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Pan-European forest/non forest mapping with Landsat ETM+ and Corine Land Cover 2000 data / A. Pekkarinen in ISPRS Journal of photogrammetry and remote sensing, vol 64 n° 2 (March - April 2009)  

Public [article]  inISPRS Journal of photogrammetry and remote sensing > vol 64 n° 2 (March - April 2009) . - pp 171 - 183 Titre : Pan-European forest/non forest mapping with Landsat ETM+ and Corine Land Cover 2000 data Type de document : Article/Communication Auteurs : A. Pekkarinen, Auteur ; L. Reithmaier, Auteur ; Peter Strobl, Auteur Année de publication : 2009 Article en page(s) : pp 171 - 183 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image optique [Termes IGN] analyse comparative [Termes IGN] analyse de groupement [Termes IGN] analyse spectrale [Termes IGN] carte d'occupation du sol [Termes IGN] classification barycentrique [Termes IGN] classification dirigée [Termes IGN] Corine Land Cover [Termes IGN] Europe (géographie politique) [Termes IGN] forêt [Termes IGN] image Landsat-ETM+ [Termes IGN] segmentation d'image Résumé : (Auteur) This paper describes a simple and adaptive methodology for large area forest/non-forest mapping using Landsat ETM+ imagery and CORINE Land Cover 2000. The methodology is based on scene-by-scene analysis and supervised classification. The fully automated processing chain consists of several phases, including image segmentation, clustering, adaptive spectral representativity analysis, training data extraction and nearest-neighbour classification. This method was used to produce a European forest/non-forest map through the processing of 415 Landsat ETM+ scenes. The resulting forest/non-forest map was validated with three independent data sets. The results show that the map’s overall point-level agreement with our validation data generally exceeds 80%, and approaches 90% in central European conditions. Comparison with country-level forest area statistics shows that in most cases the difference between the forest proportion of the derived map and that computed from the published forest area statistics is below 5%. Copyright ISPRS Numéro de notice : A2009-096 Affiliation des auteurs : non IGN Thématique : FORET/IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.isprsjprs.2008.09.004 En ligne : https://doi.org/10.1016/j.isprsjprs.2008.09.004 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29726 [article]

Exemplaires(2)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
081-09021	RAB	Revue	Centre de documentation	En réserve L003	Disponible
081-09022	RAB	Revue	Centre de documentation	En réserve L003	Disponible

The design and the development of a hyperspectral and multispectral airborne mapping system / P.V. Gorsevski in ISPRS Journal of photogrammetry and remote sensing, vol 64 n° 2 (March - April 2009)  

Public [article]  inISPRS Journal of photogrammetry and remote sensing > vol 64 n° 2 (March - April 2009) . - pp 184 - 192 Titre : The design and the development of a hyperspectral and multispectral airborne mapping system Type de document : Article/Communication Auteurs : P.V. Gorsevski, Auteur ; P. Gessler, Auteur Année de publication : 2009 Article en page(s) : pp 184 - 192 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s) [Termes IGN] capteur aérien [Termes IGN] capteur hyperspectral [Termes IGN] capteur multibande [Termes IGN] centrale inertielle [Termes IGN] GPS-INS [Termes IGN] instrument aéroporté [Termes IGN] récepteur GPS Résumé : (Auteur) Flexible and cost-effective tools for rapid image acquisition and natural resource mapping are needed by land managers. This paper describes the hardware and software architecture of a low-cost system that can be deployed on a light aircraft for rapid data acquisition. The Hyperspectral and Multispectral Cameras for Airborne Mapping (HAMCAM) was designed and developed in the Geospatial Laboratory for Environmental Dynamics at the University of Idaho as a student-learning tool, and to enhance the existing curriculum currently offered. The system integrates a hyperspectral sensor with four multispectral cameras, an Inertial Navigation System (INS), a Wide Area Augmentation System (WAAS)-capable Global Positioning System (GPS), a data acquisition computer, and custom software for running the sensors in a variety of different modes. The outputs include very high resolution imagery obtained in four adjustable visible and near-infrared bands from the multispectral imager. The hyperspectral sensor acquires 240 spectral bands along 2.7 nm intervals within the 445–900 nm range. The INS provides aircraft pitch, roll and yaw information for rapid geo-registration of the imagery. This paper will discuss the challenges associated with the development of the system and the integration of components and software for implementation of this system for natural resource management applications. In addition, sample imagery acquired by the sensor will be presented. Copyright ISPRS Numéro de notice : A2009-097 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.isprsjprs.2008.09.002 En ligne : https://doi.org/10.1016/j.isprsjprs.2008.09.002 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29727 [article]

Exemplaires(2)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
081-09021	RAB	Revue	Centre de documentation	En réserve L003	Disponible
081-09022	RAB	Revue	Centre de documentation	En réserve L003	Disponible

A graph cut optimization guided by 3D-features for surface height recovery / Nesrine Chehata in ISPRS Journal of photogrammetry and remote sensing, vol 64 n° 2 (March - April 2009)  

Public [article]  inISPRS Journal of photogrammetry and remote sensing > vol 64 n° 2 (March - April 2009) . - pp 193 - 203 Titre : A graph cut optimization guided by 3D-features for surface height recovery Type de document : Article/Communication Auteurs : Nesrine Chehata , Auteur ; Franck Jung , Auteur ; Georges Stamon, Auteur Année de publication : 2009 Article en page(s) : pp 193 - 203 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Photogrammétrie numérique [Termes IGN] description multiniveau [Termes IGN] données localisées 2D [Termes IGN] données localisées 3D [Termes IGN] données maillées [Termes IGN] données vectorielles [Termes IGN] graphe [Termes IGN] image à résolution submétrique [Termes IGN] milieu urbain [Termes IGN] modèle 3D de l'espace urbain [Termes IGN] optimisation (mathématiques) [Termes IGN] programmation par contraintes [Termes IGN] rapport base hauteur Résumé : (Auteur) This paper aims to present a new approach for automatic urban scene modeling from high-resolution satellite images with focus on building areas. The input data consist of a panchromatic stereo pair of satellite images, with a submetric resolution of 50–70 cm and a low Base to Height ratio B/H [0.05–0.2]. Since a detailed extraction and description of building roofs is complex in a satellite context, we propose to describe the scene by means of a 3D-surface that provides either raster or vector information using different description levels. The main contribution of our approach is the use of 3D-features such as 3D-segments and 3D-facets to guide the optimization process. 3D surface modeling can be formulated as a matching problem that can be solved by graph cut minimization. The novelty consists in the original construction of the graph to combine input 2D data and 3D feature constraints to control the final surface. Complementary features are used. 3D-segments modelize discontinuities and 3D-facets help to regularize the surface by planar patches. The proposed automatic system provides a surface height map with subpixellar precision. Moreover, the system is generic and extensible to other data such as aerial and terrestrial images or to a multiple view context. External databases can also be easily added to the process to constrain the optimization. Copyright ISPRS Numéro de notice : A2009-098 Affiliation des auteurs : IGN (1940-2011) Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.isprsjprs.2008.10.003 En ligne : https://doi.org/10.1016/j.isprsjprs.2008.10.003 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29728 [article]

Exemplaires(2)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
081-09021	RAB	Revue	Centre de documentation	En réserve L003	Disponible
081-09022	RAB	Revue	Centre de documentation	En réserve L003	Disponible

GIS applications for military operations in coastal zones / S. Fleming in ISPRS Journal of photogrammetry and remote sensing, vol 64 n° 2 (March - April 2009)  

Public [article]  inISPRS Journal of photogrammetry and remote sensing > vol 64 n° 2 (March - April 2009) . - pp 213 - 222 Titre : GIS applications for military operations in coastal zones Type de document : Article/Communication Auteurs : S. Fleming, Auteur ; T. Jordan, Auteur ; et al., Auteur Année de publication : 2009 Article en page(s) : pp 213 - 222 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications SIG [Termes IGN] carte militaire [Termes IGN] cartographie numérique [Termes IGN] littoral [Termes IGN] outil d'aide à la décision [Termes IGN] représentation multiple [Termes IGN] système d'information géographique [Termes IGN] utilisateur militaire Résumé : (Auteur) In order to successfully support current and future US military operations in coastal zones, geospatial information must be rapidly integrated and analyzed to meet ongoing force structure evolution and new mission directives. Coastal zones in a military-operational environment are complex regions that include sea, land and air features that demand high-volume databases of extreme detail within relatively narrow geographic corridors. Static products in the form of analog maps at varying scales traditionally have been used by military commanders and their operational planners. The rapidly changing battlefield of 21st Century warfare, however, demands dynamic mapping solutions. Commercial geographic information system (GIS) software for military-specific applications is now being developed and employed with digital databases to provide customized digital maps of variable scale, content and symbolization tailored to unique demands of military units. Research conducted by the Center for Remote Sensing and Mapping Science at the University of Georgia demonstrated the utility of GIS-based analysis and digital map creation when developing large-scale (1:10,000) products from littoral warfare databases. The methodology employed–selection of data sources (including high resolution commercial images and Lidar), establishment of analysis/modeling parameters, conduct of vehicle mobility analysis, development of models and generation of products (such as a continuous sea–land DEM and geo-visualization of changing shorelines with tidal levels)–is discussed. Based on observations and identified needs from the National Geospatial-Intelligence Agency, formerly the National Imagery and Mapping Agency, and the Department of Defense, prototype GIS models for military operations in sea, land and air environments were created from multiple data sets of a study area at US Marine Corps Base Camp Lejeune, North Carolina. Results of these models, along with methodologies for developing large-scale littoral warfare databases, aid the National Geospatial-Intelligence Agency in meeting littoral warfare analysis, modeling and map generation requirements for US military organizations. Copyright ISPRS Numéro de notice : A2009-099 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.isprsjprs.2008.10.004 En ligne : https://doi.org/10.1016/j.isprsjprs.2008.10.004 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29729 [article]

Exemplaires(2)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
081-09021	RAB	Revue	Centre de documentation	En réserve L003	Disponible
081-09022	RAB	Revue	Centre de documentation	En réserve L003	Disponible