Fine Unwrapping Phase for Deformation Control
Year: 2022
Type: preprint
Abstract: Earth observation and environmental control are becoming more important where the realization of DEM by the technique of interferometry of RSO images facilitates the control of terrestrial deformations, which is the subject of this paper. The unwrapping phase is a very important step in the interferometry process, especially to treat it carefully in steep degraded and mountainous ground. We have focused on the reduction and sometimes the elimination of the residues in flat terrains and otherwise to keep the maximum of the residues in the very steep sites. For this purpose, the methods developed and proposed are based on a transformation by the ISODATA which is based on KMEANS and the double passage of the median filter, and this in order to limit the creation of the brunch-Cut for the progress of the filtered interferogram (elimination of large black spot on The Brunch-Cut image).The tests of this method were carried out on several sites, and showed good results.
Source: Research Square
Author: Hadj Sahraoui omar
Institution: Agence Spatiale Algérienne
Language: English
Subfield: Geophysics
Field: Earth and Planetary Sciences
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W4213052047