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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 42, Iss. 17 — Jun. 10, 2003
  • pp: 3373–3378

Least-Squares Modal Estimation of Wrapped Phases: Application to Phase Unwrapping

Justo Arines  »View Author Affiliations


Applied Optics, Vol. 42, Issue 17, pp. 3373-3378 (2003)
http://dx.doi.org/10.1364/AO.42.003373


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Abstract

Phase unwrapping continues to be an important step in those techniques that obtain the phase from Fourier transforms. We propose a fast two-dimensional phase-unwrapping algorithm that has been specially designed to be used as part of an iterative algorithm. It can be used also as a final step of a phase retrieval process with other unwrapping techniques. The algorithm consists of a modal least-squares estimation of the wrapped phase by using as inputs to the linear estimation the derivative of the wrapped phase. A theoretical description of the method, simulations, and experimental validations are presented.

© 2003 Optical Society of America

OCIS Codes
(100.5070) Image processing : Phase retrieval
(120.2650) Instrumentation, measurement, and metrology : Fringe analysis
(120.5050) Instrumentation, measurement, and metrology : Phase measurement

Citation
Justo Arines, "Least-Squares Modal Estimation of Wrapped Phases: Application to Phase Unwrapping," Appl. Opt. 42, 3373-3378 (2003)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-42-17-3373


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References

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