Real-time phase distribution analysis of fringe patterns

Yoshiharu Morimoto; Motoharu Fujigaki

doi:10.1117/12.323330

29 September 1998 Real-time phase distribution analysis of fringe patterns

Proceedings Volume 3407, International Conference on Applied Optical Metrology; (1998) https://doi.org/10.1117/12.323330
Event: International Conference on Applied Optical Metrology, 1998, Balatonfured, Hungary

Abstract

A phase-shifting scanning moire method and a phase-difference scanning moire method are developed by the authors. They provide smooth equal-height contours and equal-displacement contours, respectively, in real-time. A phase-shifting method using correlation with rectangular is also developed. It uses the correlation of the rectangular brightness of a projected grid and two rectangular functions to determine a phase. It can provide accurate phase distributions in real-time.

Citation Download Citation

Yoshiharu Morimoto and Motoharu Fujigaki "Real-time phase distribution analysis of fringe patterns", Proc. SPIE 3407, International Conference on Applied Optical Metrology, (29 September 1998); https://doi.org/10.1117/12.323330

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