Two-dimensional continuous wavelet transform for phase determination of complex interferograms

被引：51
|
作者：
Ma, Jun [1 ]
Wang, Zhaoyang [1 ]
Pan, Bing [2 ]
Thang Hoang [1 ,3 ]
Minh Vo [3 ]
Long Luu [3 ]
机构：
[1] Catholic Univ Amer, Dept Mech Engn, Washington, DC 20064 USA
[2] Beijing Univ Aeronaut & Astronaut, Inst Solid Mech, Beijing 100191, Peoples R China
[3] Catholic Univ Amer, Dept Elect Engn, Washington, DC 20064 USA
来源：
APPLIED OPTICS | 2011年 / 50卷 / 16期
基金：
美国国家科学基金会;
关键词：
FRINGE-PATTERN-ANALYSIS; FOURIER-TRANSFORM; DEMODULATION; INTERFEROMETRY; EXTRACTION; TRACKING;
D O I：
10.1364/AO.50.002425
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A robust two-dimensional continuous wavelet transform (2D-CWT) technique for interferogram analysis is presented. To cope with the phase determination ambiguity issue encountered in the analysis of complex interferograms, a phase determination rule is proposed according to the phase distribution continuity, and a frequency-guided scheme is employed to obtain the correct phase distribution following a conventional 2D-CWT analysis. The theories are given in details, and the validity of the proposed technique is verified by computer simulation and real experiments. (C) 2011 Optical Society of America
引用
收藏
页码：2425 / 2430
页数：6
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