Infrared and Laser Engineering, Volume. 51, Issue 7, 20210646(2022)

Radiation calibration and correction in infrared light field imaging

Tengfei Wang1,2,3 and Yutian Fu1,2
Author Affiliations
  • 1Key Laboratory of Infrared System Detection and Imaging Technology, Chinese Academy of Science, Shanghai 200083, China
  • 2Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China
  • 3University of Chinese Academy of Sciences, Beijing 100049, China
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    Figures & Tables(9)
    Structure diagram of light field camera
    Schematic of refocusing
    Schematic diagram of radiation transmission. (a) Traditional imaging; (b) Light field imaging
    Infrared light field camera. (a) Object picture; (b) Structural drawing
    Original data of the blackbody experiment
    Comparison of light field imaging and traditional imaging at 10 min and 30 h. (a) Light field imaging at 10 min; (b) Light field data at 10 min; (c) Light field imaging at 30 h; (d) Light field data at 30 h
    Nonuniformity of light field data and light field imaging within 30 h
    • Table 1. Designed parameters of light field camera

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      Table 1. Designed parameters of light field camera

      Main lensMicrolens arraySensor
      Aperture/ mm Focal length/mm Aperture/ μm Focal length/μm Array number Pixel size/μm Pixel numbers
      408022545030×4125288×384
    • Table 2. Nonuniformity of light field imaging after correction

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      Table 2. Nonuniformity of light field imaging after correction

      Object distance10 min1 h5 h11 h20 h30 h
      1 m0.023%0.053%0.073%0.15%0.18%0.20%
      2 m0.024%0.064%0.087%0.20%0.22%0.25%
      3 m0.024%0.073%0.10%0.23%0.24%0.28%
      4 m0.023%0.069%0.0970.21%0.22%0.25%
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    Tengfei Wang, Yutian Fu. Radiation calibration and correction in infrared light field imaging[J]. Infrared and Laser Engineering, 2022, 51(7): 20210646

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    Paper Information

    Category: Infrared technology and application

    Received: Sep. 7, 2021

    Accepted: --

    Published Online: Dec. 20, 2022

    The Author Email:

    DOI:10.3788/IRLA20210646

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