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The state of the art of bridge information modelling from conceptual design through to operation / Aonghus O'Keeffe in International journal of 3-D information modeling, vol 3 n° 1 (January - March 2014)
[article]
Titre : The state of the art of bridge information modelling from conceptual design through to operation Type de document : Article/Communication Auteurs : Aonghus O'Keeffe, Auteur Année de publication : 2014 Article en page(s) : pp 29 - 39 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] analyse comparative
[Termes IGN] état de l'art
[Termes IGN] modèle numérique
[Termes IGN] pontRésumé : (auteur) Bridge engineering involves many discrete stages throughout the life cycle of a bridge, within both the delivery phase of the infrastructure project and the subsequent operation and maintenance of the asset. Each stage comprises multiple complex processes by large project teams and relies on the efficient exchange of information throughout. Bridge information modelling is a form of 3-dimensional product modelling and involves many of the same processes used in building information modelling. It presents the opportunity for improvements in information flow throughout a bridge life cycle. Significant developments have been seen in the area of bridge information modelling over the last decade. By identifying a number of case studies, this paper reviews how bridge information modelling is being used on current international bridge projects from conceptual design, through preliminary and detailed design, to construction, operation, assessment and maintenance. A literature review is performed on recent relevant academic studies in the areas of bridge engineering, site surveying, building information modelling, and information exchange. Numéro de notice : A2014-752 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article DOI : 10.4018/ij3dim.2014010103 En ligne : http://doi.org/10.4018/ij3dim.2014010103 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=76174
in International journal of 3-D information modeling > vol 3 n° 1 (January - March 2014) . - pp 29 - 39[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 138-2014011 RAB Revue Centre de documentation En réserve L003 Disponible Semi-automatic road/pavement modeling using mobile laser scanning / Alexandre Hervieu in ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, vol II-3 W3 (November 2013)
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Titre : Semi-automatic road/pavement modeling using mobile laser scanning Type de document : Article/Communication Auteurs : Alexandre Hervieu , Auteur ; Bahman Soheilian , Auteur Année de publication : 2013 Projets : 1-Pas de projet / Conférence : CMRT 2013, City Models, Roads and Traffic 12/11/2013 13/11/2013 Antalya Turquie OA ISPRS Annals Article en page(s) : pp 31 - 36 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Lasergrammétrie
[Termes IGN] chaussée
[Termes IGN] données lidar
[Termes IGN] données localisées 3D
[Termes IGN] modèle numérique
[Termes IGN] précision centimétriqueRésumé : (auteur) Scene analysis, in urban environments, deals with street modeling and understanding. A street mainly consists of roadways, pavements (i.e., walking areas), facades, still and moving obstacles. In this paper, we investigate the surface modeling of roadways and pavements using LIDAR data acquired by a mobile laser scanning (MLS) system. First, road border detection is considered. A system recognizing curbs and curb ramps while reconstructing the missing information in case of occlusion is presented. A user interface scheme is also described, providing an effective tool for semi-automatic processing of large amount of data. Then, based upon road edge information, a process that reconstructs surfaces of roads and pavements has been developed, providing a centimetric precision while reconstructing missing information. This system hence provides an important knowledge of the street, that may open perspectives in various domains such as path planning or road maintenance. Numéro de notice : A2013-794 Affiliation des auteurs : LASTIG MATIS (2012-2019) Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.5194/isprsannals-II-3-W3-31-2013 Date de publication en ligne : 08/10/2013 En ligne : http://dx.doi.org/10.5194/isprsannals-II-3-W3-31-2013 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=80400
in ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences > vol II-3 W3 (November 2013) . - pp 31 - 36[article]Full polarimetric bistatic radar imaging experiments on sets of dielectric cylinders above a conductive circular plate / Sami Bellez in IEEE Transactions on geoscience and remote sensing, vol 51 n° 7 Tome 2 (July 2013)
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Titre : Full polarimetric bistatic radar imaging experiments on sets of dielectric cylinders above a conductive circular plate Type de document : Article/Communication Auteurs : Sami Bellez, Auteur ; Hélène Roussel, Auteur ; Cyril Dahon, Auteur ; et al., Auteur Année de publication : 2013 Article en page(s) : pp 4164 - 4176 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image radar et applications
[Termes IGN] équation intégrale
[Termes IGN] forêt
[Termes IGN] image radar moirée
[Termes IGN] modèle numérique
[Termes IGN] polarimétrie radarRésumé : (Auteur) This paper presents fully polarimetric bistatic radar scattering measurements on groups of dielectric vertical and/or tilted square cross-sectional cylinders above a conductive circular plate in the frequency range of 6-18 GHz. The experiments have been conducted in the BABI facility at the French Aerospace Lab (ONERA). The imaging experiments consider an azimuthal bistatic radar configuration with a single incident direction and many scattering directions, in the way that the receiver positions synthesize a 1-D circular aperture in a horizontal plane around the focal point of the anechoic chamber. The bistatic scattering by the different sets of cylinders is also achieved through numerical simulations by using a volume-electric-field-integral-equation model employing a method of moments. First, theoretical and experimental bistatic radar-cross-section values are confronted. The comparisons show a good agreement for all polarization cases (vv, hv, vh, and hh). Then, a near-field reconstruction algorithm has been extended from a monostatic to our bistatic radar configuration in order to generate the reflectivity maps by focusing both theoretical and experimental scattered fields. The comparisons of the 2-D bistatic synthetic aperture radar images show that the two prediction techniques are accurate. Numéro de notice : A2013-376 Affiliation des auteurs : non IGN Thématique : FORET/IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1109/TGRS.2012.2227264 En ligne : https://doi.org/10.1109/TGRS.2012.2227264 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32514
in IEEE Transactions on geoscience and remote sensing > vol 51 n° 7 Tome 2 (July 2013) . - pp 4164 - 4176[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 065-2013071B RAB Revue Centre de documentation En réserve L003 Disponible Are numerical weather model outputs helpful to reduce tropospheric delay signals in InSAR data? / Youhei Kinoshita in Journal of geodesy, vol 87 n° 3 (March 2013)
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Titre : Are numerical weather model outputs helpful to reduce tropospheric delay signals in InSAR data? Type de document : Article/Communication Auteurs : Youhei Kinoshita, Auteur ; Masato Furuya, Auteur ; Thomas Hobiger, Auteur ; Ryuichi Ichikawa, Auteur Année de publication : 2013 Article en page(s) : pp 267 - 277 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image radar et applications
[Termes IGN] écho radar
[Termes IGN] image radar moirée
[Termes IGN] interféromètrie par radar à antenne synthétique
[Termes IGN] modèle atmosphérique
[Termes IGN] modèle numérique
[Termes IGN] propagation troposphériqueRésumé : (Auteur) Interferometric synthetic aperture radar phase data include not only signals due to crustal movements, but also those associated with microwave propagation delay through the atmosphere. In particular, the effect of water vapor can generate apparent signals in the order of a few centimeters or more, and prevent us from detecting such geophysical signals as those due to secular crustal deformation. To examine if and to what extent numerical weather model (NWM) outputs are helpful to reduce the tropospheric delay signals at spatial scales of 5–50 km wavelengths, we compared three approaches of tropospheric signal reduction, using 54 interferograms in central Hokkaido, Japan. The first approach is the conventional topography-correlated delay correction that is based on the regional digital elevation model (DEM). The second approach is based on the Japan Meteorological Agency’s operational meso-scale analysis model (MSM) data, where we compute tropospheric delays and subtract them from the interferogram. However, the MSM data are available at predefined epochs and their spatial resolution is about 10 km; therefore, we need to interpolate both temporally and spatially to match with interferograms. Expecting to obtain a more physically plausible reduction of the tropospheric effects, we ran a 1-km mesh high-resolution numerical weather model WRF (Weather Research and Forecasting model) by ourselves, using the MSM data as the initial and boundary conditions. The third approach is similar to the second approach, except that we make use of the WRF-based tropospheric data. Results show that if the topography-correlated phases are significant, both the conventional DEM-based approach and the MSM-based approach reveal comparable performances. However, when the topography-correlated phases are insignificant, none of the approaches can efficiently reduce the tropospheric phases. Although it could reduce the tropospheric signals in a local area, in none of the case studies did the WRF model produce the “best” performance. Whereas the global atmospheric model outputs are shown to be effective in reducing long-wavelength tropospheric signals, we consider that further improvements are needed for the initial and boundary condition data for high-resolution NWM, so that the NWM-based approach will become more reliable even in the case of a non-stratified troposphere. Numéro de notice : A2013-120 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1007/s00190-012-0596-x Date de publication en ligne : 25/10/2012 En ligne : https://doi.org/10.1007/s00190-012-0596-x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32258
in Journal of geodesy > vol 87 n° 3 (March 2013) . - pp 267 - 277[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 266-2013031 SL Revue Centre de documentation Revues en salle Disponible GIS-based calibration of MassMov2D / Monia Elisa Molinari in Transactions in GIS, vol 16 n° 2 (April 2012)
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Titre : GIS-based calibration of MassMov2D Type de document : Article/Communication Auteurs : Monia Elisa Molinari, Auteur ; M. Cannata, Auteur ; S. Begueria, Auteur ; et al., Auteur Année de publication : 2012 Article en page(s) : pp 215 - 231 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications SIG
[Termes IGN] analyse de sensibilité
[Termes IGN] effondrement de terrain
[Termes IGN] étalonnage
[Termes IGN] modèle numérique
[Termes IGN] risque naturel
[Termes IGN] simulation numérique
[Termes IGN] SuisseRésumé : (Auteur) MassMov2D is a numerical model for simulating runout and deposition of landslide phenomena over a complex topography that is implemented in the free GIS PCRaster. This research aims at improving the mechanism of MassMov2D calibration and verifying its capability of representing complex landslides. In this article the authors present the enhancement of the MassMov2D code due to the introduction of the Nash-Sutcliffe coefficient for model efficiency calculation; this enables the replacement of the inefficient ‘trial and error’ approach used for sensitivity analysis and calibration with a semi-automatic procedure. During this research the improved code was tested in a case study located on the Canaria Valley (Switzerland) where a complex landslide occurred. An optimal set of parameters were calculated for evaluating the effects of a possible further slope failure. The availability of a unique dataset of high resolution digital elevation models just before and after the collapse allowed precise evaluation of the sensitivity and calibration of the model with the new procedure. The results demonstrate that this model is capable of reproducing the observed deposits even though some model limitations were identified in steep slope areas. Finally the study presents the expected scenario due to a future landslide. Numéro de notice : A2012-161 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1111/j.1467-9671.2012.01316.x Date de publication en ligne : 13/04/2012 En ligne : https://doi.org/10.1111/j.1467-9671.2012.01316.x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31608
in Transactions in GIS > vol 16 n° 2 (April 2012) . - pp 215 - 231[article]Diameter and death of whorl and interwhorl branches in Atlas cedar (Cedrus atlantica Manetti): a model accounting for acrotony / François Courbet in Annals of Forest Science, Vol 69 n° 2 (March 2012)PermalinkComplexité(s) des modèles de l'architecture numérique / François Guéna (2012)PermalinkApplication of three satellite techniques in support of precipitation forecasts of a NWP [numerical weather prediction] model / H. Feidas in International Journal of Remote Sensing IJRS, vol 26 n° 24 (December 2005)PermalinkInferring and enforcing geometrical constraints on a 3D model for building reconstruction / Franck Taillandier (2005)PermalinkPermalinkModelling fuzzy topological relations between uncertain objects in a GIS / Wei Shi in Photogrammetric Engineering & Remote Sensing, PERS, vol 70 n° 8 (August 2004)PermalinkGround penetrating radar, 2nd edition / D.J. Daniels (2004)Permalinkvol 65 n° 5 - July 2003 - International conference of shape modeling (SMI) 2002, [actes], Banff, Canada, May 2002 (Bulletin de Graphical models) / B. WyvillPermalinkLa parcellisation du domaine public à Bordeaux, Nantes et Metz / O. Breisch in Géomètre, vol 2002 n° 6 (juin 2002)PermalinkAnalyse et modélisation de mouvements de versant déclenchés par le plan d'eau d'une retenue de barrage / Y. Cai (2000)PermalinkAdvances in environmental and ecological modelling / François Blasco (1999)PermalinkModeling the neutral-atmospheric propagation delay in radiometric space techniques / Virgilio de Brito Mendes (1999)PermalinkIntégration de la méthode des éléments finis dans un système d'information hydrologique pour la gestion stratégique des eaux de surface / M.S. Bel Hadj Kacem in Revue internationale de géomatique, vol 8 n° 4 (décembre 1998 – février 1999)PermalinkAn International Conference on thermal sensing and imaging diagnostic applications, Thermosense XII [12] / S.A. Semanovich (1990)PermalinkExperiments with edge-based stereo matching / J.S. Greenfeld in Photogrammetric Engineering & Remote Sensing, PERS, vol 55 n° 12 (december 1989)PermalinkCluster analysis of pine crown foliage patterns aid identification of mountain pine beetle current-attack / P.A. Murtha in Photogrammetric Engineering & Remote Sensing, PERS, vol 55 n° 1 (january 1989)PermalinkFestschrift Friedrich Ackermann zum 60. Geburtstag / Institut für Photogrammetrie der Universität Stuttgart (Stuttgart, Allemagne) (1989)PermalinkObjektartenkatalog / Adv (1989)PermalinkTersai l: a numerical model for combined analysis of vegetation canopy bidirectional reflectance and thermal emissions / A.S. Hope in Remote sensing of environment, vol 26 n° 3 (01/12/1988)PermalinkNumerical derivation of a hydrodynamic surface flow field from time sequential remotely sensed data / D.A. Stow in Remote sensing of environment, vol 23 n° 1 (01/10/1987)Permalink