Acta Photonica Sinica, Volume. 51, Issue 3, 0311004(2022)

Study on Correction Method of Local Geometric Distortion in Projection Phantom Imaging

Zhao YANG... Pengcheng YANG*, Mengmeng ZHANG, Yuan XIAO and Hui LIU |Show fewer author(s)
Author Affiliations
  • School of Mechanical and Electrical Engineering,Xi'an Polytechnic University,Xi'an 710048,China
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    Figures & Tables(22)
    Imaging optical model
    Schematic of projection distortion correction
    Distortion correction flow chart
    Suspension test
    Projector self-calibration
    Grid marking
    Segmentation image
    Diagram of perspective and coordinate system modeling
    Schematic of fluoroscopic imaging correction
    Projector cache image
    Single plane image correction
    Correction data of single projection image
    Multiplane image correction
    Experimental test chart
    Graph edge length data line chart
    Graph angle data line chart
    • Table 1. The projection correction size of single projection image (mm)

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      Table 1. The projection correction size of single projection image (mm)

      Projection areaSide length 1Side length 2Side length 3Side length 4
      Before calibration41294030
      After correction32303130
    • Table 2. The correction projection angle of single projection image

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      Table 2. The correction projection angle of single projection image

      Projection areaInside corner 1Inside corner 2Inside corner 3Inside corner 4
      Before calibration94°85°93°88°
      After correction91°90°91°88°
    • Table 3. Image projection size before correction (mm)

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      Table 3. Image projection size before correction (mm)

      Projection areaSide length 1Side length 2Side length 3Side length 4
      Square A65426443
      Square B85458444
      Square C63436342
      Square D50425041
    • Table 4. Image projection angle before correction

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      Table 4. Image projection angle before correction

      Projection areaInside corner 1Inside corner 2Inside corner 3Inside corner 4
      Square A80°100°80°100°
      Square B92°90°88°90°
      Square C102°78°102°78°
      Square D89°91°88°92°
    • Table 5. Image projection size after correction (mm)

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      Table 5. Image projection size after correction (mm)

      Projection areaSide length 1Side length 2Side length 3Side length 4
      Square A43444443
      Square B45444445
      Square C44464545
      Square D45434344
    • Table 6. Image projection inner angle after correction

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      Table 6. Image projection inner angle after correction

      Projection areaInside corner 1Inside corner 2Inside corner 3Inside corner 4
      Square A92°91°89°88°
      Square B89°89°92°90°
      Square C88°92°89°91°
      Square D90°90°92°88°
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    Zhao YANG, Pengcheng YANG, Mengmeng ZHANG, Yuan XIAO, Hui LIU. Study on Correction Method of Local Geometric Distortion in Projection Phantom Imaging[J]. Acta Photonica Sinica, 2022, 51(3): 0311004

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    Paper Information

    Category:

    Received: Jul. 9, 2021

    Accepted: Oct. 15, 2021

    Published Online: Apr. 8, 2022

    The Author Email: YANG Pengcheng (yangpengcheng@xpu.edu.cn)

    DOI:10.3788/gzxb20225103.0311004

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