Phase unwrapping using region-based markov random field model. Academic Article

abstract

• Phase unwrapping is a classical problem in Magnetic Resonance Imaging (MRI), Interferometric Synthetic Aperture Radar and Sonar (InSAR/InSAS), fringe pattern analysis, and spectroscopy. Although many methods have been proposed to address this problem, robust and effective phase unwrapping remains a challenge. This paper presents a novel phase unwrapping method using a region-based Markov Random Field (MRF) model. Specifically, the phase image is segmented into regions within which the phase is not wrapped. Then, the phase image is unwrapped between different regions using an improved Highest Confidence First (HCF) algorithm to optimize the MRF model. The proposed method has desirable theoretical properties as well as an efficient implementation. Simulations and experimental results on MRI images show that the proposed method provides similar or improved phase unwrapping than Phase Unwrapping MAx-flow/min-cut (PUMA) method and ZpM method.

authors

• Ji, Jim

published proceedings

• Annu Int Conf IEEE Eng Med Biol Soc

altmetric score

• 3

author list (cited authors)

• Dong, Y., & Ji, J.

citation count

• 2

complete list of authors

• Dong, Ying||Ji, Jim

publication date

• August 2010

publisher

• Institute of Electrical and Electronics Engineers (IEEE)  Publisher

published in

• n2375-7477ISSN  Journal

keywords

• Algorithms
• Brain
• Computer Simulation
• Humans
• Image Enhancement
• Image Interpretation, Computer-Assisted
• Magnetic Resonance Imaging
• Markov Chains
• Models, Biological
• Models, Statistical
• Reproducibility Of Results
• Sensitivity And Specificity

Digital Object Identifier (DOI)

• 10.1109/IEMBS.2010.5627494

start page

• 3309

end page

• 3312

volume

• 2010

URL

• http://dx.doi.org/10.1109/iembs.2010.5627494