Cellular-automata method for phase unwrapping

Journal Article · Thu Jan 01 04:00:00 EST 1987 · J. Opt. Soc. Am. A; (United States)

DOI:https://doi.org/10.1364/JOSAA.4.000267· OSTI ID:6767410

Ghiglia, D C; Mastin, G A; Romero, L A

Research into two-dimensional phase unwrapping has uncovered interesting and troublesome inconsistencies that cause path-dependent results. Cellular automata, which are simple, discrete mathematical systems, offered promise of computation in nondirectional, parallel manner. A cellular automaton was discovered that can unwrap consistent phase data in n dimensions in a path-independent manner and can automatically accommodate noise-induced (pointlike) inconsistencies and arbitrary boundary conditions (region partitioning). For data with regional (nonpointlike) inconsistencies, no phase-unwrapping algorithm will converge, including the cellular-automata approach. However, the automata method permits more simple visualization of the regional inconsistencies. Examples of its behavior on one- and two-dimensional data are presented.

• Research Organization: Sandia National Laboratories, Albuquerque, New Mexico 87185
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 6767410
• Journal Information: J. Opt. Soc. Am. A; (United States), Journal Name: J. Opt. Soc. Am. A; (United States) Vol. 4:1; ISSN JOAOD
• Country of Publication: United States
• Language: English

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ALGORITHMS
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NATIONAL ORGANIZATIONS
PHASE SHIFT
PROCESSING
SANDIA LABORATORIES
STATISTICS
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