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Laplacian eigenmaps-based polarimetric dimensionality reduction for SAR image classification / S.T. Tu in IEEE Transactions on geoscience and remote sensing, vol 50 n° 1 (January 2012)
[article]
Titre : Laplacian eigenmaps-based polarimetric dimensionality reduction for SAR image classification Type de document : Article/Communication Auteurs : S.T. Tu, Auteur ; J.H. Chen, Auteur ; W. Yang, Auteur ; et al., Auteur Année de publication : 2012 Article en page(s) : pp 170 - 179 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image radar et applications
[Termes IGN] image radar moirée
[Termes IGN] occupation du sol
[Termes IGN] polarimétrie radarRésumé : (Auteur) In this paper, we propose a novel scheme of polarimetric synthetic aperture radar (PolSAR) image classification. We apply Laplacian eigenmaps (LE), a nonlinear dimensionality reduction (NDR) technique, to a high-dimensional polarimetric feature representation for PolSAR land-cover classification. A wide variety of polarimetric signatures are chosen to construct a high-dimensional polarimetric manifold which can be mapped into the most compact low-dimensional structure by manifold-based dimensionality reduction techniques. This NDR technique is employed to obtain a low-dimensional intrinsic feature vector by the LE algorithm, which is beneficial to PolSAR land-cover classification owing to its local preserving property. The effectiveness of our PolSAR land-cover classification scheme with LE intrinsic feature vector is demonstrated with the RadarSat-2 C-band PolSAR data set and the 38th Research Institute of China Electronics Technology Group Corporation X-band PolInSAR data set. The performance of our method is measured by the separability in the feature space and the accuracy of classification. Comparisons on the feature space show that the LE intrinsic feature vector is more separable than different original feature vectors. Our LE intrinsic feature vector also improves the classification accuracy. Numéro de notice : A2012-033 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1109/TGRS.2011.2168532 Date de publication en ligne : 26/10/2011 En ligne : https://doi.org/10.1109/TGRS.2011.2168532 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31481
in IEEE Transactions on geoscience and remote sensing > vol 50 n° 1 (January 2012) . - pp 170 - 179[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 065-2012011 RAB Revue Centre de documentation En réserve L003 Disponible MapCache : une solution de tuilage WMS open source / Anonyme in Géomatique expert, n° 84 (01/01/2012)
[article]
Titre : MapCache : une solution de tuilage WMS open source Type de document : Article/Communication Auteurs : Anonyme, Auteur Année de publication : 2012 Article en page(s) : pp 42 - 45 Langues : Français (fre) Descripteur : [Vedettes matières IGN] Géomatique web
[Termes IGN] couche thématique
[Termes IGN] dalle
[Termes IGN] données localisées numériques
[Termes IGN] données maillées
[Termes IGN] logiciel de visualisation
[Termes IGN] logiciel libre
[Termes IGN] visualisation de données
[Termes IGN] Web Map ServiceRésumé : (Auteur) Servir des données géographiques, particulièrement raster, constitue une charge extrêmement lourde pour un serveur, si celui-ci ne dispose pas d'outils spéciaux. Parmi ceux-ci, le serveur de tuiles est sans doute le plus utile. MapCache, anciennement mod-geocache, est un serveur open source récent et performant, destiné à travailler de concert avec MapServer. Présentation du logiciel par son concepteur, Thomas Bonfort. Numéro de notice : A2012-024 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31472
in Géomatique expert > n° 84 (01/01/2012) . - pp 42 - 45[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 265-2012011 RAB Revue Centre de documentation En réserve L003 Disponible IFN-001-P001138 PER Revue Nogent-sur-Vernisson Salle périodiques Exclu du prêt
Titre : Object-based interpretation methods for mapping built-up areas Type de document : Thèse/HDR Auteurs : Leena Matikainen, Auteur Editeur : Helsinki : Finnish Geodetic Institute FGI Année de publication : 2012 Collection : Publications of the Finnish Geodetic Institute, ISSN 0085-6932 num. 147 Importance : 83 p. Format : 21 x 30 cm ISBN/ISSN/EAN : 978-951-711-293-2 Note générale : Bibliographie
Doctoral dissertation for the degree of Doctor of Science in TechnologyLangues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications photogrammétriques
[Termes IGN] analyse d'image orientée objet
[Termes IGN] bâtiment
[Termes IGN] détection de changement
[Termes IGN] détection du bâti
[Termes IGN] données lidar
[Termes IGN] données localisées 3D
[Termes IGN] image aérienne
[Termes IGN] image radar moirée
[Termes IGN] impulsion laser
[Termes IGN] occupation du sol
[Termes IGN] segmentation d'image
[Termes IGN] zone urbaineIndex. décimale : 30.60 Géodésie spatiale Résumé : (Auteur) There is a growing demand for high-quality spatial data and for efficient methods of updating spatial databases. In the present study, automated object-based interpretation methods were developed and tested for coarse land use mapping, detailed land cover and building mapping, and change detection of buildings. Various modern remotely sensed datasets were used in the study. An automatic classification tree method was applied to building detection and land cover classification to automate the development of classification rules. A combination of a permanent land cover classification test field and the classification tree method was suggested and tested to allow rapid analysis and comparison of new datasets. The classification and change detection results were compared with up-to-date map data or reference points to evaluate their quality. The combined use of airborne laser scanner data and digital aerial imagery gave promising results considering topographic mapping. In automated building detection using laser scanner and aerial image data, 96% of all buildings larger than 60 m2 were correctly detected. This accuracy level (96%) is compatible with operational quality requirements. In automated change detection, about 80% of all reference buildings were correctly classified. The overall accuracy of a land cover classification into buildings, trees, vegetated ground and non-vegetated ground using laser scanner and aerial image data was 97% compared with reference points. When aerial image data alone were used, the accuracy was 74%. A comparison between first pulse and last pulse laser scanner data in building detection was also carried out. The comparison showed that the use of last pulse data instead of first pulse data can improve the building detection results. The results yielded by automated interpretation methods could be helpful in the manual updating process of a topographic database. The results could also be used as the basis for further automated processing steps to delineate and reconstruct objects. The synthetic aperture radar (SAR) and optical satellite image data used in the study have their main potential in land cover monitoring applications. The coarse land use classification of a multitemporal interferometric SAR dataset into built-up areas, forests and open areas lead to an overall accuracy of 97% when compared with reference points. This dataset also appeared to be promising for classifying built-up areas into subclasses according to building density. Important topics for further research include more advanced interpretation methods, new and multitemporal datasets, optimal combinations of the datasets, and wider sets of objects and classes. From the practical point of view, work is needed in fitting automated interpretation methods in operational mapping processes and in further testing of the methods. Note de contenu : 1. INTRODUCTION
1.1 Background and motivation
1.2 Hypothesis
1.3 Objectives of the study
1.4 Structure and contribution of the study
2. LITERATURE REVIEW
2.1 General
2.2 Object-based image analysis
2.3 Classification trees
2.4 Mapping built-up areas using coherence and intensity from interferometric SAR images
2.5 Mapping buildings and land cover using laser scanner and aerial image data
2.5.1 Building detection
2.5.2 Land cover classification
2.6 Change detection of buildings using laser scanner and aerial image data
3. MATERIALS AND METHODS
3.1 Study areas and materials
3.2 Methods
3.2.1 Method development for mapping built-up areas
3.2.2 Quality evaluation
4. RESULTS
4.1 Mapping built-up areas using a multitemporal interferometric SAR dataset
4.1.1 Land use classification
4.1.2 Further analysis of built-up areas
4.2 Building detection using laser scanner and aerial image data
4.3 Change detection of buildings
4.4 Land cover mapping using classification trees, test field points, and various input datasets
5. DISCUSSION
5.1 Methods developed for mapping built-up areas
5.2 Quality of the results
5.3 Feasibility of the methods for practical mapping applications
5.4 Other studies and developments
5.5 Further research
6. SUMMARY AND CONCLUSIONSNuméro de notice : 14649 Affiliation des auteurs : non IGN Autre URL associée : URL page Thématique : IMAGERIE Nature : Thèse étrangère Note de thèse : Doctoral thesis : Technology : Aalto University : 2012 Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=62677 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 14649-01 33.60 Livre Centre de documentation Photogrammétrie - Lasergrammétrie Disponible Documents numériques
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14649_dissert_fgi_object-based_interpretation_methods_matikainen.pdfAdobe Acrobat PDF Provably correct and complete transaction rules for updating 3D city models / G. Groger in Geoinformatica, vol 16 n° 1 (January 2012)
[article]
Titre : Provably correct and complete transaction rules for updating 3D city models Type de document : Article/Communication Auteurs : G. Groger, Auteur ; L. Plumer, Auteur Année de publication : 2012 Article en page(s) : pp 131 - 164 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique
[Termes IGN] base de règles
[Termes IGN] CityGML
[Termes IGN] cohérence géométrique
[Termes IGN] exhaustivité des données
[Termes IGN] mise à jour de base de données
[Termes IGN] modèle 3D de l'espace urbain
[Termes IGN] objet géographique complexeRésumé : (Auteur) The shapes of our cities change very frequently. These changes have to be reflected in data sets representing urban objects. However, it must be assured that frequent updates do not affect geometric-topological consistency. This important aspect of spatial data quality guarantees essential assumptions on which users and applications of 3D city models rely: viz. that objects do not intersect, overlap or penetrate mutually, or completely cover one another. This raises the question how to guarantee that geometric-topological consistency is preserved when data sets are updated. Hence, there is a certain risk that plans and decisions which are based on these data sets are erroneous and that the tremendous efforts spent for data acquisition and updates become vain. In this paper, we solve this problem by presenting efficient transaction rules for updating 3D city models. These rules guarantee that geometric-topological consistency is preserved (Safety) and allow for the generation of arbitrary consistent 3D city models (Completeness). Safety as well as completeness is proven with mathematical rigor, guaranteeing the reliability of our method. Our method is applicable to 3D city models, which define—besides the terrain surface—complex spatial objects like buildings with rooms and storeys as interior structures, as well as bridges and tunnels. Those objects are represented as aggregations of solids, and their surfaces are complex from a topology point of view. 3D GIS models like CityGML, which are widely used to represent cities, provide the means to define semantics, geometry and topology, but do not address the problem of maintaining consistency. Hence, our approach complements CityGML. Numéro de notice : A2012-084 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1007/s10707-011-0127-6 Date de publication en ligne : 25/05/2011 En ligne : https://doi.org/10.1007/s10707-011-0127-6 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31532
in Geoinformatica > vol 16 n° 1 (January 2012) . - pp 131 - 164[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 057-2012011 RAB Revue Centre de documentation En réserve L003 Disponible
Titre : Remote sensing of planet earth Type de document : Monographie Auteurs : Yann Chemin, Éditeur scientifique Editeur : London [UK] : IntechOpen Année de publication : 2012 Importance : 252 p. Format : 18 x 26 cm ISBN/ISSN/EAN : 978-953-51-4940-8 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] classification dirigée
[Termes IGN] classification par maximum de vraisemblance
[Termes IGN] distribution spatiale
[Termes IGN] géomorphologie
[Termes IGN] image satellite
[Termes IGN] neige
[Termes IGN] occupation du sol
[Termes IGN] surveillance géologique
[Termes IGN] système d'information géographiqueRésumé : (éditeur) Monitoring of water and land objects enters a revolutionary age with the rise of ubiquitous remote sensing and public access. Earth monitoring satellites permit detailed, descriptive, quantitative, holistic, standardized, global evaluation of the state of the Earth skin in a manner that our actual Earthen civilization has never been able to before. The water monitoring topics covered in this book include the remote sensing of open water bodies, wetlands and small lakes, snow depth and underwater seagrass, along with a variety of remote sensing techniques, platforms, and sensors. The Earth monitoring topics include geomorphology, land cover in arid climate, and disaster assessment after a tsunami. Finally, advanced topics of remote sensing covers atmosphere analysis with GNSS signals, earthquake visual monitoring, and fundamental analyses of laser reflectometry in the atmosphere medium. Note de contenu : 1- On the Use of Airborne Imaging Spectroscopy Data for the Automatic Detection and Delineation of Surface Water Bodies
2- Remote Sensing for Mapping and Monitoring Wetlands and Small Lakes in Southeast Brazil
3- Satellite-Based Snow Cover Analysis and the Snow Water Equivalent Retrieval Perspective over China
4- Seagrass Distribution in China with Satellite Remote Sensing
5- The Use of Remote Sensed Data and GIS to Produce a Digital Geomorphological Map of a Test Area in Central Italy
6- Analysis of Land Cover Classification in Arid Environment: A Comparison Performance of Four Classifiers
7- Application of Remote Sensing for Tsunami Disaster
8- GNSS Signals: A Powerful Source for Atmosphere and Earth’s Surface Monitoring
9- Acceleration Visualization Marker Using Moiré Fringe for Remote Sensing
10- Looking at Remote Sensing the Timing of an Organisation's Point of View and the Anticipation of Today's ProblemsNuméro de notice : 25880 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Recueil / ouvrage collectif DOI : 10.5772/2291 En ligne : https://doi.org/10.5772/2291 Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=95735 Amélioration d'une base de données d'empreintes de bâtiments pour la reconstruction 3D : une approche par découpe et fusion / Bruno Vallet in Revue Française de Photogrammétrie et de Télédétection, n° 195 (Novembre 2011)PermalinkUsing snakes for the registration of topographic road database objects to ALS features / J. Göpfert in ISPRS Journal of photogrammetry and remote sensing, vol 66 n° 6 (November 2011)PermalinkAutomatic revision of rules used to guide the generalisation process in systems based on a trial and error strategy / Patrick Taillandier in International journal of geographical information science IJGIS, vol 25 n° 10-12 (october december 2011)PermalinkDevelopment of a modified neural network-based land cover classification system using automated data selector and multiresolution remotely sensed data / S. Khorram in Geocarto international, vol 26 n° 6 (October 2011)Permalinkvol 65 n° 3 - September 2011 (Bulletin de Geomatica) / Canadian institute of geomatics = Association canadienne des sciences géomatiques (Canada)PermalinkAnalyse spatiale de la dynamique de l’occupation du sol aux échelles de la parcelle et de l’îlot parcellaire : Application en paysage agricole bocager / C. Vannier in Revue internationale de géomatique, vol 21 n° 3 (septembre - novembre 2011)PermalinkAutomated damage indication for rapid geospatial reporting / D. Tiede in Photogrammetric Engineering & Remote Sensing, PERS, vol 77 n° 9 (September 2011)PermalinkBuilding footprint database improvement for 3D reconstruction: A split and merge approach and its evaluation / Bruno Vallet in ISPRS Journal of photogrammetry and remote sensing, vol 66 n° 5 (September - October 2011)PermalinkÉclairer le choix des outils de simulation des changements des modes d’occupation et d’usages des sols : Une approche comparative / J. Mas in Revue internationale de géomatique, vol 21 n° 3 (septembre - novembre 2011)PermalinkElaboration d'une orthophoto historique sur l'ensemble de la Suisse / L. Berset in Géomatique suisse, vol 109 n° 9 (01/09/2011)PermalinkSoil landscapes of Canada: Building a national framework for environmental information / P. Schut in Geomatica, vol 65 n° 3 (September 2011)PermalinkDes structures paysagères à la dynamique des feux : Essai de typologie régionale des campagnes pyrophiles de l’ouest du Burkina Faso / S. Caillault in Revue internationale de géomatique, vol 21 n° 3 (septembre - novembre 2011)PermalinkUse of geo-spatial information and technologies for analyzing morphological changes in the Greater Visakhapatnal coastal region east coast of India / P. Latha in Geocarto international, vol 26 n° 5 (August 2011)PermalinkApplications de télédétection en Guyane : une histoire de diversité / Pierre Joubert in Rendez-vous techniques, n° 32 (printemps 2011)PermalinkPermalinkUser interactive multiple aerial view analysis for reconstructing a large number of 3D architectural models / S. Lee in ISPRS Journal of photogrammetry and remote sensing, vol 66 n° 4 (July - August 2011)PermalinkCAPIGI [Community on Agricultural Policy Implementation and GeoInformation] 2011 : geomatics and agriculture / E. Van Rees in Geoinformatics, vol 14 n° 4 (01/06/2011)PermalinkUne micro-histoire de la Terre et de l'utilisation des ressources : l'intégration des SIG-H (Systèmes d'information géographique historiques) et des données qui y sont liées en Bourgogne du sud / S. Madry in Le monde des cartes, n° 208 (juin 2011)PermalinkGS-soil portal: making soil data accessible / K. Feiden in GEO: Geoconnexion international, vol 10 n° 5 (may 2011)PermalinkAéroports : objets géographiques complexes / Françoise de Blomac in SIG la lettre, n° 126 (avril 2011)PermalinkConnectivity in the regular polytope representation / R. Thompson in Geoinformatica, vol 15 n° 2 (April 2011)PermalinkA genetic programming approach to estimate vegetation cover in the context of soil erosion assessment / C. Puente in Photogrammetric Engineering & Remote Sensing, PERS, vol 77 n° 4 (April 2011)PermalinkInterpreting motion events of pairs of moving objects / B. Gottfried in Geoinformatica, vol 15 n° 2 (April 2011)Permalinkvol 49 n° 4 - April 2011 - Special issue on remote sensing and modeling of surface properties (Bulletin de IEEE Transactions on geoscience and remote sensing) / Geoscience and remote sensing societyPermalinkModelling and analysing 3D buildings with a primal/dual data structure / P. Boguslawski in ISPRS Journal of photogrammetry and remote sensing, vol 66 n° 2 (March - April 2011)PermalinkModelling and analysing 3D buildings with a primal/dual data structure / P. Boguslawski in ISPRS Journal of photogrammetry and remote sensing, vol 66 n° 2 (March - April 2011)PermalinkEvaluation of analytical measures of map legibility / Hanna Stigmar in Cartographic journal (the), vol 48 n° 1 (February 2011)PermalinkImpervious surface area extraction from IKONOS imagery using an object-based fuzzy method / Xuefei Hu in Geocarto international, vol 26 n° 1 (February 2011)PermalinkAn evaluation of the impact of cartographic generalisation on length measurement computed from linear vector databases / Jean-François Girres (2011)PermalinkChange detection in a topographic building database using submetric satellite images / Arnaud Le Bris (2011)PermalinkConsultant SIG au sein de l'Organisation Internationale pour les Migrations, Port-au-Prince, Haiti / Manuel Robert (2011)PermalinkDelineation of impervious surface from multispectral imagery and lidar incorporating knowledge based expert system rules / K. Germaine in Photogrammetric Engineering & Remote Sensing, PERS, vol 77 n° 1 (January 2011)PermalinkDixièmes Rencontres de Théo Quant, 2011 [géographie théorique et quantitative] / Jean-Philippe Antoni (2011)PermalinkElaboration d'une carte dynamique des dégâts causés par les lahars au Merapi (Java centre, Indonésie) dans le cadre du programme MIA VITA / A.K. Robin (2011)PermalinkIntégration de la géophysique et de la télédétection pour la cartographie des sols à haute résolution spatiale : exemple de la reconnaissance de paléochenaux historiques dans les marais charentais / A. Camus in Revue Française de Photogrammétrie et de Télédétection, n° 193 (Janvier 2011)PermalinkLand cover classification of cloud-contaminated multitemporal high-resolution images / A. Salberg in IEEE Transactions on geoscience and remote sensing, vol 49 n° 1 Tome 2 (January 2011)PermalinkLiDAR surveys in the upper Rhine Valley: New insights for archeological and landscape applications / F. Basoge in Revue Française de Photogrammétrie et de Télédétection, n° 193 (Janvier 2011)PermalinkLes mutations urbaines dans le Haut-Rhin entre 2002 et 2007 / M. Nicolau (2011)PermalinkPermalinkOn-demand base maps on the web generalized according to user profiles / Theodor Foerster in International journal of geographical information science IJGIS, vol 25 n° 1-2 (january - february 2011)PermalinkL'outil SIG pour la gestion de crise et la reconstruction, métropole de Port-au-Prince, Haïti, post-séisme du 12 janvier 2010 / M. Leguillier (2011)PermalinkParameterizing support vector machines for land cover classification / X. Yang in Photogrammetric Engineering & Remote Sensing, PERS, vol 77 n° 1 (January 2011)PermalinkPermalinkToward the generalisation of cartographic mashups: Taking into account the dependency between the thematic data and the reference data throughout the process of automatic generalisation / Kusay Jaara (2011)PermalinkLa carte forestière sans papier / Thierry Touzet in Le monde des cartes, n° 206 (décembre 2010)Permalink