2D phase unwrapping using Markov random field based phase locked loops

N. Deniz Cagatay; Mihai Datcu

doi:10.1117/12.2032775

17 October 2013 2D phase unwrapping using Markov random field based phase locked loops

N. Deniz Cagatay, Mihai Datcu

Proceedings Volume 8891, SAR Image Analysis, Modeling, and Techniques XIII; 889107 (2013) https://doi.org/10.1117/12.2032775
Event: SPIE Remote Sensing, 2013, Dresden, Germany

Abstract

In this work, a Markov random field based phase locked loop is proposed for phase unwrapping. The neighboring pixels are used to update the phase estimate of the centering pixel. The performance of the proposed method is evaluated for both synthetic and real interferometric phase. For terrains with relatively low slopes, the phase unwrapping is done successfully. However, in case of high fringe frequency, the method fails to unwrap the whole phase gradient. Nevertheless, the noise suppression capability of phase locked loop is remarkable.

Citation Download Citation

N. Deniz Cagatay and Mihai Datcu "2D phase unwrapping using Markov random field based phase locked loops", Proc. SPIE 8891, SAR Image Analysis, Modeling, and Techniques XIII, 889107 (17 October 2013); https://doi.org/10.1117/12.2032775

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