Modified Hilbert transformation method for fringe pattern analysis

Wai-on Wong; M. S. M. Chan; K. T. Chan; R. M. C. So

doi:10.1117/12.429613

13 June 2001 Modified Hilbert transformation method for fringe pattern analysis

Wai-on Wong, M. S. M. Chan, K. T. Chan, R. M. C. So

Proceedings Volume 4317, Second International Conference on Experimental Mechanics; (2001) https://doi.org/10.1117/12.429613
Event: Second International Conference on Experimental Mechanics, 2000, Singapore, Singapore

Abstract

A new method of quantitative phase evaluation of 2D fringe patterns based on Hilbert transformation is proposed. While it retains most of the advantages of the traditional Hilbert transformation method, the new method avoids the spurious discontinuities and sign reversals of the phase map from the classical Fourier-based methods. Only one interference pattern is required for the phase evaluation. The performance of the proposed method is evaluated by computer simulation.

Citation Download Citation

Wai-on Wong, M. S. M. Chan, K. T. Chan, and R. M. C. So "Modified Hilbert transformation method for fringe pattern analysis", Proc. SPIE 4317, Second International Conference on Experimental Mechanics, (13 June 2001); https://doi.org/10.1117/12.429613

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