Laser & Optoelectronics Progress, Volume. 57, Issue 23, 231201(2020)

Fast Three-Dimensional Measurement Based on Three Channel Binary Fringe Defocused Projection

Xin Zhang1,2, Shaoyan Gai1,2、*, and Feipeng Da1,2
Author Affiliations
  • 1School of Automation, Southeast University, Nanjing, Jiangsu 210096, China
  • 2Key Laboratory of Measurement and Control of CSE, Ministry of Education, Southeast University, Nanjing, Jiangsu 210096, China
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    Figures & Tables(13)
    Flow chart of color fringe projection. (a) Traditional color fringe projection; (b) color defocusing binary projection
    Binary fringe image obtained by dither modulation
    Complete flow of a single measurement frame
    Installation diagram of the experimental system
    Spectral response graph of the camera sensor
    Decomposed image of three channels. (a) Color stripe image on white plate; (b)--(d) stripe image of RGB channel on white plate; (e) color stripe image on doll; (f)--(h) RGB channel stripe image of doll
    Sine of fringes obtained by different methods. (a) 8 bit projection; (b) 8 bit projection with black-and-white camera auxiliary decoupling; (c) 2 bit projection; (d) 2 bit projection with black-and-white camera auxiliary decoupling
    Measurement results of our method
    Height and standard value of the 34th row of the 3D data. (a) 8 bit projection; (b) 8 bit projection with black-and-white camera auxiliary decoupling; (c) 2 bit projection; (d) 2 bit projection with black-and-white camera auxiliarydecoupling
    Topography reconstruction of colored objects. (a) Wrapped phase; (b) global phase; (c) reconstruction result
    Dynamic object reconstruction result of our method
    • Table 1. Number of reconstructed frames per second for different methods unit: frame

      View table

      Table 1. Number of reconstructed frames per second for different methods unit: frame

      MethodColor projectionBinary defocused projectionOur method
      Reconstructed frames per second13.355.6125.0
    • Table 2. Mean and standard deviation of reconstruction error unit: mm

      View table

      Table 2. Mean and standard deviation of reconstruction error unit: mm

      Method8 bit projection8 bit projection (with our decoupling scheme)2 bit projection2 bit projection (with our decoupling scheme)
      Mean error0.29810.25740.11700.0825
      Standard error0.35540.32130.14230.1013
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    Xin Zhang, Shaoyan Gai, Feipeng Da. Fast Three-Dimensional Measurement Based on Three Channel Binary Fringe Defocused Projection[J]. Laser & Optoelectronics Progress, 2020, 57(23): 231201

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    Paper Information

    Category: Instrumentation, Measurement and Metrology

    Received: Mar. 11, 2020

    Accepted: Mar. 30, 2020

    Published Online: Nov. 30, 2020

    The Author Email: Shaoyan Gai (qxxymm@163.com)

    DOI:10.3788/LOP57.231201

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