Adaptive monogenic filtering and normalization of ESPI fringe patterns

被引：54

作者：

Guerrero, JA ^{[1
]}

Marroquin, JL ^{[1
]}

Rivera, M ^{[1
]}

Quiroga, JA ^{[1
]}

机构：

[1] Ctr Invest Matemat, Guanajuato 360005, Gto, Mexico

来源：

OPTICS LETTERS | 2005年 / 30卷 / 22期

关键词：

D O I：

10.1364/OL.30.003018

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A technique is presented for filtering and normalizing noisy fringe patterns, which may include closed fringes, so that single-frame demodulation schemes may be successfully applied. It is based on the construction of an adaptive filter as a linear combination of the responses of a set of isotropic bandpass filters. The space-varying coefficients are proportional to the envelope of the response of each filter, which in turn is computed by using the corresponding monogenic image [Felsberg and Sommer, IEEE Trans. Signal Process. 49, 3136 (2001)]. Some examples of demodulation of real Electronic Speckle Pattern Interferometry (ESPI) images patterns are presented. (c) 2005 Optical Society of America

引用

页码：3018 / 3020

页数：3

共 5 条

[1] The monogenic signal [J].