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CityGML implementation specifications for a countrywide 3D dataset: The case of the Netherlands / Jantien E. Stoter in Photogrammetric Engineering & Remote Sensing, PERS, vol 80 n° 11 (November 2014)  

Public [article]  inPhotogrammetric Engineering & Remote Sensing, PERS > vol 80 n° 11 (November 2014) . - pp 1069 - 1077 Titre : CityGML implementation specifications for a countrywide 3D dataset: The case of the Netherlands Type de document : Article/Communication Auteurs : Jantien E. Stoter, Auteur ; M. George Vosselman, Auteur ; Christian Dahmen, Auteur ; et al., Auteur Année de publication : 2014 Article en page(s) : pp 1069 - 1077 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique [Termes IGN] CityGML [Termes IGN] données localisées 3D [Termes IGN] implémentation (informatique) [Termes IGN] infrastructure nationale des données localisées [Termes IGN] Pays-Bas [Termes IGN] spécification Index. décimale : 37.00 Géomatique - information géographique - infrastructure de données Résumé : (Auteur)This paper discusses and presents the specifications of a countrywide 3D data set for The Netherlands and the best practices to generate 3D data accordingly. The specifications extend the OGC 3D standard CityGML to align it to national requirements. Although CityGML offers a solid base for 3D information modeling, we have met the problems of CityGML being a generic standard resulting in too much flexibility and in some cases ambiguity when implementing it at a national level. Based on experiences and use cases, we refined and extended the CityGML specifications into implementation specifications for our Dutch context. We present a workflow to generate 3D information compliant with specifications, starting from existing 2D/3D raw data. Also, a 3D validation tool has been developed to be able to evaluate 3D information against the defined specifications. Currently these specifications have been offered to OGC as best practices. Numéro de notice : A2014-618 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.14358/PERS.80.11.1069 En ligne : https://doi.org/10.14358/PERS.80.11.1069 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=74924 [article]

Fully automated generalization of a 1:50k map from 1:10k data / Jantien E. Stoter in Cartography and Geographic Information Science, vol 41 n° 1 (January 2014)  

Public [article]  inCartography and Geographic Information Science > vol 41 n° 1 (January 2014) . - pp 1 - 13 Titre : Fully automated generalization of a 1:50k map from 1:10k data Type de document : Article/Communication Auteurs : Jantien E. Stoter, Auteur ; Marc Post, Auteur ; Vincent Van Altena, Auteur ; Ron Nijhuis, Auteur ; Ben Bruns, Auteur Année de publication : 2014 Article en page(s) : pp 1 - 13 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] 1:10.000 [Termes IGN] 1:50.000 [Termes IGN] carte topographique [Termes IGN] chaîne de production [Termes IGN] données multiéchelles [Termes IGN] données topographiques [Termes IGN] généralisation automatique de données [Termes IGN] généralisation cartographique automatisée [Termes IGN] Pays-Bas [Vedettes matières IGN] Généralisation Résumé : (Auteur) This article presents research that implements a fully automated workflow to generalize a 1:50k map from 1:10k data. This is the first time that a complete topographic map has been generalized without any human interaction. More noteworthy is that the resulting map is good enough to replace the existing map. Specifications for the automated process were established as part of this research. Replication of the existing map was not the aim, because feasibility of automated generalization is better when compliance with traditional generalizations rules is loosened and alternate approaches are acceptable. Indeed, users valued the currency and relevancy of geographical information more than complying with all existing cartographic guidelines. The development of the workflow thus started with the creation of a test map with automated generalization operations. The reason for the test map was to show what is technologically possible and to refine the results based on iterative users’ evaluation. The generalization operations (200 in total) containing the relevant algorithms and parameter values were developed and implemented in one model. Particular effort was made to enrich the source data in order to improve the results. The model is context aware which means it is able to apply different algorithms or adjust parameter values in accordance with a specific area. The result of the research is a fully automated generalization workflow that produces a countrywide map at scale 1:50k from 1:10k data in 50 hours. A fully automated workflow may be the only way to produce flexible and on-demand products; consequently, the results were implemented as a new production line in 2013. Issues for further research have been identified. Numéro de notice : A2014-183 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/INFORMATIQUE Nature : Article DOI : 10.1080/15230406.2013.824637 En ligne : https://doi.org/10.1080/15230406.2013.824637 Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=33088 [article]

Exemplaires(1)

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032-2014011	RAB	Revue	Centre de documentation	En réserve L003	Disponible

Mapping a priori defined plant associations using remotely sensed vegetation characteristics / Hans D. Rölofsen in Remote sensing of environment, vol 140 (January 2014)  

Public [article]  inRemote sensing of environment > vol 140 (January 2014) . - pp 639 - 651 Titre : Mapping a priori defined plant associations using remotely sensed vegetation characteristics Type de document : Article/Communication Auteurs : Hans D. Rölofsen, Auteur ; Lammert Kooistra, Auteur ; Peter M. van Bodegom, Auteur ; Jochem Verrelst, Auteur ; Johan Krol, Auteur ; Jan-Philip M. Witte, Auteur Année de publication : 2014 Article en page(s) : pp 639 - 651 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] caractérisation [Termes IGN] classification [Termes IGN] humidité du sol [Termes IGN] image aérienne [Termes IGN] image multibande [Termes IGN] nutriment végétal [Termes IGN] Pays-Bas [Termes IGN] phytosociologie [Termes IGN] placette d'échantillonnage [Termes IGN] répartition géographique [Termes IGN] salinité [Vedettes matières IGN] Ecologie forestière Résumé : (auteur) Incorporation of a priori defined plant associations into remote sensing products is a major challenge that has only recently been confronted by the remote sensing community. We present an approach to map the spatial distribution of such associations by using plant indicator values (IVs) for salinity, moisture and nutrients as an intermediate between spectral reflectance and association occurrences. For a 12 km2 study site in the Netherlands, the relations between observed IVs at local vegetation plots and visible and near-infrared (VNIR) and short-wave infrared (SWIR) airborne reflectance data were modelled using Gaussian Process Regression (GPR) (R2 0.73, 0.64 and 0.76 for salinity, moisture and nutrients, respectively). These relations were applied to map IVs for the complete study site. Association occurrence probabilities were modelled as function of IVs using a large database of vegetation plots with known association and IVs. Using the mapped IVs, we calculated occurrence probabilities of 19 associations for each pixel, resulting in both a crisp association map with the most likely occurring association per pixel, as well as occurrence probability maps per association. Association occurrence predictions were assessed by a local vegetation expert, which revealed that the occurrences of associations situated at frequently predicted indicator value combinations were over predicted. This seems primarily due to biases in the GPR predicted IVs, resulting in associations with envelopes located in extreme ends of IVs being scarcely predicted. Although the results of this particular study were not fully satisfactory, the method potentially offers several advantages compared to current vegetation classification techniques, like site-independent calibration of association probabilities, site-independent selection of associations and the provision of IV maps and occurrence probabilities per association. If the prediction of IVs can be improved, this method may thus provide a viable roadmap to bring a priori defined plant associations into the domain of remote sensing. Numéro de notice : A2014-796 Affiliation des auteurs : non IGN Thématique : FORET/IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.rse.2013.09.030 En ligne : https://doi.org/10.1016/j.rse.2013.09.030 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=81015 [article]

UML-based approach to developing a CityGML application domain extension / Linda Van Den Brink in Transactions in GIS, vol 17 n° 6 (December 2013)  

Public [article]  inTransactions in GIS > vol 17 n° 6 (December 2013) . - pp 920 - 942 Titre : UML-based approach to developing a CityGML application domain extension Type de document : Article/Communication Auteurs : Linda Van Den Brink, Auteur ; Jantien E. Stoter, Auteur ; Sisi Zlatanova, Auteur Année de publication : 2013 Article en page(s) : pp 920 - 942 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique [Termes IGN] architecture orientée modèle [Termes IGN] CityGML [Termes IGN] diagramme [Termes IGN] données localisées 3D [Termes IGN] GML [Termes IGN] langage de modélisation [Termes IGN] module d'extension [Termes IGN] Pays-Bas [Termes IGN] SIG 3D [Termes IGN] UML Résumé : (Auteur) Recently a national 3D standard was established in the Netherlands as a CityGML Application Domain Extension (called IMGeo). In line with the Dutch practice of modeling geo-information, the ADE is developed using a model driven approach. The classes are designed in UML and automatically mapped to GML schema. The current OGC CityGML specification does not provide rules or guidance on correctly modeling an ADE in UML. This article fills this gap by studying how CityGML can be extended for specific applications starting from the UML diagrams. Six alternatives for modeling ADEs in UML are introduced and compared. The optimal alternative is selected and applied to obtain the national 3D standard. The approach was extensively discussed with international experts, who were members of both SIG3D and other working groups. As a consequence the approach was adopted by the SIG3D, the Special Interest Group 3D which, among other things, work on the 3D standard CityGML in cooperation with OGC. Therefore the approach contains many issues that can be generalized and reused by future domain extensions of CityGML. To further support this, the article formulates a model-driven framework to model CityGML ADEs. Open issues are described in the conclusions. Numéro de notice : A2013-675 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1111/tgis.12026 Date de publication en ligne : 22/05/2013 En ligne : https://doi.org/10.1111/tgis.12026 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32811 [article]

A sky status indicator to detect rain-affected atmospheric thermal emissions observed at ground / Ada Vittoria Bosisio in IEEE Transactions on geoscience and remote sensing, vol 51 n° 9 (September 2013)  

Public [article]  inIEEE Transactions on geoscience and remote sensing > vol 51 n° 9 (September 2013) . - pp 4643 - 4649 Titre : A sky status indicator to detect rain-affected atmospheric thermal emissions observed at ground Type de document : Article/Communication Auteurs : Ada Vittoria Bosisio, Auteur ; Emanno Fionda, Auteur ; Piero Ciotti, Auteur ; Antonio Martellucci, Auteur Année de publication : 2013 Conférence : MicroRad 2012, 12th specialist meeting on microwave radiometry and remote sensing applications 05/03/2012 09/03/2012 Rome Italie Proceedings IEEE Article en page(s) : pp 4643 - 4649 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image radar et applications [Termes IGN] atmosphère terrestre [Termes IGN] émission thermique [Termes IGN] image radar [Termes IGN] indicateur [Termes IGN] Pays-Bas [Termes IGN] précipitation [Termes IGN] propagation du signal [Termes IGN] radiomètre à hyperfréquence [Termes IGN] température de luminance Résumé : (Auteur) Radiometric measurements could provide continuous information about atmospheric conditions. In this paper, a sky status indicator (SSI) is proposed as a real-time recognition criterion for the detection, in particular, of the presence of rain events along the propagation path. The computation of the SSI is based on ground-based brightness temperature measurements, at 23.8 and 31.4 GHz, collected in Cabauw, Netherlands, in 2009 by the ESA Atmospheric Propagation and Profiling System (ATPROP) multichannel radiometer. A validation analysis is carried out between simulated data, which are computed by applying the radiative transfer equation to a database of radiosonde profiles collected in De Bilt, Netherlands, by the Royal Netherlands Meteorological Institute, and two data sets of radiometric observations at two elevation angles (è equal to 90° and è equal to 69.6°). The analysis based on SSI probability distribution functions has allowed for calculation of the boundary threshold values that are able to discriminate the status of the sky. Furthermore, performances of the SSI were validated against rainfall measurements collected at the ground by a rain gauge located near the ESA ATPROP multichannel radiometer. Numéro de notice : A2013-537 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1109/TGRS.2013.2272589 En ligne : https://doi.org/10.1109/TGRS.2013.2272589 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32674 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
065-2013091	RAB	Revue	Centre de documentation	En réserve L003	Disponible

Catching data in the cobweb: an EU-wide project has just been set up to make it easier for citizens to collect environmental data for use in research, decision-making and creating public policy / Jamie Williams in GEO: Geoconnexion international, vol 12 n° 4 (april 2013)

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Many heads make light work: a prize-winning project that uses games to crowd-source satellite image analysis / Penelope Richarson in GEO: Geoconnexion international, vol 12 n° 4 (april 2013)

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Generation and dissemination of a national virtual 3D city and landscape model for the Netherlands / Sander J. Elberink in Photogrammetric Engineering & Remote Sensing, PERS, vol 79 n° 2 (February 2013)  

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Vegetation relevés and soil measurements in the Netherlands: the Ecological Conditions Database (EC) / G.W. Wieger Wamelink in Biodiversity & Ecology, vol 4 (September 2012)  

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A comparison between WCS and OPeNDAP for making model results and data products available through the Internet / F. Baart in Transactions in GIS, vol 16 n° 2 (April 2012)  

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Ferraris, the legend / K. De Coene in Cartographic journal (the), vol 49 n° 1 (February 2012)  

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Aeolian beach sand transport monitored by terrestrial laser scanning / Roderik Lindenbergh in Photogrammetric record, vol 26 n° 136 (December 2011 - February 2012)  

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Geoprofessionals should look outside their own box / D. Haarsma in GIM international, vol 25 n° 12 (December 2011)  

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GNSS rapidly gains ground / R. Van Santen in GIM international, vol 25 n° 10 (October 2011)

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Solutions for 4D cadastre - with a case study on utility networks / F. Döner in International journal of geographical information science IJGIS, vol 25 n° 6-7 (june - july 2011)  

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A semantic-rich multi-scale information model for topography / Jantien E. Stoter in International journal of geographical information science IJGIS, vol 25 n° 4-5 (May 2011)  

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Estimation of slack tide using GPS measurements on a buoy / M. Valk (2011)    

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An integrated approach for visual analysis of a multisource moving objects knowledge base / N. Wllems in International journal of geographical information science IJGIS, vol 24 n° 10 (october 2010)  

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Historical Rotterdam: 3D city models / F. Steidler in Geoinformatics, vol 13 n° 6 (01/09/2010)

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An agent-based micro-simulation framework for modelling of dynamic activity-travel rescheduling decisions / Theo Arentze in International journal of geographical information science IJGIS, vol 24 n°7-8 (july 2010)  

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Cadastres and climate change: "multi-purpose" land administration systems / Paul Van Der Molen in Geoinformatics, vol 13 n° 2 (01/03/2010)

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Optimization of mobile radioactivity monitoring networks / Gerard B.M. Heuvelink in International journal of geographical information science IJGIS, vol 24 n°3-4 (march 2010)  

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Knowledge based building facade reconstruction from laser point clouds and images / Shi Pu (2010)  

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Management of massive point cloud data / Peter J. M. Van Oosterom (2010)    

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Core spatial data / Peter J. M. Van Oosterom (2009)    

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