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Energy planning tools and CityGML-based 3D virtual city models: experiences from Trento (Italy) / Giorgio Agugiaro in Applied geomatics, vol 8 n° 1 (March 2016)
[article]
Titre : Energy planning tools and CityGML-based 3D virtual city models: experiences from Trento (Italy) Type de document : Article/Communication Auteurs : Giorgio Agugiaro, Auteur Année de publication : 2016 Article en page(s) : pp 41 - 56 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] bâtiment
[Termes IGN] caractérisation
[Termes IGN] CityGML
[Termes IGN] consommation
[Termes IGN] intégration de données
[Termes IGN] modèle 3D de l'espace urbain
[Termes IGN] outil d'aide à la décision
[Termes IGN] performance énergétique
[Termes IGN] Trente
[Vedettes matières IGN] GéovisualisationRésumé : (Auteur) This article presents the first results concerning the development and implementation of a tool for the estimation of the energy performance for residential buildings at city scale. Space heating and domestic hot water production are taken into account. Project “EnerCity” focuses on two main topics: (a) the creation of a CityGML-compliant 3D city model from sub-optimal datasets and (b) its adoption as information hub to develop energy-related assessment tools. A part of the city of Trento, in northern Italy, was chosen as the case study area for testing purposes; however, the methodology was developed to be extended to the whole city. Only publicly available data were used. The energy demand calculation method is based on the Italian Technical Specifications UNI/TS 11300:2008. For each building, the primary energy demand for space heating and domestic hot water production, as well as the resulting energy performance index, are estimated. In order to characterise the buildings, heterogeneous datasets (cadastral data, statistical data, etc.) were harmonised and integrated. All residential buildings were successively classified into distinct building types according to the criteria defined for Italy in the European project “Tabula”. The developed tool allows for data visualisation, editing as well as interactive refurbishment of the buildings. The article describes all relevant steps of the project and discusses possible enhancements and the future improvements. Numéro de notice : A2016--057 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1007/s12518-015-0163-2 En ligne : http://dx.doi.org/10.1007/s12518-015-0163-2 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=84205
in Applied geomatics > vol 8 n° 1 (March 2016) . - pp 41 - 56[article]Modèle de radiation et modèle gravitaire : du formalisme à l’usage / Hadrien Commenges in Revue internationale de géomatique, vol 26 n° 1 (janvier - mars 2016)
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Titre : Modèle de radiation et modèle gravitaire : du formalisme à l’usage Type de document : Article/Communication Auteurs : Hadrien Commenges, Auteur Année de publication : 2016 Article en page(s) : pp 79 - 95 Note générale : Bibliographie Langues : Français (fre) Descripteur : [Vedettes matières IGN] Analyse spatiale
[Termes IGN] interaction spatiale
[Termes IGN] migration pendulaire
[Termes IGN] milieu urbain
[Termes IGN] modèle numérique
[Termes IGN] qualité des donnéesRésumé : (Auteur) Simini, González, Maritan et Barabási ont récemment proposé un « modèle universel » appliqué à la mobilité et aux migrations, le modèle de radiation (Simini et al., 2012). Cette proposition s’appuie sur une critique sévère du modèle gravitaire. En confrontant les deux modèles, les auteurs posent plusieurs questions cruciales concernant les formalismes et les usages des modèles de prévision des flux : questions théoriques et méthodologiques sur la qualité d’un modèle de prévision, mais aussi questions sur le succès d’une approche de modélisation, c’est-à-dire sur sa diffusion et son maintien. L’objectif de cet article est d’examiner le lien entre ces deux aspects : la qualité du modèle, qui tient en première analyse à son formalisme, et le succès du modèle, qui tient à son usage. Numéro de notice : A2016-325 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.3166/RIG.26.79-95 Date de publication en ligne : 11/04/2016 En ligne : https://doi.org/10.3166/RIG.26.79-95 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=80947
in Revue internationale de géomatique > vol 26 n° 1 (janvier - mars 2016) . - pp 79 - 95[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 047-2016011 RAB Revue Centre de documentation En réserve L003 Disponible Modellbasierte Transformation von 3D-Gebäudemodellen nach INSPIRE / Klement Aringer in ZFV, Zeitschrift für Geodäsie, Geoinformation und Landmanagement, Vol 141 n° 3 (Mai - Juni 2016)
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Titre : Modellbasierte Transformation von 3D-Gebäudemodellen nach INSPIRE Type de document : Article/Communication Auteurs : Klement Aringer, Auteur ; Andreas Donaubauer, Auteur ; Thomas H. Kolbe, Auteur ; Robert Roschlaub, Auteur Année de publication : 2016 Article en page(s) : pp 184 - 191 Note générale : bibliographie Langues : Allemand (ger) Descripteur : [Vedettes matières IGN] Infrastructure de données
[Termes IGN] Bavière (Allemagne)
[Termes IGN] CityGML
[Termes IGN] données localisées 3D
[Termes IGN] INSPIRE
[Termes IGN] modèle 3D de l'espace urbain
[Termes IGN] niveau de détail
[Termes IGN] spécification de produitRésumé : (auteur) The federal governments of Germany endeavour to create a harmonized 3D building data set based on a common application schema (the AdV-CityGML-Profile). In a joint research project, the Bavarian Agency for Digitisation, High-Speed Internet and Surveying and the TUM, Chair of Geoinformatics, transformed an AdV-CityGML-Profile based test data set of Bavarian LoD2 building models into an INSPIRE-compliant schema. For the purpose of a transformation of such kind, the AdV provides the data specification, a test plan for 3D building models and a mapping table. The research project examined whether the transformation rules defined in the mapping table were unambiguous and sufficient for implementing a transformation of LoD2 data based on the AdV-CityGML-Profile into the INSPIRE schema. The proof of concept was carried out by transforming production data of the Bavarian 3D building model in LoD2 into the INSPIRE BU schema. In order to assure the quality of the data to be transformed the test specifications according to the test plan for 3D building models of the AdV were carried out. The AdV mapping table was checked for completeness and correctness and amendments were made accordingly. Numéro de notice : A2016-621 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/IMAGERIE Nature : Article DOI : sans En ligne : http://dx.doi.org/10.12902/zfv-0113-2016 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=81816
in ZFV, Zeitschrift für Geodäsie, Geoinformation und Landmanagement > Vol 141 n° 3 (Mai - Juni 2016) . - pp 184 - 191[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 199-2016031 RSREV Revue Centre de documentation Revues en salle Disponible Quantitative quality evaluation of pansharpened imagery: consistency versus synthesis / Frosti Palsson in IEEE Transactions on geoscience and remote sensing, vol 54 n° 3 (March 2016)
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Titre : Quantitative quality evaluation of pansharpened imagery: consistency versus synthesis Type de document : Article/Communication Auteurs : Frosti Palsson, Auteur ; Johannes R. Sveinsson, Auteur ; Magnus Orn Ulfarsson, Auteur ; Jon Atli Benediktsson, Auteur Année de publication : 2016 Article en page(s) : pp 1247 - 1259 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image optique
[Termes IGN] cohérence des données
[Termes IGN] évaluation
[Termes IGN] fusion d'images
[Termes IGN] image de synthèse
[Termes IGN] image Quickbird
[Termes IGN] image Worldview
[Termes IGN] pansharpening (fusion d'images)
[Termes IGN] problème inverse
[Termes IGN] qualité des donnéesRésumé : (Auteur) Pansharpening is the process of fusing a high-resolution panchromatic image and a low-spatial-resolution multispectral image to yield a high-spatial-resolution multispectral image. This is a typical ill-posed inverse problem, and in the past two decades, many methods have been proposed to solve it. Still, there is no general consensus on the best way to quantitatively evaluate the spectral and spatial quality of the fused image. In this paper, we compare the two most widely used and accepted methods for quality evaluation. The first method is the verification of the synthesis property which states that the fused image should be as identical as possible to the multispectral image that the sensor would observe at a higher resolution. This is impossible to verify unless the observed images are spatially degraded so that the original observed multispectral image can be used as reference. The second method is to use metrics that do not use a reference, such as the quality no reference (QNR) metrics. However, there is another property, i.e., the consistency property, which states that the fused image reduced to the resolution of the original multispectral image should be as identical to the original image as possible. This has generally been considered a necessary condition that does not have to imply correct fusion. Using real WorldView-2 and QuickBird data and a total of 18 component substitution and multiresolution analysis methods, we demonstrate that the consistency property can indeed be used to give reliable assessment of the relative performance of pansharpening methods and is superior to using the QNR metrics. Numéro de notice : A2016-126 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1109/TGRS.2015.2476513 En ligne : http://dx.doi.org/10.1109/TGRS.2015.2476513 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=80007
in IEEE Transactions on geoscience and remote sensing > vol 54 n° 3 (March 2016) . - pp 1247 - 1259[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 065-2016031 SL Revue Centre de documentation Revues en salle Disponible Spatial accuracy of UAV- derived orthoimagery and topography: Comparing photogrammetric models processed with direct geo-referencing and ground control points / Chris H. Hugenholtz in Geomatica, vol 70 n° 1 (March 2016)
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Titre : Spatial accuracy of UAV- derived orthoimagery and topography: Comparing photogrammetric models processed with direct geo-referencing and ground control points Type de document : Article/Communication Auteurs : Chris H. Hugenholtz, Auteur ; Owen Brown, Auteur ; Jordan Walker, Auteur ; et al., Auteur Année de publication : 2016 Article en page(s) : pp 21 - 30 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications photogrammétriques
[Termes IGN] acquisition de données
[Termes IGN] analyse comparative
[Termes IGN] capteur aérien
[Termes IGN] drone
[Termes IGN] géoréférencement direct
[Termes IGN] point d'appui
[Termes IGN] positionnement cinématique en temps réel
[Termes IGN] positionnement inertiel
[Termes IGN] positionnement par GNSS
[Termes IGN] positionnement par GPS
[Termes IGN] qualité des données
[Termes IGN] réalité de terrain
[Termes IGN] topographieRésumé : (auteur) Mapping with unmanned aerial vehicles (UAVs) typically involves the deployment of ground control points (GCPs) to georeference the images and topographic model. An alternative approach is direct georeferencing, whereby the onboard Global Navigation Satellite System (GNSS) and inertial measurement unit are used without GCPs to locate and orient the data. This study compares the spatial accuracy of these approaches using two nearly identical UAVs. The onboard GNSS is the one difference between them, as one vehicle uses a survey-grade GNSS/RTK receiver (RTK UAV), while the other uses a lower-grade GPS receiver (non-RTK UAV). Field testing was performed at a gravel pit, with all ground measurements and aerial surveying completed on the same day. Three sets of orthoimages and DSMs were produced for comparing spatial accuracies: two sets were created by direct georeferencing images from the RTK UAV and non-RTK UAV and one set was created by using GCPs during the external orientation of the non-RTK UAV images. Spatial accuracy was determined from the horizontal (X,Y) and vertical (Z) residuals and root-mean-square-errors (RMSE) relative to 17 horizontal and 180 vertical check points measured with a GNSS/RTK base station and rover. For the two direct georeferencing datasets, the horizontal and vertical accuracy improved substantially with the survey-grade GNSS/RTK receiver onboard the RTK UAV, effectively reducing the RMSE values in X, Y and Z by 1 to 2 orders of magnitude compared to the lower grade GPS receiver onboard the non-RTK UAV. Importantly, the horizontal accuracy of the RTK UAV data processed via direct georeferencing was equivalent to the horizontal accuracy of the non-RTK UAV data processed with GCPs, but the vertical error of the DSM from the RTK UAV data was 2 to 3 times greater than the DSM from the non-RTK data with GCPs. Overall, results suggest that direct georeferencing with the RTK UAV can achieve horizontal accuracy comparable to that obtained with a network of GCPs, but for topographic measurements requiring the highest achievable accuracy, researchers and practitioners should use GCPs. Numéro de notice : A2016-433 Affiliation des auteurs : non IGN Thématique : IMAGERIE/POSITIONNEMENT Nature : Article DOI : 10.5623/cig2016-102 En ligne : https://doi.org/10.5623/cig2016-102 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=81330
in Geomatica > vol 70 n° 1 (March 2016) . - pp 21 - 30[article]A correctly weighted least squares adjustment - Part 2 Estimating uncertainties / Charles D. Ghilani in xyHt, vol 2016 n° 2 (February 2016)PermalinkLa géostatistique : une vision novatrice au service des géosciences / Bernard Bourgine in Géosciences, n°20 (février 2016)PermalinkReconstructing a church in 3D / Matthias Naumann in GIM international, vol 30 n° 2 (February 2016)PermalinkSpatial data infrastructure in Chile is mature and expanding / Alvaro Monett Hernandéz in GIM international, vol 30 n° 2 (February 2016)PermalinkAdaptive GPS/INS integration for relative navigation / Je Young Lee in GPS solutions, vol 20 n° 1 (January 2016)PermalinkAn interactive system for intrinsic validation of citizen science data for species distribution mapping and modelling applications / Hossein Vahidi (2016)PermalinkPermalinkPermalinkPermalinkPermalink