Problem of phase unwrapping for fringe pattern overlaid with random noise and segmented discontinuity

Xiaoyuan Peng; S.M. Zhu; S.H. Ye; Hans J. Tiziani

doi:10.1117/12.253018

3 October 1996 Problem of phase unwrapping for fringe pattern overlaid with random noise and segmented discontinuity

Xiaoyuan Peng, S.M. Zhu, S.H. Ye, Hans J. Tiziani

Proceedings Volume 2899, Automated Optical Inspection for Industry; (1996) https://doi.org/10.1117/12.253018
Event: Photonics China '96, 1996, Beijing, China

Abstract

This paper presents a new phase unwrapping algorithm to deal with the problem of phase restoration from an interferogram that is in presence of both high-level random noise and segmented discontinuity. The algorithm is based on a composite template matching to simultaneously identify unreasonable phase jumps caused by speckle noise and segmented discontinuities such as holes and borders int he wrapped phase map. Examples unwrap with the interferograms generated by the computer and real speckle fringe patterns taken from double-pulsed speckle interferometer are included to show that the technique is efficient and simple to implement.

Citation Download Citation

Xiaoyuan Peng, S.M. Zhu, S.H. Ye, and Hans J. Tiziani "Problem of phase unwrapping for fringe pattern overlaid with random noise and segmented discontinuity", Proc. SPIE 2899, Automated Optical Inspection for Industry, (3 October 1996); https://doi.org/10.1117/12.253018

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