. Results of frame-transfer blurring effect corrected by matrix method with correction sequence of smear type first and then response-difference type. (a) Correction of smear frame-transfer blurring effect; (b) correction of response-difference frame transfer blurring effect

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    Results of frame-transfer blurring effect corrected by matrix method with correction sequence of response-difference type first and then smear type. (a) Correction of response-difference frame-transfer blurring effect; (b) correction of smear frame-transfer blurring effect

    Fig. 6. Results of frame-transfer blurring effect corrected by matrix method with correction sequence of response-difference type first and then smear type. (a) Correction of response-difference frame-transfer blurring effect; (b) correction of smear frame-transfer blurring effect

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    Correction result of response-difference frame-transfer blurring effect. (a) Imaging mosaic of integral sphere in field-of-view; (b) correction of response-difference frame-transfer blurring effect

    Fig. 7. Correction result of response-difference frame-transfer blurring effect. (a) Imaging mosaic of integral sphere in field-of-view; (b) correction of response-difference frame-transfer blurring effect

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    Comparison and verification of correction accuracy of smear frame-transfer blurring effect for unsaturated imaging data. (a) Original smear frame-transfer blurring effect; (b) correction by dark line mothed; (c) correction by matrix method; (d) gray-value curve of line 210 in spot

    Fig. 8. Comparison and verification of correction accuracy of smear frame-transfer blurring effect for unsaturated imaging data. (a) Original smear frame-transfer blurring effect; (b) correction by dark line mothed; (c) correction by matrix method; (d) gray-value curve of line 210 in spot

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    Comparison and verification of correction accuracy of smear frame-transfer blurring effect for saturated imaging data. (a) Original smear frame-transfer blurring effect; (b) correction by dark line mothed; (c) correction by matrix mothed; (d) gray-value curve of line 380 beneath spot

    Fig. 9. Comparison and verification of correction accuracy of smear frame-transfer blurring effect for saturated imaging data. (a) Original smear frame-transfer blurring effect; (b) correction by dark line mothed; (c) correction by matrix mothed; (d) gray-value curve of line 380 beneath spot

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    Polarization images before and after correction of frame-transfer blurring effect. (a) Before correction; (b) after correction

    Fig. 10. Polarization images before and after correction of frame-transfer blurring effect. (a) Before correction; (b) after correction

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    Variation of relative value of polarization degree along orbit before and after correction

    Fig. 11. Variation of relative value of polarization degree along orbit before and after correction

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    • Table 1. Correction result of polarization degree in non-flare region before and after correction of frame-transfer blurring effect of on-orbit DPC

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      Table 1. Correction result of polarization degree in non-flare region before and after correction of frame-transfer blurring effect of on-orbit DPC

      Polarization degree /%Polarization degree deviation /%
      Before correctionAfter correction
      13.0012.660.34

    • Table 2. Correction result of polarization degree in flare region before and after correction of frame-transfer blurring effect of on-orbit DPC

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      Table 2. Correction result of polarization degree in flare region before and after correction of frame-transfer blurring effect of on-orbit DPC

      Correction stateTheoretical polarization degree /%Actual polarization degree /%Polarization degree deviation /%
      Before correction12.0819.367.28
      After correction12.0811.650.43
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    Jianwen Weng, Yinlin Yuan, Xiaobing Zheng, Qing Kang, Bihai Tu, Jianjun Li, Jin Hong. Correction Method for Frame-Transfer Blurring Effect of Spaceborne Polarization Camera[J]. Acta Optica Sinica, 2019, 39(12): 1228005

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    Paper Information

    Category: Remote Sensing and Sensors

    Received: Jun. 24, 2019

    Accepted: Sep. 2, 2019

    Published Online: Dec. 6, 2019

    The Author Email: Yuan Yinlin (ylyuan@aiofm.ac.cn)

    DOI:10.3788/AOS201939.1228005

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology