Phase retrieval of speckle fringe pattern with carriers using 2D wavelet transform

被引：23

作者：

Niu, H. ^{[1
]}

Quan, C. ^{[1
]}

Tay, C. J. ^{[1
]}

机构：

[1] Natl Univ Singapore, Dept Mech Engn, Singapore 117576, Singapore

来源：

OPTICS AND LASERS IN ENGINEERING | 2009年 / 47卷 / 12期

关键词：

2D Wavelet transform; Phase retrieval; Fringe filtering; Speckle fringe pattern; INTERFEROMETRY;

D O I：

10.1016/j.optlaseng.2008.10.005

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A novel two-dimensional (2D) Gabor continuous wavelet transform (CWT) for phase retrieval and fringe filtering of speckle fringe patterns with spatial carriers is proposed. Theoretical analysis of 2D Gabor CWT is presented and results are compared with advanced fan 2D CWT using both the computer simulated and experimental speckle fringe patterns. It is shown that noise reduction by 2D Gabor CWT demonstrates better results than that of the advanced fan 2D CWT. Two-dimensional Gabor CWT is also compared with 2D Fourier transform and results show that 2D Gabor CWT algorithm has better noise immunity. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：1334 / 1339

页数：6

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