Wavelet processing of interferometric signals and fringe patterns

被引:45
作者
Cherbuliez, M [1 ]
Jacquot, P [1 ]
de Lega, XC [1 ]
机构
[1] Swiss Fed Inst Technol, EPFL, Stress Anal Lab, CH-1015 Lausanne, Switzerland
来源
WAVELET APPLICATIONS IN SIGNAL AND IMAGE PROCESSING VII | 1999年 / 3813卷
关键词
fringe pattern; interferometric signal; wavelet processing; Morlet transform; dynamic measurements;
D O I
10.1117/12.366825
中图分类号
TP301 [理论、方法];
学科分类号
081202 ;
摘要
The measurement of shape, displacement and deformations is often performed using interferometric methods, featuring nm to mm sensitivities and very high spatial and temporal resolutions. We first give a brief overview of interferometric techniques. Emphasis is laid on the wide purposes of these techniques. Then, we present a novel method using wavelet analysis to process live interference;patterns. Further developments of the method are then presented. Finally, through two practical examples, we intend to highlight the interest of fringe processing by wavelet transform.
引用
收藏
页码:692 / 702
页数:3
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