ORFEO Accompaniment Program: Toward the Preparation of the Thematic Use of PLEIADES Imagery G. BLANCHET CNES (DCT/SI/AP)

Transcription

1 ORFEO Accompaniment Program: Toward the Preparation of the Thematic Use of PLEIADES Imagery G. BLANCHET CNES (DCT/SI/AP) 1

2 Three phases : Phase 1 : ORFEO Program Overview (1/3) Identification of users needs (Services, Value-added Products, Tools) Methodology state of the art (R&D; assessment of priority functionalities) 2003 Methodological work Thematic work Meth/The m meeting Thematic meeting Phase 1 Phase 2 Meth/The m meeting

3 2003 Three phases : Phase 1 : Identification of users needs (Services, Value-added Products, Tools) Methodology state of the art (R&D; priority functionalities) Phase 2 : Methodological work ORFEO Program Overview (2/3) Products & services development (cf. thematic studies) Development of specific tools (R&T; VHR database, OTB) Feedbacks of thematic WG to methodological developments Thematic work Meth/The Them. Them. m meetin meetin meeting g g Phase 1 Phase

4 Three phases : ORFEO Program Overview (3/3) Phase 3 (from Jan 2010): Thematic in flight commissionning (Validation thematique) of PLEIADES data 2003 Methodological work PLEIADES Thematic work Meth/The m meeting Them. meetin g Phase 1 Phase 2 Them. meetin g 2011 Them. meetin g Phase 3 4

5 THEMATIC studies 5

6 WG4: Geophysic Thematics: landslide, earthquake, vulcanology, cryosphere Objects: land surface deformation,fault,terrac es 8 Thematic Working Groups WG5: Hydrology Thematics: flood prediction, water ecosystem, water quality. Objects: hydro. network, linears, water bodies, soil & veget. characts., riverbed hydromorpholy WG3: Cartography Thematics: cartographic DB, ortho-image DB, DTM; 3D urban mapping, land use Objects: elevation, topographic elements WG2: Risks Thematics: flood fire earthquake humanitarian crisis Objects: impacted or vulnerable areas (loc. & intensity) Thematic Readiness Level WG1: Littoral Thematics: sea bottom, anthropic pressure, coastline geomorphology Objects: bathy., benthic typo., geomorph. structures, ships, plume, wave spectrum, WG7: Agriculture Thematics: precision farming, agri-environmental measure control Objects: Field geometry, land-use, soil and crop charact., agric. practices WG6: Forest Thematics: forest inventory and mapping, forestry management Objects: dendrometry, species, forest state, forestry WG8: Defence Thematics: Large gathering event, object detection, land survey, illicit activity control Objects: Key targets, road network state, logistic areas 6

7 Cartography and town planning WG3 7

8 floodings forest fires storms disaster mitigation industrial risks forest mapping DTM Topographic elements: road, hedges, paths, hydrological network "#$% abroad mapping : DTM, ortho-photo, 3D model surface covers : Ortho / Land parcels topo DB update (built, infra) altimetry & DTM coastal mapping urban and industrial mapping 3D surface & city models land cover, vegetation topographic features DTM hydro. network subsidences sismology volcanology erosion coastal land cover/use topo-bathymetry hydrodynamics navigation security!! land cover mapping agro-environment measures agroclimatic disaster 8

9 Studies Phase 2 Cartographic database consistency along national borders, IGN - Study completed in 2008 Early detection of changes in topographic information, IGN - Study completed in D semi-automatic building shape identification, IGN - Study completed in 2008 Evaluation précision MNT (orographie), IGN -?? CSK for multi-risk applications on urban areas and infrastructures, INRIA Monitoring urban areas by X band interferometry, ENST Paris Potential of CSK for DTM retrieval, CNES 9

10 1: Cartographic database consistency along national borders French and Swiss understanding of their national border QuickBird Ortho image Geneva city 10

11 Potential contributions of PLEIADES to IGN activities 2: A new data source in the IGN early warning network for change detection monitoring and cartographic database updating updating speed up the collection process of changes winter images help detect changes in forest or inaccessible areas input for stereo data plotting within Z< 50 cm rms 11

12 Potential contributions of PLEIADES to IGN activities 2: Retrieving 3D shape building from PLEIADES simulated stereo images 2D data base (cadastre) PLEIADES data + DSM orthoimage Original DSM Rasterized model roof data base Matching process ( accounting for satellite DEM noise) Semi-automatic tool, with user-interactive interface Accuracy: -1.2m vertical RMS - 90% of building roof properly identified plane facettes 3D model 12 ORFEO thematic WP3 January 26th 2010

13 Combined view over Toulouse Hospital area : Pleiades orthoimage drapped on DTM and 3D models 13

14 3 D urban PLEIADES future products 14

15 Potential contributions of PLEIADES to IGN activities Complementing aerial survey of the national territory High coverage capability to complement the aerial survey of the national territory Homogenous geometry and radiometry per french department Observing conditions shall be constrainted to keep image content close to 50 cm IGN standards 15

16 Studies planned for phase 3 Strategy: 3 experimental sites, multi-thematic Studies driven by CNES (data, methodological aspects, ) and IGN (tools, MATIS, ) Thematical needs specified by the end-users (utilisateur final (UF)) Partner lab to supervise an internship (stage M2) Experimental sites: Toulouse Arcachon/Bordeaux La Réunion 16

17 Studies planned for phase 3 Site Toulouse UF : l AUAT (Agence d Urbanisme et d Aménagement du Territoire Toulouse Aire urbaine), CETE SO (Centre d Etudes Techniques de l Equipement), collectivités territoriales Lab : CESBIO, CNES, ECOTONE Internship description: Urban morphology [cartographie et aménagement du territoire sur l agglomération toulousaine (morphologie urbaine)] Roof detection [Identification des toitures susceptibles d accueillir des panneaux photovoltaïques] Landscape characterization [caractérisation trame verte/bleue en paysage péri-urbain] Site Arcachon/Bordeaux UF: CETE SO, DDA Gironde, DREAL Lab : EGID/Université de Bordeaux Internship description: Change detection [détection de changement et mise à jour du cadastre à partir d imagerie Pleiades] Site Réunion UF: DIREN (DIrection Régionale de l ENvironnement) Lab : IGN/MATIS Aux data: Litto 3D, orthophotos 2008 Internship description: Change detection [Application des méthodes de détection de changement d IGN MATIS aux problématiques de la DIREN Réunion] 17

18 Program GT3 (Cartographie) [14h15-17h30] Introduction GT3 : Synthèse des études passées & objectifs recette en vol thématique [G. Blanchet/CNES; 15 min] Présentation des études 2010/recette en vol thématiques PLEIADES Etudes Agglomération Toulousaine [V.Demarez/CESBIO; 30 min]: - Morphologie urbaine - Caractérisation trame verte/bleue sur paysage péri-urbain - Détection de surface de toiture Etude Arcachon/Bordeaux: Détection de changement et mis à jour du cadastre à partir d imagerie PLEIADES [N.Chehata/EGID; 10 min] Etude Ile de la Réunion :Application des méthodes de détection de changement d IGN MATIS aux problématiques de la DIREN Réunion [A. Le Bris/IGN MATIS & J-P Cantou/IGN Espace; 10 min] Méthodologie [45 min] Analyse multirésolution d images satellitaires et son application à la classification de blocs urbains [C. Kurtz/LSIIT & A.Puissant/LIVE; 15 min] Détection de changements dans les bases de données topographiques (du type BDTopo IGN) à l aide d outils de classification de l occupation du sol [A. Le Bris/IGN MATIS; 15 min] Etude étalement urbain [L. Hubert-Moy & S. Corgne COSTEL ; 15 min] Besoin des utilisateurs finaux [20 min] Cartographie et caractérisation trame verte trame bleue (F.Gazo & G. Bur/CETE SO/Pôle satellitaire MEEDDM ; 15 min) Discussion [1h00] 18