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Ranking evolution maps for Satellite Image Time Series exploration: application to crustal deformation and environmental monitoring

Nicolas Méger 1, 2, 3 Christophe Rigotti 4, 5, 6 Catherine Pothier 7 Tuan Nguyen 1, 2, 3, 4 Felicity Lodge 1, 2, 3 Lionel Gueguen 8 Rémi Andréoli 9 Marie-Pierre Doin 10, 1, 11, 12, 13, 14 Mihai Datcu 15
1 USMB [Université de Savoie] [Université de Chambéry] - Université Savoie Mont Blanc
2 EPU [Ecole Polytechnique Universitaire de l'Université de Savoie] - Polytech Annecy-Chambéry
3 LISTIC - Laboratoire d'Informatique, Systèmes, Traitement de l'Information et de la Connaissance
4 DM2L - Data Mining and Machine Learning
LIRIS - Laboratoire d'InfoRmatique en Image et Systèmes d'information
5 BEAGLE - Artificial Evolution and Computational Biology
LIRIS - Laboratoire d'InfoRmatique en Image et Systèmes d'information, Inria Grenoble - Rhône-Alpes, LBBE - Laboratoire de Biométrie et Biologie Evolutive - UMR 5558
6 LIRIS - Laboratoire d'InfoRmatique en Image et Systèmes d'information
7 imagine - Extraction de Caractéristiques et Identification
LIRIS - Laboratoire d'InfoRmatique en Image et Systèmes d'information
8 Uber Technologies
9 Bluecham SAS [Nouméa]
10 UGA [2016-2019] - Université Grenoble Alpes [2016-2019]
11 CNRS - Centre National de la Recherche Scientifique
12 IRD - Institut de Recherche pour le Développement
13 ISTerre - Institut des Sciences de la Terre
14 IFSTTAR - Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux
15 DLR - German Aerospace Center
Abstract : Satellite Image Time Series (SITS) are large datasets containing spatiotemporal information about the surface of the Earth. In order to exploit the potential of such series, SITS analysis techniques have been designed for various applications such as earthquake monitoring, urban expansion assessment or glacier dynamic analysis. In this paper, we present an unsupervised technique for browsing SITS in preliminary explorations, before deciding whether to start deeper and more time consuming analyses. Such methods are lacking in today’s analyst toolbox, especially when it comes to stimulating the reuse of the ever growing list of available SITS. The method presented in this paper builds a summary of a SITS in the form of a set of maps depicting spatiotemporal phenomena. These maps are selected using an entropy-based ranking and a swap randomization technique. The approach is general and can handle either optical or radar SITS. As illustrated on both kinds of SITS, meaningful summaries capturing crustal deformation and environmental phenomena are produced. They can be computed on demand or precomputed once and stored together with the SITS for further usage.
Keywords : Swap randomization Summarization Satellite Image Time Series Mutual information Crustal deformation Environmental monitoring
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https://hal.archives-ouvertes.fr/hal-01898015
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Submitted on : Tuesday, October 23, 2018 - 5:16:28 PM
Last modification on : Tuesday, June 1, 2021 - 2:08:09 PM
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ISTERRE | IFSTTAR | UNIV-LYON1 | INRIA | INSU | UNIV-SAVOIE | LIRIS | CARMEN | BIOENVIS | CNRS | EC-LYON | OSUG | IRD | INSA-GROUPE | LABEXIMU | UNIV-LYON2 | LISTIC | UDL | UGA

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Nicolas Méger, Christophe Rigotti, Catherine Pothier, Tuan Nguyen, Felicity Lodge, et al.. Ranking evolution maps for Satellite Image Time Series exploration: application to crustal deformation and environmental monitoring. Data Mining and Knowledge Discovery, Springer, 2019, 33 (1), pp.131-167. ⟨10.1007/s10618-018-0591-9⟩. ⟨hal-01898015⟩

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