Compensation of fringe distortion for phaseshifting three-dimensional shape measurement by inverse map estimation

Kohei Yatabe, Kenji Ishikawa, Yasuhiro Oikawa

    Research output: Contribution to journalArticle

    33 Citations (Scopus)

    Abstract

    For three-dimensional shape measurement, phase-shifting techniques are widely used to recover the objective phase containing height information from images of projected fringes. Although such techniques can provide an accurate result in theory, there might be considerable error in practice. One main cause of such an error is distortion of fringes due to nonlinear responses of a measurement system. In this paper, a postprocessing method for compensating distortion is proposed. Compared to other compensation methods, the proposed method is flexible in two senses: (1) no specific model of nonlinearity (such as the gamma model) is needed, and (2) no special calibration data are needed (only the observed image of the fringe is required). Experiments using simulated and real data confirmed that the proposed method can compensate multiple types of nonlinearity without being concerned about the model.

    Original languageEnglish
    Pages (from-to)6017-6024
    Number of pages8
    JournalApplied Optics
    Volume55
    Issue number22
    DOIs
    Publication statusPublished - 2016 Aug 1

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    nonlinearity
    Phase measurement
    Calibration
    causes
    Compensation and Redress
    Experiments

    ASJC Scopus subject areas

    • Atomic and Molecular Physics, and Optics

    Cite this

    Compensation of fringe distortion for phaseshifting three-dimensional shape measurement by inverse map estimation. / Yatabe, Kohei; Ishikawa, Kenji; Oikawa, Yasuhiro.

    In: Applied Optics, Vol. 55, No. 22, 01.08.2016, p. 6017-6024.

    Research output: Contribution to journalArticle

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