ZHAN Zongqian, QIAN Jun, SHU Ning. A Method of Phase Unwrapping Based on Region-segmentation and Encoding[J]. Geomatics and Information Science of Wuhan University, 2002, 27(3): 316-320.
Citation: ZHAN Zongqian, QIAN Jun, SHU Ning. A Method of Phase Unwrapping Based on Region-segmentation and Encoding[J]. Geomatics and Information Science of Wuhan University, 2002, 27(3): 316-320.

A Method of Phase Unwrapping Based on Region-segmentation and Encoding

  • This paper describes an unwrapping phase method based on region-segmentation and coding.The algorithm can easily unwrap noisy interferograms,but it will meet some problems when the phase contains aliasing.In addition,in order to perform the calculation easily when finishing region-segmentation,a method of encoding has been proposed.The main steps are:① Pretreatment with the medium and gradient-based adaptive filter in order that the segmentation can be carried out correctly;② The region-segmentation with the familiar algorithm;③ Encoding the regions from the previous step;④ Calculating the unwrapped phase by easy account.To verify the proposed algorithm,the algorithm has been tested with simulative data and actual data.
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