Two-dimensional discrete wavelets transform for optical phase extraction: application on speckle correlation fringes

Abdulatef Ghlaifan; Yassine Tounsi; Sara Zada; Desire Muhire; Abdelkrim Nassim

doi:10.1117/1.OE.55.12.121708

28 June 2016 Two-dimensional discrete wavelets transform for optical phase extraction: application on speckle correlation fringes

Abdulatef Ghlaifan, Yassine Tounsi, Sara Zada, Desire Muhire, Abdelkrim Nassim

Author Affiliations +

Optical Engineering, Vol. 55, Issue 12, 121708 (June 2016). https://doi.org/10.1117/1.OE.55.12.121708

Abstract

A method for optical phase extraction based on two-dimensional discrete wavelets transform (2-DWT) decomposition is shown. From modulated fringe pattern, phase distribution is extracted by the ratio between detail and approximation. Modulation process is realized digitally by introducing high-frequency spatial carrier, and this process needs two π/2-shifted fringe patterns. We propose to use only single fringe and generate its quadrature by spiral phase transform (SPT). After validation by computer simulation, we apply the 2-DWT algorithm on experimental speckle fringe correlation taken for hard disk surface. The extracted phase using SPT quadrature was compared with that given using this time experimental quadrature, and we show a good performance by multiscale structural similarity metric.

Citation Download Citation

Abdulatef Ghlaifan, Yassine Tounsi, Sara Zada, Desire Muhire, and Abdelkrim Nassim "Two-dimensional discrete wavelets transform for optical phase extraction: application on speckle correlation fringes," Optical Engineering 55(12), 121708 (28 June 2016). https://doi.org/10.1117/1.OE.55.12.121708

Published: 28 June 2016

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available