Please use this identifier to cite or link to this item:
Title: Two new practical methods for phase unwrapping
Authors: Lim, Hock 
Xu, Wei 
Huang, Xiaojing 
Issue Date: 1995
Citation: Lim, Hock,Xu, Wei,Huang, Xiaojing (1995). Two new practical methods for phase unwrapping. International Geoscience and Remote Sensing Symposium (IGARSS) 1 : 196-198. ScholarBank@NUS Repository.
Abstract: In phase unwrapping, an error made at a pixel has a tendency to spread and corrupt the phase values over large areas of an interferogram. It is therefore important that a phase unwrapping algorithm be designed with a mechanism to unwrap the areas with reliable data first and to stop itself from unwrapping across a pixel at which the unwrapped phase cannot be determined with confidence. Two new practical phase unwrapping methods incorporating this requirement are reported in this paper. The first method uses the consistency between predicted phase values as a measure of confidence. The second method considers local variations of the phase value and decides if appropriate unwrapping of individual pixels will allow confident fitting of a plane over a 3-by-3 pixel region. Both of these methods have been found to be capable of unwrapping reasonably noisy SAR interferograms.
Source Title: International Geoscience and Remote Sensing Symposium (IGARSS)
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

Page view(s)

checked on Nov 24, 2018

Google ScholarTM


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.