Title
Fourier fringe processing by use of an interpolated Fourier-transform technique
Author
Faculty/Department
Faculty of Applied Engineering Sciences
Publication type
article
Publication
Washington :OSA ,
Subject
Engineering sciences. Technology
Source (journal)
Applied optics. - Washington
Volume/pages
43(2004) :27 , p. 5206-5213
ISSN
1559-128X
ISI
000223922900010
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Abstract
Recently a powerful Fourier transform technique was introduced that was able to extract the phase from only one image. However, because the method is based on the two-dimensional Fourier transform, it inherently suffers from leakage effects. A novel procedure is proposed that does not exhibit this distortion. The procedure uses localized information and estimates both the unknown frequencies and the phases of the fringe pattern (using an interpolated fast Fourier transform method). This allows us to demodulate the fringe pattern without any distortion. The proposed technique is validated on both computer simulations and the profile measurements of a tube. (C) 2004 Optical Society of America.
E-info
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