Abstract
Abstract. The Geomatics Division of the Centre Tecnològic de Telecomunicacions de Catalunya (CTTC) has been producing terrain displacement maps for more than 15 years using the PSIG software chain, developed entirely by the members of the aforesaid group. PSIG has reached a high level of maturity, being highly automated but also offering the user the possibility to fine-tune the set of critical parameters controlling the process. However, large areas with a high level of diversity often pose problems in finding a good quality solution using a single set of parameters. Improving the quality of the final terrain displacement map means being able to process very local and critical areas using specific sets of parameters; however, identifying such areas is a difficult process without suitable analysis tools. The VETools, a new software project still under development, but very close to its completion, target this problem. With the VETools it is possible to visualize the results produced by a previous PSIG global processing, analysing their quality, thus making possible to identify the local, critical areas, allowing the user to interactively experiment with specific sets of parameters for these areas, reprocessing them and reviewing the local results as many times as desired and, finally, merging all of them in a single, unique solution whose level of quality is appropriate for the whole area of interest. This work presents the current state of development of the VETools, describing their features and the challenges overcome.
Highlights
The Geomatics Division (GD) of the Centre Tecnològic de Telecomunicacions de Catalunya (CTTC)(http://geomatics.cttc.es/remote-sensing/) has a long experience in generating terrain displacement maps from satellite SARDifferential Interferometry (DInSAR) techniques.In the frame of this research line, the Persistent Scatterer Interferometry chain of the Geomatics division (PSIG) (Devanthéry et al, 2014) has been developed
The PSIG processing chain and software are under continuous improvement, and adaptation for a wide range of related applications
Nowadays the GD is focusing in developing complementary tools to improve (1) the practical exploitation of the PSI derived displacement maps for any final users (Barra et al, 2017), (Tomás et al, 2019), (Navarro et al, 2020), and (2) the “user experience” using the PSIG chain itself: the VETools, which are the subject of this work
Summary
(http://geomatics.cttc.es/remote-sensing/) has a long experience in generating terrain displacement maps from satellite SAR. Nowadays the GD is focusing in developing complementary tools to improve (1) the practical exploitation of the PSI derived displacement maps for any (even not expert) final users (Barra et al, 2017), (Tomás et al, 2019), (Navarro et al, 2020), and (2) the “user experience” using the PSIG chain itself: the VETools, which are the subject of this work. VETools allows to generate and integrate local results obtained over several critical zones of the target area ( having a local tuning of the parameters) and to visualize, check, and edit the results. These tools are very useful processing areas that are difficult from the point of view of the DInSAR technique application,
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
