Phase unwrapping by regions using least-squares approach

Kai Man Hung; Toshiyuki Yamada

doi:10.1117/1.601884

1 November 1998 Phase unwrapping by regions using least-squares approach

Kai Man Hung, Toshiyuki Yamada

Author Affiliations +

Optical Engineering, Vol. 37, Issue 11, (November 1998). https://doi.org/10.1117/1.601884

An algebraic method based on finding least-squares solutions from a set of simultaneous linear equations (SLEs) is applied to phase unwrapping by regions in optical interferometry. By transforming the phase unwrapping problem into a matrix equation, the characteristics of the phase map can be observed entirely from the properties, such as the rank or the null space, of the matrix that represents the phase unwrapping problem. The familiarity of solving SLEs using common numerical routines such as QR decomposition means that the algebraic method is easily formulated and computed. The robustness of the phaseunwrapping method is then tested computationally and experimentally and its enhancement is proven through the simulation and experimental results.

Citation Download Citation

Kai Man Hung and Toshiyuki Yamada "Phase unwrapping by regions using least-squares approach," Optical Engineering 37(11), (1 November 1998). https://doi.org/10.1117/1.601884

Published: 1 November 1998

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