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13 September 2011 SENTINEL-2 level 1-image processing and performances
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In partnership with the European Commission and in the frame of the Global Monitoring for Environment and Security (GMES) program, the European Space Agency (ESA) is developing the Sentinel-2 optical imaging mission devoted to the operational monitoring of land and coastal areas. The Sentinel-2 mission is based on a satellites constellation deployed in polar sun-synchronous orbit. While ensuring data continuity of former SPOT and LANDSAT multi-spectral missions, Sentinel-2 will also offer a wide range of improvements such as a global coverage, a large field of view (290km), a high revisit capability (5 days with two satellites), a high resolution (10m, 20m and 60m) and multi-spectral imagery (13 spectral bands). In this context, the Centre National d'Etudes Spatiales (CNES) supports ESA to define the system image products and to prototype the relevant image processing techniques. First, this paper presents the Sentinel-2 system and the image products that will be delivered: starting from raw decompressed images up to accurate ortho-images in Top of Atmosphere reflectances. The stringent image quality requirements are also described, in particular the very accurate target geo-location. Then, the prototyped image processing techniques will be addressed. Both radiometric and geometric processing will be described with a special focus on the automatic enhancement of the geometric physical model involving a global set of reference data. Finally, the very promising results obtained by the prototype will be presented and discussed. The radiometric and geometric performances will be provided as well as the associated computing time estimation on the target platform.
© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Simon Baillarin, Aimé Meygret, Cécile Dechoz, Philippe Martimort, Beatrice Petrucci, Sophie Lachérade, Claudia Isola, Riccardo Duca, François Spoto, Patrice Henry, Ferran Gascon, Stéphanie Auriol, Arnaud Kelbert, and Vincent Poulain "SENTINEL-2 level 1-image processing and performances", Proc. SPIE 8153, Earth Observing Systems XVI, 81530P (13 September 2011);


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