Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Phase unwrapping by region growing

Not Accessible

Your library or personal account may give you access

Abstract

The phase unwrapping problem consists in singling out an integer field whose values make the original wrapped phase field continuous. Even if in principle the problem is very simple—a direct integration of the wrapped phase field suffices—in the presence of noise and/or undersampling, the solution is no longer unique and the direct integration methods usually fail to find an acceptable solution. This work presents what is to my knowledge a new unwrapping algorithm that attempts to find the solution by iteratively merging and shifting the continuous areas until a single region is built or no further moves are possible. Unlike the tile methods, the regions can have arbitrary shape and need not be single-connected so that, by removing the predefined size and shape constraint, the algorithm is very robust. The greater freedom of the regions’ shape makes their handling more problematic, so that certain implementation aspects, critical to algorithm performance, are presented here. Some unwrapping examples are also presented and memory requirements are discussed.

© 2003 Optical Society of America

Full Article  |  PDF Article
More Like This
Disk-growing algorithm for phase-map unwrapping: application to speckle interferograms

C. De Veuster, P. Slangen, Y. Renotte, L. Berwart, and Y. Lion
Appl. Opt. 35(2) 240-247 (1996)

Two-dimensional phase unwrapping by quad-tree decomposition

Antonio Baldi
Appl. Opt. 40(8) 1187-1194 (2001)

Deterministic phase unwrapping in the presence of noise

Vyacheslav V. Volkov and Yimei Zhu
Opt. Lett. 28(22) 2156-2158 (2003)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (13)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (6)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved