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Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/5930

Title: Adaptive phase-shifting algorithm for temporal phase evaluation
Authors: Ruiz, Pablo D.
Huntley, Jonathan M.
Kaufmann, Guillermo H.
Issue Date: 2003
Publisher: © Optical Society of America
Citation: RUIZ, P.D., HUNTLEY, J.M. and KAUFMANN, G.H., 2003. Adaptive phase-shifting algorithm for temporal phase evaluation. Journal of the Optical Society of America A: Optics, Image Science & Vision, 20 (2), p.325-332.
Abstract: Most standard temporal phase-shifting algorithms evaluate the phase by computing a windowed Fourier transform (WFT) of the intensity signal at the carrier frequency of the system. However, displacement of the specimen during image acquisition may cause the peak of the transform to shift away from the carrier frequency, leading to phase errors and even unwrapping failure. We present a novel TPS method that searches for the peak of the WFT and evaluates the phase at that frequency instead of at the carrier frequency. The performance of this method is compared with that of standard algorithms by using numerical simulations. Experimental results from highspeed speckle interferometry studies of carbon fiber panels are also presented.
Description: This paper was published in Journal of the Optical Society of America A and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-20-2-325. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
Version: Accepted for publication
DOI: 10.1364/JOSAA.20.000325
URI: https://dspace.lboro.ac.uk/2134/5930
ISSN: 1084-7529
Appears in Collections:Published Articles (Mechanical, Electrical and Manufacturing Engineering)

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