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Journal of the Optical Society of America A

Journal of the Optical Society of America A


  • Editor: Steven A. Burns
  • Vol. 24, Iss. 9 — Sep. 1, 2007
  • pp: 2737–2747

Phase unwrapping in three dimensions with application to InSAR time series

Andrew Hooper and Howard A. Zebker  »View Author Affiliations

JOSA A, Vol. 24, Issue 9, pp. 2737-2747 (2007)

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The problem of phase unwrapping in two dimensions has been studied extensively in the past two decades, but the three-dimensional (3D) problem has so far received relatively little attention. We develop here a theoretical framework for 3D phase unwrapping and also describe two algorithms for implementation, both of which can be applied to synthetic aperture radar interferometry (InSAR) time series. We test the algorithms on simulated data and find both give more accurate results than a two-dimensional algorithm. When applied to actual InSAR time series, we find good agreement both between the algorithms and with ground truth.

© 2007 Optical Society of America

OCIS Codes
(100.6890) Image processing : Three-dimensional image processing
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(280.6730) Remote sensing and sensors : Synthetic aperture radar
(350.5030) Other areas of optics : Phase

ToC Category:
Image Processing

Original Manuscript: November 2, 2006
Revised Manuscript: April 16, 2007
Manuscript Accepted: May 1, 2007
Published: August 1, 2007

Andrew Hooper and Howard A. Zebker, "Phase unwrapping in three dimensions with application to InSAR time series," J. Opt. Soc. Am. A 24, 2737-2747 (2007)

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