Temporal phase unwrapping of digital hologram sequences

被引：42
|
作者：
Pedrini, G [1 ]
Alexeenko, I [1 ]
Osten, W [1 ]
Tiziani, HJ [1 ]
机构：
[1] Univ Stuttgart, Inst Tech Opt, D-70569 Stuttgart, Germany
来源：
APPLIED OPTICS | 2003年 / 42卷 / 29期
关键词：
SPECKLE PATTERN INTERFEROMETRY; FOURIER-TRANSFORM METHOD; DEFORMATION; OBJECTS;
D O I：
10.1364/AO.42.005846
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A method for recording and evaluating digital image-plane holograms is presented. Hundreds of holograms of an object that has been subjected to dynamic deformation (e.g., vibrations) are recorded. The phase of the wave front is calculated from the recorded holograms by use of a two-dimensional digital Fourier-transform method. By temporal phase unwrapping it is possible to determine the absolute deformation (included the direction of motion) of the object. Experimental results are presented, and the advantages of temporal phase unwrapping compared with spatial phase unwrapping are discussed. (C) 2003 Optical Society of America.
引用
收藏
页码：5846 / 5854
页数：9
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