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|Title:||Measurement of curvature and twist of a deformed object using digital holography|
|Authors:||Chen, W. |
|Source:||Chen, W.,Quan, C.,Tay, C.J. (2008-05-20). Measurement of curvature and twist of a deformed object using digital holography. Applied Optics 47 (15) : 2874-2881. ScholarBank@NUS Repository. https://doi.org/10.1364/AO.47.002874|
|Abstract:||Measurement of curvature and twist is an important aspect in the study of object deformation. In recent years, several methods have been proposed to determine curvature and twist of a deformed object using digital shearography. Here we propose a novel method to determine the curvature and twist of a deformed object using digital holography and a complex phasor. A sine/cosine transformation method and two-dimensional short time Fourier transform are proposed subsequently to process the wrapped phase maps. It is shown that high-quality phase maps corresponding to curvature and twist can be obtained. An experiment is conducted to demonstrate the validity of the proposed method. © 2008 Optical Society of America.|
|Source Title:||Applied Optics|
|Appears in Collections:||Staff Publications|
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