URBAN SITES CHANGE DETECTION BY MEANS OF SENTINEL-1 AND SENTINEL-2 TIME SERIES

Mattia Stasolla, Sophie Petit, Coraline Wyard, Gérard Swinnen, Xavier Neyt, Eric Hallot

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The Walloon Region is currently managing a database of more than 2000 'redevelopment sites', i.e. urban sites that were previously used for industrial activities and/or housing and that are now abandoned. The administration needs to keep this inventory up-to-date so that the necessary urban planning could be done; however, at the moment, this information is obtained via time-consuming on field campaigns. Thanks to the launch of the Copernicus programme, free satellite data are now provided at high temporal resolution, and new monitoring approaches can be implemented. Leveraging a well-established changepoint detection method, this paper shows some preliminary results on how time series of Sentinel-1 and Sentinel-2 data could be jointly used to automatically detect changes in urban areas, thus providing the Walloon Region with a tool that can be exploited for a more efficient management of the 'redevelopment sites'.

Original languageEnglish
Title of host publication Proceedings of the 2021 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2021
Pages1065-1068
Number of pages4
DOIs
Publication statusPublished - 2021
Event2021 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2021 - Brussels, Belgium
Duration: 12 Jul 202116 Jul 2021

Conference

Conference2021 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2021
Country/TerritoryBelgium
CityBrussels
Period12/07/2116/07/21

Keywords

  • Change detection
  • Sentinel-1
  • Sentinel-2
  • time series
  • urban area

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