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Proceedings Paper

Problem of phase unwrapping for fringe pattern overlaid with random noise and segmented discontinuity
Author(s): Xiaoyuan Peng; S.M. Zhu; S.H. Ye; Hans J. Tiziani
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Paper 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.

Paper Details

Date Published: 3 October 1996
PDF: 9 pages
Proc. SPIE 2899, Automated Optical Inspection for Industry, (3 October 1996); doi: 10.1117/12.253018
Show Author Affiliations
Xiaoyuan Peng, Tianjin Univ. (China)
S.M. Zhu, Tianjin Univ. (China)
S.H. Ye, Tianjin Univ. (China)
Hans J. Tiziani, Univ. Stuttgart (Germany)


Published in SPIE Proceedings Vol. 2899:
Automated Optical Inspection for Industry
Frederick Y. Wu; Shenghua Ye, Editor(s)

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