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Laser & Optoelectronics Progress, Volume. 58, Issue 22, 2215006(2021)

Compression Restoration Framework for Dense Point Cloud Model of Cultural Relics

Jiaojiao Kou1, Xiaoxue Chen1, Yuehua Yu1, Linqi Hai1, Pengbo Zhou2, Haibo Zhang1, and Guohua Geng1、*
Author Affiliations
  • 1School of Information Sciences and Technology, Northwest University, Xi'an, Shaanxi 710127, China
  • 2College of Arts and Media, Beijing Normal University, Beijing 100875, China
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    AbstractGet PDF(in Chinese)
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    Figures & Tables(7)
    3D point cloud dragon model division based on octree. (a) Undivided model; (b) model built by a complete octree; (c) model built by an incomplete octree

    Fig. 1. 3D point cloud dragon model division based on octree. (a) Undivided model; (b) model built by a complete octree; (c) model built by an incomplete octree

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    Flow chart of geometric signal reconstruction based on 3D cultural relic point cloud

    Fig. 2. Flow chart of geometric signal reconstruction based on 3D cultural relic point cloud

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    Reconstruction results of the Huren figurine point cloud model by different algorithms. (a) MP algorithm; (b) OMP algorithm; (c) StOMP algorithm; (d) ROMP algorithm

    Fig. 3. Reconstruction results of the Huren figurine point cloud model by different algorithms. (a) MP algorithm; (b) OMP algorithm; (c) StOMP algorithm; (d) ROMP algorithm

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    Reconstruction results of different algorithms on the point cloud model of the terracotta warriors head. (a) MP algorithm; (b) OMP algorithm; (c) StOMP algorithm; (d) ROMP algorithm

    Fig. 4. Reconstruction results of different algorithms on the point cloud model of the terracotta warriors head. (a) MP algorithm; (b) OMP algorithm; (c) StOMP algorithm; (d) ROMP algorithm

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    • Table 1. Numerical scale of 3D cultural relic point cloud model

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      Table 1. Numerical scale of 3D cultural relic point cloud model

      Cultural relic point cloud modelDirectionNumber of point cloudsNon-zero quantityNumber ofsampling pointsSensing matrix scaleSampling signal size
      Tang Sancai Huren figurinesXYZ10372810372810372831003100310012400124001240012400×10372812400×112400×112400×1
      Terracotta warrior headXYZ6240062400624001802180218027200720072007200×624007200×17200×17200×1

    • Table 2. Reconstruction results of the point cloud model of Tang Sancai Huren figurines by different algorithms

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      Table 2. Reconstruction results of the point cloud model of Tang Sancai Huren figurines by different algorithms

      Reconstruction algorithmMatrix sizeNumber of iterationsGiven errorReconstruction time /sMAE
      MP12400×103728100--896.4550.9227
      OMP12400×103728100--977.3510.6583
      StOMP12400×103728100--820.5360.5029
      ROMP12400×103728--10-2942.9230.5244

    • Table 3. Reconstruction results of different algorithms on the point cloud model of the terracotta warrior head

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      Table 3. Reconstruction results of different algorithms on the point cloud model of the terracotta warrior head

      Reconstruction algorithmMatrix sizeNumber of iterationsGiven errorReconstruction time /sMAE
      MP7200×62400100--371.5081.3462
      OMP7200×62400100--425.9120.5257
      StOMP7200×62400100--307.8670.3041
      ROMP7200×62400--10-2413.0430.3674
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    Jiaojiao Kou, Xiaoxue Chen, Yuehua Yu, Linqi Hai, Pengbo Zhou, Haibo Zhang, Guohua Geng. Compression Restoration Framework for Dense Point Cloud Model of Cultural Relics[J]. Laser & Optoelectronics Progress, 2021, 58(22): 2215006

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    Paper Information

    Category: Machine Vision

    Received: Jan. 6, 2021

    Accepted: Feb. 12, 2021

    Published Online: Nov. 10, 2021

    The Author Email: Guohua Geng (ghgeng12@163.com)

    DOI:10.3788/LOP202158.2215006

    Topics

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