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Optical Engineering • new

Estimation of phase derivative from a single fringe pattern using Riesz transforms
Author(s): Yassine Tounsi; Sara Zada; Desire Muhire; Ahmed Siari; Abdelkrim Nassim
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Paper Abstract

We propose a technique to estimate the phase derivative in both x and y directions based on Riesz transform from a single speckle correlation fringes. The originality of this technique is to exploit Riesz transform for phase derivatives estimation, spatial modulation, speckle denoising, and measure of features similarity. Phase modulation process is realized by combining a digital spatial carrier and Riesz quadrature; speckle denoising is computed using Riesz wavelets transform, and the performance is evaluated by Riesz features SIMilarity. Before applying our method on real speckle correlation fringes, its performance is tested by numerical simulation.

Paper Details

Date Published: 12 April 2017
PDF: 6 pages
Opt. Eng. 56(11) 111706 doi: 10.1117/1.OE.56.11.111706
Published in: Optical Engineering Volume 56, Issue 11
Show Author Affiliations
Yassine Tounsi, Univ. Chouaïb Doukkali (Morocco)
Sara Zada, Univ. Chouaïb Doukkali (Morocco)
Desire Muhire, Univ. Chouaïb Doukkali (Morocco)
Ahmed Siari, Chouaib Doukkali University (Morocco)
Abdelkrim Nassim, Univ. Chouaïb Doukkali (Morocco)

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