• Laser & Optoelectronics Progress
  • Vol. 61, Issue 10, 1011006 (2024)
Xinjun Zhu1、*, Ruiqun Sun2, Linpeng Hou2, Haichuan Zhao1, Limei Song1、2, and Hongyi Wang1
Author Affiliations
  • 1School of Artificial Intelligence, Tiangong University, Tianjin 300387, China
  • 2School of Control Science and Engineering, Tiangong University, Tianjin 300387, China
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    DOI: 10.3788/LOP232066 Cite this Article Set citation alerts
    Xinjun Zhu, Ruiqun Sun, Linpeng Hou, Haichuan Zhao, Limei Song, Hongyi Wang. Single-Frequency Fringe Structured Light 3D Measurement Based on Regional Stereo Matching[J]. Laser & Optoelectronics Progress, 2024, 61(10): 1011006 Copy Citation Text show less

    Abstract

    The traditional quality guided phase unwrapping method cannot correctly perform phase unwrapping for multiple objects. To overcome this problem, this study proposes a stereo quality guided phase unwrapping method based on region segmentation. Based on the phase edge of the isolated object, the wrapped phase is divided into several regions, and a stereo matching algorithm establishes the initial point of multi-view binocular phase unwrapping for each isolated region. Furthermore, the quality guided phase unwrapping algorithm realizes the phase unwrapping of multi-view isolated object. A single-frequency fringe structured light three dimensional (3D) measurement based on regional binocular stereo unwrapped phase matching is proposed, which achieves 3D reconstruction of multiple isolated objects under a single-frequency wrapped phase. The experimental results show that the proposed method can achieve a 3D reconstruction of multiple isolated objects in motion. The mean absolute error of diameter for the reconstruction of a standard sphere under four-step phase shifting and single-frame conditions is 0.0135 mm and 0.0347 mm, respectively.
    φL(x,y)=φL(x,y), BL(x,y)σ0,   BL(x,y)<σφR(x,y)=φR(x,y), BR(x,y)σ0,   BR(x,y)<σ
    φB=1, BR(x,y)σ0, BR(x,y)<σ
    (x¯n,y¯Rn)=round(xnRup+xnRdown)/2,ynRleft
    φR(xn,yRn)-φR(xn,yRn-1)>1.5π
    (x¯n,y¯Ln)=roundxnRup+xnRdown/2,yRn-1+d
    φL(xn,yLn)-φL(xn,yLn-1)>1.5π
    M(x,y)=1dx(x,y)+dy(x,y)
    SSD(x,y+dn)=i=-hhj=-qqΦL(x+i,y+j)-ΦR(x+i,y+j+dn)2
    Ds(p)=Dint(p)-CSSD(p,d+1)-CSSD(p,d-1)2CSSD(p,d+1)+CSSD(p,d-1)-2CSSD(p,d)
    Xinjun Zhu, Ruiqun Sun, Linpeng Hou, Haichuan Zhao, Limei Song, Hongyi Wang. Single-Frequency Fringe Structured Light 3D Measurement Based on Regional Stereo Matching[J]. Laser & Optoelectronics Progress, 2024, 61(10): 1011006
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