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Combining Sentinel-1 and Sentinel-2 Time Series via RNN for object-based land cover classification

Lenco D., Gaetano R., Interdonato R., Osé K., Tong Minh D.H.. 2019. In : IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium proceedings. Yokohama : IEEE, p. 4881-4884. IGARSS 2019, 2019-07-28/2019-08-02, Yokohama (Japon).

DOI: 10.1109/IGARSS.2019.8898458

Radar and Optical Satellite Image Time Series (SITS) are sources of information that are commonly employed to monitor earth surfaces for tasks related to ecology, agriculture, mobility, land management planning and land cover monitoring. Many studies have been conducted using one of the two sources, but how to smartly combine the complementary information provided by radar and optical SITS is still an open challenge. In this context, we propose a new neural architecture for the combination of Sentinel-1 (S1) and Sentinel-2 (S2) imagery at object level, applied to a real-world land cover classification task. Experiments carried out on the Reunion Island, a overseas department of France in the Indian Ocean, demonstrate the significance of our proposal.

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