15 November 2007 A region-cutting InSAR phase unwrapping algorithm based on SDFP
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Proceedings Volume 6787, MIPPR 2007: Multispectral Image Processing; 67870B (2007) https://doi.org/10.1117/12.743018
Event: International Symposium on Multispectral Image Processing and Pattern Recognition, 2007, Wuhan, China
Abstract
Phase unwrapping is the key step in deriving topographic information from Interferometric SAR. We propose a region-cutting InSAR phase unwrapping method based on Shortest Distance First Principle(SDFP), the interferogram is cut into the residue regions which contain all the residues and the non-residue regions which contain no residue. The pixels of the non-residue regions are unwrapped using modified Itoh's method firstly while the residue regions have been isolated, then region-growing strategy of region-growing phase unwrapping algorithm is applied to unwrap the pixels of residue regions from the unwrapped non-residue regions. The test performed on the real wrapped phase data obtained from the interferometry of a pair SAR images shows the proposed algorithm is fast and efficient even in low-quality regions.
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Yaonan Wang, Yaonan Wang, Ruyan He, Ruyan He, } "A region-cutting InSAR phase unwrapping algorithm based on SDFP", Proc. SPIE 6787, MIPPR 2007: Multispectral Image Processing, 67870B (15 November 2007); doi: 10.1117/12.743018; https://doi.org/10.1117/12.743018
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