Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Measurement of curvature and twist of a deformed object using digital holography

Not Accessible

Your library or personal account may give you access

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

Full Article  |  PDF Article
More Like This
Fast measurements of concentration profiles inside deformable objects in microflows with reduced spatial coherence digital holography

Christophe Minetti, Natacha Callens, Gwennou Coupier, Thomas Podgorski, and Frank Dubois
Appl. Opt. 47(29) 5305-5314 (2008)

Simultaneous three-dimensional dynamic deformation measurements with pulsed digital holography

Staffan Schedin, Giancarlo Pedrini, Hans J. Tiziani, and Fernando Mendoza Santoyo
Appl. Opt. 38(34) 7056-7062 (1999)

Kinematic and deformation parameter measurement by spatiotemporal analysis of an interferogram sequence

Yu Fu, Roger M. Groves, Giancarlo Pedrini, and Wolfgang Osten
Appl. Opt. 46(36) 8645-8655 (2007)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (8)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (20)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved