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|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|
|Appears in Collections:||Published Articles (Mechanical, Electrical and Manufacturing Engineering)|
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