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Optical Engineering

Analysis of holographic fringe data using the dual reference approach
Author(s): David P. Towers; John T. Judge; Peter John Bryanston-Cross
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Paper Abstract

A new method for extracting quantitative information from a double exposure holographic interferogram is presented. Dual reference beams are used to produce continuously variable phase differences between the two images of the object at the recording stage of the hologram. Image reconstruction at three known phase differences, via a CCD camera and digital framestore, allow new automatic image processing methods to calculate the three-dimensional surface deformation.

Paper Details

Date Published: 1 April 1991
PDF: 9 pages
Opt. Eng. 30(4) doi: 10.1117/12.55810
Published in: Optical Engineering Volume 30, Issue 4
Show Author Affiliations
David P. Towers
John T. Judge, Univ. of Warwick (United Kingdom)
Peter John Bryanston-Cross, Univ. of Warwick (United Kingdom)


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