Acta Photonica Sinica, Volume. 49, Issue 8, 0812001(2020)

In-flight Image Registration and Performance Evaluation for Directional Polarimetric Camera

Guang-feng XIANG1,2,3, Chan HUANG1,2,3, Bing-huan MENG1,3、*, Shuang LI1,3, Lin HAN1,3, Bi-hai TU1,2,3, and Jin HONG1,3
Author Affiliations
  • 1Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China
  • 2University of Science and Technology of China, Hefei 230026, China
  • 3Key Laboratory of Optical Calibration and Characterization, Chinese Academy of Sciences, Hefei 230031, China
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    High-precision image registration is the key to ensure the in-flight data validity of the Directional Polarimetric Camera (DPC). This paper introduces the polarization image registration method based on optical wedge and the multi-angle, multi-spectral image registration method based on earth reference grid. The error of the registration performance of the multi-angle and multi-spectral image of DPC are fully investigated, and the use of relative geometric calibration is applied to correct the error and improve the registration performance. To verify the effectiveness of this relative geometric calibration method, we compare the registration effects before and after error correction. The results reveal that the accuracies of DPC in flight multi-angle, multi-spectral and polarized image registration are better than 0.26 pixel, 0.14 pixel and 0.1 pixel respectively, which show an improvement of the registration performance.

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    Guang-feng XIANG, Chan HUANG, Bing-huan MENG, Shuang LI, Lin HAN, Bi-hai TU, Jin HONG. In-flight Image Registration and Performance Evaluation for Directional Polarimetric Camera[J]. Acta Photonica Sinica, 2020, 49(8): 0812001

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    Paper Information

    Category: Instrumentation, Measurement and Metrology

    Received: Apr. 17, 2020

    Accepted: Jul. 7, 2020

    Published Online: Nov. 27, 2020

    The Author Email: MENG Bing-huan (bhmeng@aiofm.ac.cn)

    DOI:10.3788/gzxb20204908.0812001

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