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1998 Fiscal Year Final Research Report Summary

Real-time Display System for Contour Lines and Equal-displacement Lines by Scanning Moire Method Using Phase-shifting

Research Project

Project/Area Number 09555033
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section展開研究
Research Field Materials/Mechanics of materials
Research InstitutionWakayama University

Principal Investigator

MORIMOTO Yoshiharu  Wakayama University, Faculty of Systems Engineering, Professor, システム工学部, 教授 (20029573)

Co-Investigator(Kenkyū-buntansha) FUJIGAKI Motoharu  Wakayama University Faculty of Systems Engineering, Associate Researcher, システム工学部, 助手 (40273875)
NOMURA Takanori  Wakayama University Faculty of Systems Engineering, Assistant Professor, システム工学部, 講師 (80222206)
Project Period (FY) 1997 – 1998
Keywordsreal-time / phase-shifting / scanning moire / strain / displacement / shape / contour line / equal-displacementline
Research Abstract

Phase analysis of grid patterns obtained by grid projection methods is used to measure accurate shapes for 3-D objects, and also phase analysis of fringes obtained by interferometer is used to measure accurate flatness of plates. The accuracy of the phase analysis methods is 1110-1/1000 of a grid pitch or a wavelength of light.
To analyze phase distributions of grids and fringe patterns, we proposed the Fourier transform method, the Gabol transform method and the wavelet transform method previously. We applied these methods to analysis of shapes and fringe patterns. However, phase analysis usually consumes much time. In this study, we propose four methods to measure shapes of 3-D objects or flatness of plates in real-time. The first is a phase-shifting scanning moire method. The second is a phase difference scanning moire method. The third is a phase-shifting method using the correlation of the rectangular brightness of a projected grid and two rectangular functions. The last is the integrated phase shifting method. These methods can provide accurate phase distributions in real-time.
The principle and application applied to shape, strain and stress analysis are shown.

  • Research Products

    (16 results)

All Other

All Publications (16 results)

  • [Publications] 金汪根、藤垣元治、森本吉春: "位相シフト走査モアレ法によるノイズのない等高線・等変位線表示システムの開発" 精密工学会 2回知能メカトロニクスワークショップ講演論文集. 29-34 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] M.Fujigaki, W.G.Kim, Y.Morimoto: "Shapa Measurment by Phase Shifting Scanning Moire Method" Proceedings of Interantional Conterendce on Advanced Technology in Experimental Mechanics, JSME. 161-164 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 藤垣元治、金汪根、森本吉春: "位相シフト走査モアレ法によるリアルタイム等高線・等変位線表示システムの開発" 日本非破壊検査協会、平成10年光画像応用研究委員会資料.

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 藤垣元治、腹巻宏一、森本吉春: "相関を利用した位相シフト走査モアレ法による人体形状計測" 第3回知能メカトロニクスワークショップ. 29-34 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 藤垣元治、森本吉春: "相関を利用した位相シフト格子法の精度検討" 平成10年度日本機械学会材料力学部門講演会講演論文集. Vol.A. 201-202 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Y.Morimoto and M.Fujigaki: "Real-time phdse distribution analysis of fringe patterns" International Conference on Applied Optical Metrology. (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Y.Morimoto, M.Fujigaki: "Digital tmage Processing by Shifing Method Using Fourier Transform" International Union of Theoretical and Applied Mechanics. (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] M.Fujigaki, Y.Morimoto: "Phase Analysis of Teeth Bed by Phase Shifting Method Correlation" Applied Mechanics in the Americas. Vol.b. 113-116 (1999)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] M.Fujigaki, W.G.Kim, Y.Morimoto: "Shape Measurement by Phase Shifting Scanning Moire Method" Proceedings of International Conference on Advanced Technology in Experimental Mechanics. 161-164 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] W.G.Kim, M.Fujigaki, Y.Morimoto: "Development of Display System for Noize-free Contour lines and Equal-displacement lines by Scanning Moire Method Using Phase-shfting" The 2nd Intelligent Mechatronics Workshop. 214-219 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M.Fujigaki, K.Haramaki, Y.Morimoto: "Real-time Display System for Contour Lines and Equal-displacement Lines by Scanning Moire Method Using Phase-shifting" JSNDT Photo-Image Application Committee. (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Y.Morimoto, M.Fujigaki: "Real-time phase distribution analysis of fringe patterns" International Conference on Appliced Optical Metrogy. (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M.Fujigaki, K.Haramaki, Y.Morimoto: "Human Body Shape Measurement by Scanning Moire Method Using Phase-shifting with correlation" The 3rd Intelligent Mechatronics Workshop. 29-34 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Y.Morimoto, M.Fujigaki: "Digital Image Processing by Phase Shifting Method Using Fourier Transform" International Union of Theoretical and Applied Mechanics. (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M.Fujigaki, Y.Morimoto: "Accuracy of Phase-shifting Grid Method Using Correlation" Proc.of 1998 Annual Meeting JSME-MMD (No.98-5). 201-202 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M.Fujigaki, Y.Morimoto: "Phase Analysis of Teeth Bed by Phase Shifting Method Using Correlation" Applied Mechanics in the Americas, Vol.6, Sixth Pan American Congress of Applied Mechanics (PACAM VI). Vol.6. 113-116 (1999)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1999-12-08  

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