Speckle noise suppression in measurement by phase-shifting digital holography

Ichirou Yamaguchi; Masayuki Yokota

doi:10.1117/1.3204687

1 August 2009 Speckle noise suppression in measurement by phase-shifting digital holography

Ichirou Yamaguchi, Masayuki Yokota

Author Affiliations +

Optical Engineering, Vol. 48, Issue 8, 085602 (August 2009). https://doi.org/10.1117/1.3204687

Abstract

A new algorithm for fringe phase analysis is proposed for shape and deformation measurement of diffusely reflecting surfaces by digital holography. It derives the phase of the averaged conjugate product of complex amplitudes before and after wavelength change or object deformation, corresponding to the complex coherence factor, and is consistent with a theory on fringe formation in holographic interferometry. By experiments and computer simulations, it is demonstrated that the algorithm is much more immune to speckle noise in phase analysis and unwrapping than conventional methods.

©(2009) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Ichirou Yamaguchi and Masayuki Yokota "Speckle noise suppression in measurement by phase-shifting digital holography," Optical Engineering 48(8), 085602 (1 August 2009). https://doi.org/10.1117/1.3204687

Published: 1 August 2009

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