한국정밀공학회지 (Journal of the Korean Society for Precision Engineering)

  • 제18권7호
  • /
  • Pages.149-154
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  • 2001
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  • 1225-9071(pISSN)
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  • 2287-8769(eISSN)
한국정밀공학회 (Korean Society for Precision Engineering)
권호 표지

광학적 비접촉 측정에 의한 구조물 해석의 화상처리 계측 시스템 개발에 관한 연구

A Study on the Development of Image Processing Measurement System for Structural Analysis by Optical Non-contact Measurement

  • 발행 : 2001.07.01
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초록

This study discusses a non-contact optical technique, electronic speckle pattern interferometry(ESPI), that is well suited for a deformation measurement of structure. Phase shifting method and unwrapping method have used to make deformation quantitative widely. In this paper, a previous numerical formula for phase shifting method is reconstructed in addition to least square fitting method to improve sensitivity and phase unwrapping based on vertical-horizontal scanning method is applied to analyze in-plane and out-of-plane deformation quantitatively.

키워드

참고문헌

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  4. P. G. Charette and I. W. Hunter, 'Robust phase-unwrapping method for phase images with high noise content,' Appl. Opt., Vol. 35, No. 29, pp. 3506-3513, 1996
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