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Acta Optica Sinica, Volume. 43, Issue 7, 0734001(2023)

Automatic Spatial Distance Measurement Method for Fuel Particles Based on X-Ray Micro-CT

Xiaogang Zhang1, Lize Zhang2, Dongbao Yu1, Juan Xu1, Yanping Lu2、**, and Kuan Shen2、*
Author Affiliations
  • 1China North Nuclear Fuel Co. Ltd., Baotou 014035, Inner Mongolia , China
  • 2Industrial CT Non-destructive Testing Engineering Research Center of the Ministry of Education, Chongqing University, Chongqing 400044, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (13)
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    References (21)
    Cited By (1)
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    Figures & Tables(13)
    Serial slice images

    Fig. 1. Serial slice images

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    Neighborhoods of voxels in two-dimensional and three-dimensional data. (a) 8-neighborhood diagram; (b) 26-neighborhood diagram

    Fig. 2. Neighborhoods of voxels in two-dimensional and three-dimensional data. (a) 8-neighborhood diagram; (b) 26-neighborhood diagram

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    Flowchart of 3D region growing algorithm

    Fig. 3. Flowchart of 3D region growing algorithm

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    Flowchart of nearest centroid calculation

    Fig. 4. Flowchart of nearest centroid calculation

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    Spatial distribution map of simulated fuel particles

    Fig. 5. Spatial distribution map of simulated fuel particles

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    Standard balls and three-dimensional CT image. (a) Standard balls; (b) three-dimensional CT image

    Fig. 6. Standard balls and three-dimensional CT image. (a) Standard balls; (b) three-dimensional CT image

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    Comparison chart of image preprocessing. (a)(b) Original slice images; (c)(d) slice images after preprocessing; (e)-(h) three-dimensional grayscale distribution maps

    Fig. 7. Comparison chart of image preprocessing. (a)(b) Original slice images; (c)(d) slice images after preprocessing; (e)-(h) three-dimensional grayscale distribution maps

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    Segmentation image of standard balls

    Fig. 8. Segmentation image of standard balls

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    Three-dimensional CT image of fuel element sample. (a) Three-dimensional CT image of sample, (b) distribution of fuel particles; (c) segmented local fuel particles

    Fig. 9. Three-dimensional CT image of fuel element sample. (a) Three-dimensional CT image of sample, (b) distribution of fuel particles; (c) segmented local fuel particles

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    • Table 1. Coordinate parameters of simulated fuel particles

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      Table 1. Coordinate parameters of simulated fuel particles

      Particle No.Coordinate of X-axis /pixelCoordinate of Y-axis /pixelCoordinate of Z-axis /pixelRadius /pixel
      150050050025
      220030040025
      310010090025
      490047031025
      515090030025
      695583249825
      791273287025
      865312321625
      945678596125
      109004912825
      1167825968130
      1223969448030
      1316823114230
      1491289189930
      1548979481530
      1612379813530
      1788932026130
      1841858438630
      1967961723930
      2041223178130

    • Table 2. Measurement results of nearest centroids

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      Table 2. Measurement results of nearest centroids

      Particle No.CoordinateNearest particle No.Coordinate of nearest particleDistance of centroids /pixel
      1（500 pixel，500 pixel，500 pixel）17（889 pixel，320 pixel，261 pixel）490.75
      2（200 pixel，300 pixel，400 pixel）13（168 pixel，231 pixel，142 pixel）268.98
      3（100 pixel，100 pixel，900 pixel）20（412 pixel，231 pixel，781 pixel）358.70
      4（900 pixel，470 pixel，310 pixel）17（889 pixel，320 pixel，261 pixel）158.18
      5（150 pixel，900 pixel，300 pixel）16（123 pixel，798 pixel，135 pixel）195.85
      6（955 pixel，832 pixel，498 pixel）7（912 pixel，732 pixel，870 pixel）387.60
      7（912 pixel，732 pixel，870 pixel）14（912 pixel，891 pixel，899 pixel）161.62
      8（653 pixel，123 pixel，216 pixel）10（900 pixel，49 pixel，128 pixel）272.45
      9（456 pixel，785 pixel，961 pixel）15（489 pixel，794 pixel，815 pixel）149.95
      10（900 pixel，49 pixel，128 pixel）8（653 pixel，123 pixel，216 pixel）272.45
      11（678 pixel，259 pixel，681 pixel）20（412 pixel，231 pixel，781 pixel）285.55
      12（239 pixel，694 pixel，480 pixel）18（418 pixel，584 pixel，386 pixel）230.17
      13（168 pixel，231 pixel，142 pixel）2（200 pixel，300 pixel，400 pixel）268.98
      14（912 pixel，891 pixel，899 pixel）7（912 pixel，732 pixel，870 pixel）161.62
      15（489 pixel，794 pixel，815 pixel）9（456 pixel，785 pixel，961 pixel）826.71
      16（123 pixel，798 pixel，135 pixel）5（150 pixel，900 pixel，300 pixel）195.85
      17（889 pixel，320 pixel，261 pixel）4（900 pixel，470 pixel，310 pixel）158.18
      18（418 pixel，584 pixel，386 pixel）1（500 pixel，500 pixel，500 pixel）163.63
      19（679 pixel，617 pixel，239 pixel）4（900 pixel，470 pixel，310 pixel）274.76
      20（412 pixel，231 pixel，781 pixel）11（678 pixel，259 pixel，681 pixel）285.55

    • Table 3. Measurement results of standard balls

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      Table 3. Measurement results of standard balls

      Ball No.Nominal value of ball diameter /μmMeasured value of ball diameter /μmCoordinate of centroidNearest ball No.Centroid coordinate of nearest ballDistance of centroids /μm
      120001998（634 pixel，234 pixel，260 pixel）2（460 pixel，688 pixel，212 pixel）3835.2
      220001999（460 pixel，688 pixel，212 pixel）3（762 pixel，834 pixel，200 pixel）2685.2
      320001996（762 pixel，834 pixel，200 pixel）2（460 pixel，688 pixel，212 pixel）2685.2
      420001996（1166 pixel，690 pixel，242 pixel）3（762 pixel，834 pixel，200 pixel）3447.6
      550004994（1052 pixel，756 pixel，686 pixel）4（1166 pixel，690 pixel，242 pixel）3705.0
      650004993（580 pixel，936 pixel，1082 pixel）5（1052 pixel，756 pixel，686 pixel）5135.0

    • Table 4. Measurement results of fuel particles

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      Table 4. Measurement results of fuel particles

      Particle No.Coordinate of centroidNearest particle No.Centroid coordinate of nearest particleDistance of centroids /pixelSpatial distance of particles /μm
      1（476 pixel，193 pixel，210 pixel）4（465 pixel，170 pixel，299 pixel）92.581008.2
      2（565 pixel，110 pixel，259 pixel）4（465 pixel，170 pixel，299 pixel）123.291342.6
      3（595 pixel，248 pixel，269 pixel）5（606 pixel，210 pixel，184 pixel）93.751021.0
      4（465 pixel，170 pixel，299 pixel）1（476 pixel，193 pixel，210 pixel）92.581008.2
      5（606 pixel，210 pixel，184 pixel）3（595 pixel，248 pixel，269 pixel）93.751021.0
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    Xiaogang Zhang, Lize Zhang, Dongbao Yu, Juan Xu, Yanping Lu, Kuan Shen. Automatic Spatial Distance Measurement Method for Fuel Particles Based on X-Ray Micro-CT[J]. Acta Optica Sinica, 2023, 43(7): 0734001

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    Paper Information

    Category: X-Ray Optics

    Received: Aug. 4, 2022

    Accepted: Nov. 25, 2022

    Published Online: Apr. 6, 2023

    The Author Email: Lu Yanping (luyp_cqu@126.com), Shen Kuan (iamsk@163.com)

    DOI:10.3788/AOS221566

    Topics

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