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| Content Provider | IET Digital Library |
|---|---|
| Author | Zhou, Lifan Xia, Yu |
| Abstract | Phase unwrapping (PU) is one of the important procedures in measuring digital elevation model (DEM) from interferometric synthetic aperture radar (InSAR) images. It is known that the existence of phase discontinuity poses challenges to the traditional PU algorithms. In this study, the authors propose a coupled Markov random fields (MRF) called line process (LP) for PU, abbreviated as the LP-MRF method. First, an 8-neighbourhood line process is used to detect discontinuous phase surfaces while regularising continuous phase surface. Then, a truncated quadratic is utilised in the LP model for optimisation convenience. Finally, the proposed method on four types of simulated experimental data is tested, which yields that the proposed method has better performance than some of the commonly used methods in handling sharp phase discontinuities while regularising continuous phase surfaces. |
| Starting Page | 5726 |
| Ending Page | 5731 |
| Page Count | 6 |
| Volume Number | 2019 |
| e-ISSN | 20513305 |
| Issue Number | Issue 19, Oct (2019) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/joe/2019/19 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/joe.2019.0442 |
| Journal | The Journal of Engineering |
| Publisher | The Institution of Engineering and Technology |
| Publisher Date | 2019-05-30 |
| Access Restriction | Open |
| Rights License | Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/) |
| Subject Keyword | Coupled Markov Random Field Digital Elevation Model Discontinuity Preserving Phase Unwrapping Algorithm InSAR Interferometric Synthetic Aperture Radar Image LP Model LP-MRF Method Markov Processes MRF Model Neighbourhood Line Process Optical, Image And Video Signal Processing Optimisation Optimisation Technique PU Algorithm Radar Equipment Radar Imaging Radar Interferometry Synthetic Aperture Radar System And Application |
| Content Type | Text |
| Resource Type | Article |
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