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Optical Engineering

Speckle photography and the fractional Fourier transform
Author(s): Robert P. Patten; John T. Sheridan; Alan Larkin
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Paper Abstract

The fractional Fourier transform (FRT) is used in the analysis of surface motion in combination with the speckle photography technique. It is demonstrated experimentally that the extra degree of freedom made available by the use of an optical implementation of the FRT allows controlled variation of both the minimum resolution and dynamical range of measurement of tilting (rotational) motion.

Paper Details

Date Published: 1 August 2001
PDF: 3 pages
Opt. Eng. 40(8) doi: 10.1117/1.1387991
Published in: Optical Engineering Volume 40, Issue 8
Show Author Affiliations
Robert P. Patten, Dublin Institute of Technology (Ireland)
John T. Sheridan, Univ. of Dublin (Ireland)
Alan Larkin, University College Dublin (United Kingdom)


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