Laser & Optoelectronics Progress, Volume. 62, Issue 8, 0811001(2025)

Focal Stack-Based Light Field Reconstruction and Measurement

Zhiting Zhang1,2、*, Yang Liu3, Sibo Huang1,3, Wanyu Gu1, Xiaoli Liu1, Xiang Peng1, and Zewei Cai1
Author Affiliations
  • 1Key Laboratory of Intelligent Optical Measurement and Detection of Shenzhen, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, Guangdong , China
  • 2Shenzhen Zhongting United Technology Co., Ltd., Shenzhen 518052, Guangdong , China
  • 3Smart Computational Imaging Laboratory, School of Electronic and Optical Engineering, Nanjing University of Science & Technology, Nanjing 210094, Jiangsu , China
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    Figures & Tables(9)
    Light field parameterization. (a) Two-plane model; (b) position-angle model
    Focal stack-based light field reconstruction. (a) Schematic diagram of object space light field reconstruction; (b) perspective projection schematic diagram of camera imaging
    Error distribution curves of iterative light field reconstruction in both object and image spaces
    Light field reconstruction in object and image spaces. (a) Multi-view images of Lim; (b)(c) enlarged views of center and bottom right frames and corresponding reconstruction error distribution in Fig. (a); (d) multi-view images of Lobj; (e)(f) enlarged views of center and center and bottom right frames and corresponding reconstruction error distribution in Fig. (d); (g)(h) cross-sectional distribution curves of center- and boundary-view images of reconstructed and reference light fields
    Light field reconstruction at various depth ranges. (a) Center- and boundary-view reconstruction error maps of Lim; (b) error distribution curves marked by lines in Fig. (a); (c) center- and boundary-view reconstruction error maps of Lobj; (d) error distribution curves marked by lines in Fig. (c)
    Camera calibration. (a) Target images in different orientations taken at specific focal position; (b) reprojection error distribution for camera calibration used the target image set
    Corrected images at different focal position, along with local enlarged views of image regions marked by dotted boxes
    Light field reconstruction and measurement. (a) Multi-view images of reconstructed light field; (b)(c) boundary- and center-view images marked by the upper left and center boxes in Fig. (a), along with local enlarged views; (d) metric depth map
    • Table 1. Light field reconstruction error

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      Table 1. Light field reconstruction error

      LimLobj
      Center viewMargin viewCenter viewMargin view
      RMSESSIMRMSESSIMRMSESSIMRMSESSIM
      Zfront0.00890.86620.01020.86730.03600.70360.04430.6751
      Zback0.01770.78850.01410.85870.03690.68610.02850.7196
      Zwhole0.00480.92100.00610.91230.10250.54540.08720.5418
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    Zhiting Zhang, Yang Liu, Sibo Huang, Wanyu Gu, Xiaoli Liu, Xiang Peng, Zewei Cai. Focal Stack-Based Light Field Reconstruction and Measurement[J]. Laser & Optoelectronics Progress, 2025, 62(8): 0811001

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    Paper Information

    Category: Imaging Systems

    Received: Aug. 2, 2024

    Accepted: Oct. 8, 2024

    Published Online: Apr. 3, 2025

    The Author Email:

    DOI:10.3788/LOP241790

    CSTR:32186.14.LOP241790

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