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Proceedings Paper

Simple and effective phase unwrapping technique
Author(s): Yiping Xu; Chiayu Ai
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Paper Abstract

This paper describes a simple and effective phase unwrapping technique that prevents the propagation of errors introduced at some locations on a surface from being included in or propagating to all subsequent calculations for the remaining area of the surface. Unlike conventional phase unwrapping methods that use only the principal phase value, the proposed technique utilizes the modulation information about the fringe pattern to divide the principal phase map into regions, performs mathematical morphology operations to generate a labeled unwrapping sequence mask, and carries out multi-stage phase unwrapping procedures.

Paper Details

Date Published: 10 December 1993
PDF: 10 pages
Proc. SPIE 2003, Interferometry VI: Techniques and Analysis, (10 December 1993); doi: 10.1117/12.165458
Show Author Affiliations
Yiping Xu, WYKO Corp. (United States)
Chiayu Ai, WYKO Corp. (United States)

Published in SPIE Proceedings Vol. 2003:
Interferometry VI: Techniques and Analysis
Osuk Y. Kwon; Gordon M. Brown; Malgorzata Kujawinska, Editor(s)

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