1 August 1988 Application Of Moire Analysis Of Strain Using Fourier Transform
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By shifting the discrete Fourier spectrum of the image of a deformed grating, we obtain the "complex moire pattern," from which strain distribution is given as the derivatives of the phases of the complex moire fringes. The analysis is completely automated by digital image processing. All of the laborious and subjective procedures required in the conventional analysis such as fringe sign determination, fringe ordering, and fringe interpolation are thus eliminated, permitting objective, fast, and accurate analysis. Some applications for rubber plates are shown.
Yoshiharu Morimoto, Yoshiharu Morimoto, Yasuyuki Seguchi, Yasuyuki Seguchi, Toshihiko Higashi, Toshihiko Higashi, } "Application Of Moire Analysis Of Strain Using Fourier Transform," Optical Engineering 27(8), 278650 (1 August 1988). https://doi.org/10.1117/12.7976737 . Submission:

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