• Acta Photonica Sinica
  • Vol. 51, Issue 4, 0412005 (2022)
Jing ZOU, Yiming JIANG, Xiaodong HU, and Jintao ZHAO*
Author Affiliations
  • School of Precision Instrument and Opto-electronics Engineering,Tianjin University,Tianjin 300072,China
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    DOI: 10.3788/gzxb20225104.0412005 Cite this Article
    Jing ZOU, Yiming JIANG, Xiaodong HU, Jintao ZHAO. Geometric Parameters Calibration Method for Optically CCD-coupled CT System[J]. Acta Photonica Sinica, 2022, 51(4): 0412005 Copy Citation Text show less
    The structure diagram of CCD-coupled CT system
    Fig. 1. The structure diagram of CCD-coupled CT system
    Diagram of coordinate system establishment
    Fig. 2. Diagram of coordinate system establishment
    Projection diagram
    Fig. 3. Projection diagram
    Experimental device
    Fig. 4. Experimental device
    Extraction center
    Fig. 5. Extraction center
    Comparison of bamboo fiber reconstruction results
    Fig. 6. Comparison of bamboo fiber reconstruction results
    ParametersValue
    SOD/mm5
    SDD/mm10
    Target power/W0.8
    Current/μA400
    Exposure time/s15
    Frame number360
    Table 1. Experiment condition
    ParametersValue
    η/(°)1.32
    R/mm4.443
    D/mm11.824
    u0/μm81
    v0/μm-165
    Table 2. Calibration results of the parameters
    EOG
    Before calibration8.04×108
    After calibration9.57×108
    Table 3. Quantitative evaluation of EOG
    Jing ZOU, Yiming JIANG, Xiaodong HU, Jintao ZHAO. Geometric Parameters Calibration Method for Optically CCD-coupled CT System[J]. Acta Photonica Sinica, 2022, 51(4): 0412005
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