Laser & Optoelectronics Progress, Volume. 57, Issue 13, 131205(2020)

Two-Frame Phase Shift Extraction Algorithm Based on Gradient Descent Algorithm

Shaofeng Zhang, Hubing Du*, Ruiqing Guo, and Zhouxuan He
Author Affiliations
  • School of Mechatronic Engineering, Xi'an Technology University, Xi'an, Shaanxi 710021, China
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    Figures & Tables(11)
    Two-frame simulation phase shift stripe maps. (a) 1st frame stripe maps; (b) 2nd frame stripe maps with phase shift Δ
    Theoretical wrapped phase map
    Distribution of amplitude standard deviation and phase shift
    Phase shift extraction errors
    Phase demodulation results. (a) Proposed algorithm; (b) AST algorithm; (c) GS algorithm; (d) ROF algorithm
    RMSE of different algorithms
    RMSE of four algorithms under different SNR
    Two-frame actual stripe maps. (a) 1st frame stripe maps; (b) 2nd frame stripe maps with phase shift Δ
    Reference phase map obtained by AIA
    Wrapped phase maps. (a) Proposed algorithm; (b) AST algorithm; (c) GS algorithm; (d) ROF algorithm
    • Table 1. RMSE of four algorithms

      View table

      Table 1. RMSE of four algorithms

      AlgorithmProposedASTGSROF
      RMSE /rad0.5454280.6601540.7055040.572388
      Time /s4.3083354.4839180.1411394.445929
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    Shaofeng Zhang, Hubing Du, Ruiqing Guo, Zhouxuan He. Two-Frame Phase Shift Extraction Algorithm Based on Gradient Descent Algorithm[J]. Laser & Optoelectronics Progress, 2020, 57(13): 131205

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    Paper Information

    Category: Instrumentation, Measurement and Metrology

    Received: Aug. 17, 2019

    Accepted: Oct. 29, 2019

    Published Online: Jul. 9, 2020

    The Author Email: Hubing Du (duhubing@xatu.edu.cn)

    DOI:10.3788/LOP57.131205

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