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An Accurate Phase Unwrapping Algorithm Based on Reliability Sorting and Residue Mask

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2 Author(s)
Zhiyang Dai ; Sch. of Earth & Space Sci., Univ. of Sci. & Technol. of China, Hefei, China ; Xianjie Zha

An accurate phase unwrapping algorithm is presented for reconstructing the true phase field for deformation interferograms. This algorithm is a combination of reliability sorting and residue mask, while introducing more reliable unwrapping fiducial information. In tests conducted with a pyramidal phase image, a complex simulated interferogram, and a real deformation interferogram, the proposed algorithm successfully unwraps the images with perfect precision. This algorithm is also shown to be superior to the prevailing improved Goldstein's residue-cut algorithm in terms of precision.

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Geoscience and Remote Sensing Letters, IEEE  (Volume:9 ,  Issue: 2 )