Infrared and Laser Engineering, Volume. 52, Issue 8, 20230385(2023)

Projection chromatic aberration modeling and correction of phase measurement profilometry based on phase target

Yuzhuo Zhang, Lulu Jia, Nan Gao, Zhaozong Meng, and Zonghua Zhang
Author Affiliations
  • School of Mechanical Engineering, Hebei University of Technology, Tianjin 300130, China
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    Figures & Tables(16)
    Imaging model of projector lens
    Chromatic aberration diagram. (a) Ideal chromatic aberration-free; (b) Longitudinal chromatic aberration; (c) Lateral chromatic aberration
    Schematic diagram of system structure
    Flowchart of projector chromatic aberration modeling
    Schematic diagram of chromatic aberration correction of projector
    System diagram of projector chromatic aberration modeling and correction experiment
    Chromatic aberration vector diagram of projector blue and green channels
    Chromatic aberration vector diagram of projector red and green channels
    Pre-compensated fringes. (a) Horizontal blue channel pre-compensated fringe; (b) Horizontal red channel pre-compensation fringe; (c) Vertical blue channel pre-compensation fringe; (d) Vertical red channel pre-compensation fringe
    Chromatic aberration vector comparison between primary projection and reprojection. (a) Blue and green channels; (b) Red and green channels
    Chromatic aberration vector diagram of projector blue and green channels
    Chromatic aberration vector diagram of projector red and green channels
    3D topography of steps before and after chromatic aberration correction of projector. (a) 3D morphology of the step before correction; (b) 3D morphology of the step after correction
    3D topography of step before and after chromatic aberration correction of PRO4500 projector. (a) 3D morphology of the step before correction; (b) 3D morphology of the step after correction
    • Table 1. Comparison of fitting results

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      Table 1. Comparison of fitting results

      $ {\varphi }_{pro\_h\_g} $R-square RMSEComplexity
      Poly11:0.99981.3860Simple
      Poly22:10.5930Moderate
      Poly33:10.4819Complex
    • Table 2. Measurement value of step spacing before and after correcting projector chromatic aberration (Unit: mm)

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      Table 2. Measurement value of step spacing before and after correcting projector chromatic aberration (Unit: mm)

      Projector modelStep spacingStandard valueBefore correctionAfter correctionPre-correction errorCorrected error
      CP270Step surface 2-3 13.25813.73213.3080.4740.050
      Step surface 3-4 18.42217.91818.447−0.5040.025
      PRO4500Step surface 2-3 13.25813.31713.2200.059−0.038
      Step surface 3-4 18.42218.46518.4110.043−0.011
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    Yuzhuo Zhang, Lulu Jia, Nan Gao, Zhaozong Meng, Zonghua Zhang. Projection chromatic aberration modeling and correction of phase measurement profilometry based on phase target[J]. Infrared and Laser Engineering, 2023, 52(8): 20230385

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    Paper Information

    Category: Photoelectric measurement

    Received: Jun. 28, 2023

    Accepted: --

    Published Online: Oct. 19, 2023

    The Author Email:

    DOI:10.3788/IRLA20230385

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