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Auteur L. Plumer |
Documents disponibles écrits par cet auteur (10)
Ajouter le résultat dans votre panier Affiner la recherche Interroger des sources externesIdentification of optimal colours for maps from the web / Jörg Steinrücken in Cartographic journal (the), vol 50 n° 1 (February 2013)
Titre : Identification of optimal colours for maps from the web Type de document : Article/Communication Auteurs : Jörg Steinrücken, Auteur ; L. Plumer, Auteur Année de publication : 2013 Article en page(s) : pp 19 - 32 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] carte sur mesure
[Termes IGN] cohérence des couleurs
[Termes IGN] communication cartographique
[Termes IGN] visualisation cartographique
[Termes IGN] Web Map Service
[Termes IGN] web mapping
[Vedettes matières IGN] CartologieRésumé : (Auteur) Maps which are created on demand by combining geospatial data from different Web Map Services integrate conflicting portrayals and do not satisfy the requirements of effective cartographic communication. A significant improvement is achieved by selecting clearly distinguishable colours which are determined by solving an optimisation problem. Cartographic guidelines and user characteristics (e.g. colour vision impairment) can be incorporated into the optimisation model as constraints which guide the selection of colours. Numéro de notice : A2013-186 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1179/1743277412Y.0000000017 En ligne : https://doi.org/10.1179/1743277412Y.0000000017 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32324
in Cartographic journal (the) > vol 50 n° 1 (February 2013) . - pp 19 - 32[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 030-2013011 RAB Revue Centre de documentation En réserve L003 Disponible
Titre : CityGML - Interoperable semantic 3D city models Type de document : Article/Communication Auteurs : G. Groger, Auteur ; L. Plumer, Auteur Année de publication : 2012 Article en page(s) : pp 12 - 33 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique web
[Termes IGN] CityGML
[Termes IGN] données localisées 3D
[Termes IGN] INSPIRE
[Termes IGN] interopérabilité
[Termes IGN] modèle 3D de l'espace urbain
[Termes IGN] standard OGCRésumé : (Auteur) CityGML is the international standard of the Open Geospatial Consortium (OGC) for the representation and exchange of 3D city models. It defines the three-dimensional geometry, topology, semantics and appearance of the most relevant topographic objects in urban or regional contexts. These definitions are provided in different, well-defined Levels-of-Detail (multiresolution model). The focus of CityGML is on the semantical aspects of 3D city models, its structures, taxonomies and aggregations, allowing users to employ virtual 3D city models for advanced analysis and visualization tasks in a variety of application domains such as urban planning, indoor/outdoor pedestrian navigation, environmental simulations, cultural heritage, or facility management. This is in contrast to purely geometrical/graphical models such as KML, VRML, or X3D, which do not provide sufficient semantics. CityGML is based on the Geography Markup Language (GML), which provides a standardized geometry model. Due to this model and its well-defined semantics and structures, CityGML facilitates interoperable data exchange in the context of geo web services and spatial data infrastructures. Since its standardization in 2008, CityGML has become used on a worldwide scale: tools from notable companies in the geospatial field provide CityGML interfaces. Many applications and projects use this standard. CityGML is also having a strong impact on science: numerous approaches use CityGML, particularly its semantics, for disaster management, emergency responses, or energy-related applications as well as for visualizations, or they contribute to CityGML, improving its consistency and validity, or use CityGML, particularly its different Levels-of-Detail, as a source or target for generalizations. This paper gives an overview of CityGML, its underlying concepts, its Levels-of-Detail, how to extend it, its applications, its likely future development, and the role it plays in scientific research. Furthermore, its relationship to other standards from the fields of computer graphics and computer-aided architectural design and to the prospective INSPIRE model are discussed, as well as the impact CityGML has and is having on the software industry, on applications of 3D city models, and on science generally. Numéro de notice : A2012-345 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.isprsjprs.2012.04.004 En ligne : https://doi.org/10.1016/j.isprsjprs.2012.04.004 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31791
in ISPRS Journal of photogrammetry and remote sensing > vol 71 (July 2012) . - pp 12 - 33[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 081-2012051 SL Revue Centre de documentation Revues en salle Disponible
Titre : Automatic classification of building types in 3D city models: Using SVMs for semantic enrichment of low resolution building data Type de document : Article/Communication Auteurs : A. Henn, Auteur ; C. Römer, Auteur ; G. Groger, Auteur ; L. Plumer, Auteur Année de publication : 2012 Article en page(s) : pp 281 - 306 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image
[Termes IGN] apprentissage automatique
[Termes IGN] attribut sémantique
[Termes IGN] bati
[Termes IGN] classification automatique
[Termes IGN] classification par séparateurs à vaste marge
[Termes IGN] image à basse résolution
[Termes IGN] modèle 3D de l'espace urbainRésumé : (Auteur) This article presents a classifier based on Support Vector Machines (SVMs), an advanced machine learning method for semantic enrichment of coarse 3D city models by deriving the building type. The information on the building type (detached building, terraced building, etc.) is essential for a variety of relevant applications of 3D city models like spatial marketing, real estate management and marketing, and for visualization. The derivation of the building type from coarse data (mainly 2D footprints, building heights and functions) seems impossible at first sight. However it succeeds by incorporating the spatial context of a building. Since the input data can be derived easily and at very low cost, this method is widely applicable. Nevertheless, as with all supervised learning algorithms, obtaining labelled training data is very time-consuming. Herewith, we provide a method which uses outlier detection and clustering methods to support users in efficiently and rapidly obtaining adequate training data. Numéro de notice : A2012-089 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.1007/s10707-011-0131-x Date de publication en ligne : 07/07/2011 En ligne : https://doi.org/10.1007/s10707-011-0131-x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31537
in Geoinformatica > vol 16 n° 2 (April 2012) . - pp 281 - 306[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 057-2012021 RAB Revue Centre de documentation En réserve L003 Disponible
Titre : Transaction rules for updating surfaces in 3D GIS Type de document : Article/Communication Auteurs : G. Groger, Auteur ; L. Plumer, Auteur Année de publication : 2012 Article en page(s) : pp 134 - 145 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique
[Termes IGN] cohérence des données
[Termes IGN] contrainte d'intégrité
[Termes IGN] données localisées 3D
[Termes IGN] modèle numérique de surface
[Termes IGN] programmation par contraintes
[Termes IGN] règle
[Termes IGN] SIG 3DRésumé : (Auteur) Three-dimensional surface models representing the terrain and the outer hull of objects such as buildings and bridges support important 3D GIS applications, for example telecommunication planning and noise emission simulation. Updates of surface models often introduce errors which violate basic assumptions of users and their applications. The notion of geometric-topological consistency covers many of these assumptions. It guarantees that objects do not penetrate mutually or that objects completely cover other objects. Assuring that updates do not violate geometric-topological consistency constitutes a major challenge for 3D GIS which has not been satisfactorily met so far. This article presents a solution which is based on efficient transaction rules for updating 3D surface models. We show that these rules are safe (consistency is preserved by any rule application) and complete (any consistent surface model can be generated by successive rule applications). For both properties rigorous mathematic proofs are given. Numéro de notice : A2012-197 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.isprsjprs.2012.03.004 En ligne : https://doi.org/10.1016/j.isprsjprs.2012.03.004 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31644
in ISPRS Journal of photogrammetry and remote sensing > vol 69 (April 2012) . - pp 134 - 145[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 081-2012031 SL Revue Centre de documentation Revues en salle Disponible
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]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 057-2012011 RAB Revue Centre de documentation En réserve L003 Disponible PermalinkPermalinkPermalinkPermalinkPermalink
