Descripteur
Documents disponibles dans cette catégorie (1387)
Ajouter le résultat dans votre panier
Visionner les documents numériques
Affiner la recherche Interroger des sources externes
Etendre la recherche sur niveau(x) vers le bas
Three-dimensional building façade segmentation and opening area detection from point clouds / S.M. Iman Zolanvari in ISPRS Journal of photogrammetry and remote sensing, vol 143 (September 2018)
[article]
Titre : Three-dimensional building façade segmentation and opening area detection from point clouds Type de document : Article/Communication Auteurs : S.M. Iman Zolanvari, Auteur ; Debra F. Laefer, Auteur ; Atteyeh S. Natanzi, Auteur Année de publication : 2018 Article en page(s) : pp 134 - 149 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Lasergrammétrie
[Termes IGN] données lidar
[Termes IGN] données localisées 3D
[Termes IGN] extraction de traits caractéristiques
[Termes IGN] reconstruction 3D du bâti
[Termes IGN] segmentation
[Termes IGN] semis de points
[Termes IGN] toitRésumé : (Auteur) Laser scanning generates a point cloud from which geometries can be extracted, but most methods struggle to do this automatically, especially for the entirety of an architecturally complex building (as opposed to that of a single façade). To address this issue, this paper introduces the Improved Slicing Method (ISM), an innovative and computationally-efficient method for three-dimensional building segmentation. The method is also able to detect opening boundaries even on roofs (e.g. chimneys), as well as a building’s overall outer boundaries using a local density analysis technique. The proposed procedure is validated by its application to two architecturally complex, historic brick buildings. Accuracies of at least 86% were achieved, with computational times as little as 0.53 s for detecting features from a data set of 5.0 million points. The accuracy more than rivalled the current state of the art, while being up to six times faster and with the further advantage of requiring no manual intervention or reliance on a priori information. Numéro de notice : A2018-358 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.isprsjprs.2018.04.004 Date de publication en ligne : 09/05/2018 En ligne : https://doi.org/10.1016/j.isprsjprs.2018.04.004 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=90592
in ISPRS Journal of photogrammetry and remote sensing > vol 143 (September 2018) . - pp 134 - 149[article]Réservation
Réserver ce documentExemplaires(3)
Code-barres Cote Support Localisation Section Disponibilité 081-2018091 RAB Livre Centre de documentation En réserve L003 Disponible 081-2018093 DEP-EXM Livre LASTIG Dépôt en unité Exclu du prêt 081-2018092 DEP-EAF Livre Nancy Dépôt en unité Exclu du prêt Evolutionary approach for detection of buried remains using hyperspectral images / Leon Dozal in Photogrammetric Engineering & Remote Sensing, PERS, vol 84 n° 7 (juillet 2018)
[article]
Titre : Evolutionary approach for detection of buried remains using hyperspectral images Type de document : Article/Communication Auteurs : Leon Dozal, Auteur ; José L. Silvan-Cardenas, Auteur ; Daniela Moctezuma, Auteur ; Oscar S. Siordia, Auteur ; Enrique Naredo, Auteur Année de publication : 2018 Article en page(s) : pp 435 - 450 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image optique
[Termes IGN] algorithme génétique
[Termes IGN] image hyperspectrale
[Termes IGN] Mexique
[Termes IGN] précision de la classification
[Termes IGN] teneur en eau de la végétation
[Termes IGN] tombeRésumé : (Auteur) Hyperspectral imaging has been successfully utilized to locate clandestine graves. This study applied a Genetic Programming technique called Brain Programming (BP) for automating the design of Hyperspectral Visual Attention Models (H-VAM.), which is proposed as a new method for the detection of buried remains. Four graves were simulated and monitored during six months by taking in situ spectral measurements of the ground. Two experiments were implemented using Kappa and weighted Kappa coefficients as classification accuracy measures for guiding the BP search of the best H-VAM. Experimental results demonstrate that the proposed BP method improves classification accuracy compared to a previous approach. A better detection performance was observed for the image acquired after three months from burial. Moreover, results suggest that the use of spectral bands that respond to vegetation and water content of the plants and provide evidence that the number of buried bodies plays a crucial role on a successful detection. Numéro de notice : A2018-359 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.14358/PERS.84.7.435 Date de publication en ligne : 01/07/2018 En ligne : https://doi.org/10.14358/PERS.84.7.435 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=90599
in Photogrammetric Engineering & Remote Sensing, PERS > vol 84 n° 7 (juillet 2018) . - pp 435 - 450[article]Réservation
Réserver ce documentExemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 105-2018071 RAB Revue Centre de documentation En réserve L003 Disponible Le FOSS4G-fr version 2018 / Anonyme in Géomatique expert, n° 122 (mai-juin 2018)
[article]
Titre : Le FOSS4G-fr version 2018 Type de document : Article/Communication Auteurs : Anonyme, Auteur Année de publication : 2018 Article en page(s) : pp 4 - 16 Langues : Français (fre) Descripteur : [Vedettes matières IGN] Géomatique
[Termes IGN] données ouvertes
[Termes IGN] logiciel de traitement de données GNSS
[Termes IGN] logiciel libre
[Termes IGN] logiciel SIG
[Termes IGN] WebSIGRésumé : (éditeur) Organisée tous les deux ans par l’équipe de l’OSGeo-fr, chapitre français de l’OSGeo, la conférence FOSS4G-fr permet aux nombreux utilisateurs de logiciels géomatique libres de se rencontrer, et aux éditeurs et sociétés de service de faire le point sur produits et prestations. Numéro de notice : A2018-263 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=90320
in Géomatique expert > n° 122 (mai-juin 2018) . - pp 4 - 16[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité IFN-001-P002060 PER Revue Nogent-sur-Vernisson Salle périodiques Exclu du prêt Construction control and documentation of facade elements using terrestrial laser scanning / Ján Erdélyi in Applied geomatics, vol 10 n° 2 (June 2018)
[article]
Titre : Construction control and documentation of facade elements using terrestrial laser scanning Type de document : Article/Communication Auteurs : Ján Erdélyi, Auteur ; Alojz Kopacik, Auteur ; Peter Kyrinovič, Auteur Année de publication : 2018 Article en page(s) : pp 113 - 121 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Lasergrammétrie
[Termes IGN] bloc d'ancrage
[Termes IGN] Bratislava
[Termes IGN] données lidar
[Termes IGN] données localisées 3D
[Termes IGN] façade
[Termes IGN] semis de points
[Termes IGN] tour (bâtiment)Résumé : (Auteur) The current trend of the construction of high-rise buildings is based on construction of a reinforced concrete frame and on subsequent mounting of a light curtain wall. Parts of facades of buildings are also additional elements like balcony railings. The correct functionality, safety and also the aesthetic look of the facades depend on accurate fitting of these elements to the concrete frame. The facade elements are mounted (fixed) using anchor blocks, which are built in the concrete frame. The paper presents the procedure of as-built documentation of anchor blocks of the building complex Panorama City in Bratislava (Slovakia). The complex consists of two high-rise buildings with height of 110 m and a connecting part with height of 15 m. The as-built documentation was created for the facades of the high-rise buildings, on which more than 2500 anchor blocks are situated. Each anchor block consists of four threaded rods of type M20. The position of the anchors can be described by 4 points, defined by intersection of the rod’s main axis and a plane representing the part of the concrete frame. For determination of the position of anchor blocks, the threaded rods and the planes were modelled from TLS point clouds. The measurement procedure, data processing and results are described. Part of the paper is devoted to accuracy analysis and the analysis of limitations of TLS usage, also. Numéro de notice : A2018-154 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1007/s12518-018-0208-4 Date de publication en ligne : 09/03/2018 En ligne : https://doi.org/10.1007/s12518-018-0208-4 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=89767
in Applied geomatics > vol 10 n° 2 (June 2018) . - pp 113 - 121[article]Creating a conceptual framework to improve the re‐usability of open geographic data in cities / Fernando Benitez‐Paez in Transactions in GIS, vol 22 n° 3 (June 2018)
[article]
Titre : Creating a conceptual framework to improve the re‐usability of open geographic data in cities Type de document : Article/Communication Auteurs : Fernando Benitez‐Paez, Auteur ; Alexis Comber, Auteur ; Sergio Trilles, Auteur ; Joaquin Huerta, Auteur Année de publication : 2018 Article en page(s) : pp 806 - 822 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Infrastructure de données
[Termes IGN] cadre conceptuel
[Termes IGN] collectivité territoriale
[Termes IGN] Colombie
[Termes IGN] données localisées numériques
[Termes IGN] données ouvertes
[Termes IGN] Espagne
[Termes IGN] indicateur
[Termes IGN] réutilisation des données
[Termes IGN] Valence (Espagne)Résumé : (Auteur) Open data has a profound effect on the working environment within which information is created and shared at all levels. At the local government level, open data initiatives have resulted in higher transparency in policy, a greater engagement between decision‐makers and citizens, and have changed the culture about how data analysis and evidence are used to support local governance. This article, based on data collected through an on‐line survey, participatory workshops with data user communities in four cities (in Colombia and Spain), and interviews with Valencia good‐government office, identifies four elements for a conceptual framework to improve the re‐usability of open geographic data in cities. The essential elements defined in this research are the definition of data user communities and their needs, the creation of the community of reuse, user‐focused metadata, and reuse‐focused legal terms. The definition of these indicators provides a framework for authorities to re‐shape their current open data strategy to include data user requirements. At the end of this article, a roadmap for future research and implementation is presented, considering some reflections on the conceptual framework. Numéro de notice : A2018-579 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Actes nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1111/tgis.12449 Date de publication en ligne : 17/08/2018 En ligne : https://doi.org/10.1111/tgis.12449 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=92326
in Transactions in GIS > vol 22 n° 3 (June 2018) . - pp 806 - 822[article]Depth camera indoor mapping for 3D virtual radio play / Juho-Pekka Virtanen in Photogrammetric record, vol 33 n° 162 (June 2018)PermalinkFeasibility of the space-time cube in temporal cultural landscape visualization / Edyta P. Bogucka in ISPRS International journal of geo-information, vol 7 n° 6 (June 2018)PermalinkGeometric reasoning with uncertain polygonal faces / Jochen Meidow in Photogrammetric Engineering & Remote Sensing, PERS, vol 84 n° 6 (juin 2018)PermalinkThe efficiency of different outlier detection approaches in geodetic networks: case study for Pobednik statue / Mehmed Batilović in Geodetski vestnik, vol 62 n° 2 (June 2018)PermalinkAccurate facade feature extraction method for buildings from three-dimensional point cloud data considering structural information / Yongzhi Wang in ISPRS Journal of photogrammetry and remote sensing, vol 139 (May 2018)PermalinkFrom point cloud to BIM: an integrated workflow for documentation, research and modelling of architectural heritage / C. Rodríguez-Moreno in Survey review, vol 50 n° 360 (May 2018)PermalinkJournées de la recherche IGN 2018 / Anonyme in Géomatique expert, n° 121 (mars - avril 2018)PermalinkUse of LiDAR for calculating solar irradiance on roofs and façades of buildings at city scale: Methodology, validation, and analysis / Liang Cheng in ISPRS Journal of photogrammetry and remote sensing, vol 138 (April 2018)PermalinkGenerating vague neighbourhoods through data mining of passive web data / Paul Brindley in International journal of geographical information science IJGIS, vol 32 n° 3-4 (March - April 2018)PermalinkUne approche adaptative pour lier des données géoréférencées du Web / Abdelfettah Feliachi (2018)Permalink