SOLUTION OF THE PROBLEM OF PHASE AMBIGUITY BY INTEGER INTERFEROMETRY
V. I. Guzhov, S. P. Il’inykh, R. A. Kuznetsov, A. R. Vagizov
Novosibirsk State Technical University, pr. Karla Marksa 20, Novosibirsk, 630092 Russia
vig@edu.nstu.ru
Keywords: optics, interferometry, phase-shifting interferometry, resolution of phase ambiguity
Abstract
An automatic method is proposed to resolve phase ambiguity in interpreting fringe patterns by a series of two phase distributions with different periods. The method does not require identification of local phase transitions in adjacent image regions and can determine the total phase at each point separately.
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