Phase measurement in digital speckle pattern interferometry using wavelet transforms: recent developments

Alejandro Federico; Guillermo H. Kaufmann

doi:10.1117/12.591606

21 October 2004 Phase measurement in digital speckle pattern interferometry using wavelet transforms: recent developments

Alejandro Federico, Guillermo H. Kaufmann

Author Affiliations +

Proceedings Volume 5622, 5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications; (2004) https://doi.org/10.1117/12.591606
Event: 5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications, 2004, Porlamar, Venezuela

Abstract

This presentation reviews recent developments carried out by the authors to evaluate phase distributions in digital speckle pattern interferometry (DSPI) using wavelet analysis. The advantage of this approach is that it requires only one interferogram to be analyzed and does not need the application of a phase unwrapping algorithm neither the introduction of carrier fringes in the interferometer. In particular, it is presented an approach that takes into account the second order contribution of the phase map. It is also presented the application of a smoothed time-frequency distribution which improves the accuracy of the results obtained in the neighborhood of stationary phase points and also when the generated DSPI fringes present discontinuities in the first derivative of the phase map.

Citation Download Citation

Alejandro Federico and Guillermo H. Kaufmann "Phase measurement in digital speckle pattern interferometry using wavelet transforms: recent developments", Proc. SPIE 5622, 5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications, (21 October 2004); https://doi.org/10.1117/12.591606

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

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
6 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Continuous wavelet transforms

Wavelet transforms

Wavelets

Image filtering

Fringe analysis

Phase measurement

Interferometry

Show All Keywords

Keywords/Phrases

Search In:

Publication Years