## Phase unwrapping in three dimensions with application to InSAR time series

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

http://dx.doi.org/10.1364/JOSAA.24.002737

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### Abstract

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

**History**

Original Manuscript: November 2, 2006

Revised Manuscript: April 16, 2007

Manuscript Accepted: May 1, 2007

Published: August 1, 2007

**Citation**

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)

http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-24-9-2737

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