Adaptive asynchronous algorithm for fringe pattern demodulation

被引：4

作者：

Gomez-Pedrero, J. A. ^{[1
]}

Quiroga, J. A. ^{[1
]}

Servin, M. ^{[2
]}

机构：

[1] Univ Complutense Madrid, Fac Ciencias Fis, Dept Opt, E-28040 Madrid, Spain

[2] Ctr Invest Opt, Guanajuato 37150, Mexico

来源：

APPLIED OPTICS | 2008年 / 47卷 / 21期

关键词：

Frequency response;

D O I：

10.1364/AO.47.003954

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present a spatial adaptive asynchronous algorithm for fringe pattern demodulation. The proposed algorithm is based on the standard five-step asynchronous method with the one modification that we select the best sample spacing for each point of the fringe pattern. As we show, the frequency response of any asynchronous method depends on the sample spacing. This interesting behavior is used to select the best sample spacing as the one that gives the biggest response for each location. The overall result is a spatial demodulation algorithm with an improved frequency response compared to the existing ones. We show the feasibility of the proposed method with theoretical analysis as well as experimental results. (C) 2008 Optical Society of America.

引用

页码：3954 / 3961

页数：8

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