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Combining terrestrial stereophotogrammetry, DGPS and GIS-based 3D voxel modelling in the volumetric recording of archaeological features / H. Orengo in ISPRS Journal of photogrammetry and remote sensing, vol 76 (February 2013)
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Titre : Combining terrestrial stereophotogrammetry, DGPS and GIS-based 3D voxel modelling in the volumetric recording of archaeological features Type de document : Article/Communication Auteurs : H. Orengo, Auteur Année de publication : 2013 Article en page(s) : pp 49 - 55 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications photogrammétriques
[Termes IGN] acquisition d'images
[Termes IGN] archéométrie
[Termes IGN] géoréférencement indirect
[Termes IGN] GPS en mode différentiel
[Termes IGN] grotte
[Termes IGN] modélisation 3D
[Termes IGN] orthoimage
[Termes IGN] photogrammétrie métrologique
[Termes IGN] système d'information géographique
[Termes IGN] voxelRésumé : (Auteur) Archaeological recording of structures and excavations in high mountain areas is greatly hindered by the scarce availability of both space, to transport material, and time. The Madriu-Perafita-Claror, InterAmbAr and PCR Mont Lozère high mountain projects have documented hundreds of archaeological structures and carried out many archaeological excavations. These projects required the development of a technique which could record both structures and the process of an archaeological excavation in a fast and reliable manner. The combination of DGPS, close-range terrestrial stereophotogrammetry and voxel based GIS modelling offered a perfect solution since it helped in developing a strategy which would obtain all the required data on-site fast and with a high degree of precision. These data are treated off-site to obtain georeferenced orthoimages covering both the structures and the excavation process from which site and excavation plans can be created. The proposed workflow outputs also include digital surface models and volumetric models of the excavated areas from which topography and archaeological profiles were obtained by voxel-based GIS procedures. In this way, all the graphic recording required by standard archaeological practices was met. Numéro de notice : A2013-091 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.isprsjprs.2012.07.005 En ligne : https://doi.org/10.1016/j.isprsjprs.2012.07.005 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32229
in ISPRS Journal of photogrammetry and remote sensing > vol 76 (February 2013) . - pp 49 - 55[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 081-2013021 RAB Revue Centre de documentation En réserve L003 Disponible A GIS-based vehicle mobility estimator for operational contexts / A. Homann in Transactions in GIS, vol 17 n° 1 (February 2013)
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Titre : A GIS-based vehicle mobility estimator for operational contexts Type de document : Article/Communication Auteurs : A. Homann, Auteur ; G. Grandjean, Auteur ; et al., Auteur Année de publication : 2013 Article en page(s) : pp 78 - 95 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Analyse spatiale
[Termes IGN] données localisées
[Termes IGN] estimateur
[Termes IGN] interface logicielle
[Termes IGN] itinéraire
[Termes IGN] mobilité humaine
[Termes IGN] navigation automobile
[Termes IGN] optimisation (mathématiques)
[Termes IGN] outil d'aide à la décision
[Termes IGN] système d'information géographiqueRésumé : (Auteur) A vehicle mobility estimator has been developed to produce decision aid maps for projecting civil or military forces on operational theatres. Based on the exploitation of classical geographical sources (e.g. digital elevation models, optical images, and vector databases) and thematic sources (e.g. climate, meteorological, pedological and land cover databases), the system computes speed maps for different kinds of vehicles moving both on-road and off-road. Such computations are realized through a ground-vehicle interaction module that estimates the vehicle performance from experimental results, numerical simulations and empirical relationships. The system's architecture is built using a GIS interface that manages the data, the computation and the presentation layers. An operational version of this tool has been tested and validated on several operational theatres in France and in northern Africa. The results show good agreement between the predicted mobility performance of various vehicles and those observed on the field. A case study is presented to illustrate the mobility maps and demonstrate their relevance in the decision-making chain depending on different climate contexts. A short application to itinerary optimization is presented as a promising future application. Numéro de notice : A2013-041 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1111/j.1467-9671.2012.01351.x Date de publication en ligne : 03/02/2013 En ligne : https://doi.org/10.1111/j.1467-9671.2012.01351.x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32179
in Transactions in GIS > vol 17 n° 1 (February 2013) . - pp 78 - 95[article]Joint wall mitigation and compressive sensing for indoor image reconstruction / E. Lagunas in IEEE Transactions on geoscience and remote sensing, vol 51 n° 2 (February 2013)
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Titre : Joint wall mitigation and compressive sensing for indoor image reconstruction Type de document : Article/Communication Auteurs : E. Lagunas, Auteur ; M. Armin, Auteur ; et al., Auteur Année de publication : 2013 Article en page(s) : pp 891 - 906 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image radar et applications
[Termes IGN] acquisition comprimée
[Termes IGN] carte d'intérieur
[Termes IGN] détection à travers-le-mur
[Termes IGN] fouillis d'échos
[Termes IGN] image radar
[Termes IGN] objet mobile
[Termes IGN] positionnement en intérieur
[Termes IGN] reconstruction d'imageRésumé : (Auteur) Compressive sensing (CS) for urban operations and through-the-wall radar imaging has been shown to be successful in fast data acquisition and moving target localizations. The research in this area thus far has assumed effective removal of wall electromagnetic backscatterings prior to CS application. Wall clutter mitigation can be achieved using full data volume which is, however, in contradiction with the underlying premise of CS. In this paper, we enable joint wall clutter mitigation and CS application using a reduced set of spatial-frequency observations in stepped frequency radar platforms. Specifically, we demonstrate that wall mitigation techniques, such as spatial filtering and subspace projection, can proceed using fewer measurements. We consider both cases of having the same reduced set of frequencies at each of the available antenna locations and also when different frequency measurements are employed at different antenna locations. The latter casts a more challenging problem, as it is not amenable to wall removal using direct implementation of filtering or projection techniques. In this case, we apply CS at each antenna individually to recover the corresponding range profile and estimate the scene response at all frequencies. In applying CS, we use prior knowledge of the wall standoff distance to speed up the convergence of the orthogonal matching pursuit for sparse data reconstruction. Real data are used for validation of the proposed approach. Numéro de notice : A2013-084 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1109/TGRS.2012.2203824 En ligne : https://doi.org/10.1109/TGRS.2012.2203824 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32222
in IEEE Transactions on geoscience and remote sensing > vol 51 n° 2 (February 2013) . - pp 891 - 906[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 065-2013021 RAB Revue Centre de documentation En réserve L003 Disponible Mitigating the impact of ionospheric cycle slips in GNSS observations / Simon Banville in Journal of geodesy, vol 87 n° 2 (February 2013)
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Titre : Mitigating the impact of ionospheric cycle slips in GNSS observations Type de document : Article/Communication Auteurs : Simon Banville, Auteur ; R. Langley, Auteur Année de publication : 2013 Article en page(s) : pp 179 - 193 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie spatiale
[Termes IGN] Canada
[Termes IGN] données GNSS
[Termes IGN] positionnement ponctuel précis
[Termes IGN] propagation ionosphérique
[Termes IGN] scintillation
[Termes IGN] traitement de données GNSSRésumé : (Auteur) Processing of data from global navigation satellite systems (GNSS), such as GPS, GLONASS and Galileo, can be considerably impeded by disturbances in the ionosphere. Cycle-slip detection and correction thus becomes a crucial component of robust software. Still, dealing with ionospheric cycle slips is not trivial due to scintillation effects in both the phase and the amplitude of the signals. In this contribution, a geometry-based approach with rigorous handling of the ionosphere is presented. A detailed analysis of the cycle-slip correction process is also tackled by examining its dependence on phase and code noise, non-dispersive effects and, of course, the ionosphere. The importance of stochastic modeling in validating the integer cycle-slip candidates is emphasized and illustrated through simulations. By examining the relationship between ionospheric bias and ionospheric constraint, it is shown that there is a limit in the magnitude of ionospheric delay variation that can be handled by the cycle-slip correction process. Those concepts are applied to GNSS data collected by stations in northern Canada, and show that enhanced cycle-slip detection can lead to decimeter-level improvements in the accuracy of kinematic PPP solutions with a 30-s sampling interval. Cycle-slip correction associated with ionospheric delay variations exceeding 50 cm is also demonstrated, although there are risks with such a procedure and these are pointed out. Numéro de notice : A2013-100 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1007/s00190-012-0604-1 Date de publication en ligne : 04/11/2012 En ligne : https://doi.org/10.1007/s00190-012-0604-1 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32238
in Journal of geodesy > vol 87 n° 2 (February 2013) . - pp 179 - 193[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 266-2013021 SL Revue Centre de documentation Revues en salle Disponible Through-the-wall human motion indication using sparsity-driven change detection / F. Ahmad in IEEE Transactions on geoscience and remote sensing, vol 51 n° 2 (February 2013)
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Titre : Through-the-wall human motion indication using sparsity-driven change detection Type de document : Article/Communication Auteurs : F. Ahmad, Auteur ; M. Amin, Auteur Année de publication : 2013 Article en page(s) : pp 881 - 890 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image radar et applications
[Termes IGN] détection à travers-le-mur
[Termes IGN] détection de changement
[Termes IGN] filtrage du signal
[Termes IGN] fouillis d'échos
[Termes IGN] image radar
[Termes IGN] objet mobile
[Termes IGN] positionnement en intérieur
[Termes IGN] reconstruction d'imageRésumé : (Auteur) We consider sparsity-driven change detection (CD) for human motion indication in through-the-wall radar imaging and urban sensing applications. Stationary targets and clutter are removed via CD, which converts a populated scene into a sparse scene of a few human targets moving inside enclosed structures and behind walls. We establish appropriate CD models for various possible human motions, ranging from translational motions to sudden short movements of the limbs, head, and/or torso. These models permit scene reconstruction within the compressive sensing framework. Results based on laboratory experiments show that a sizable reduction in the data volume is achieved using the proposed approach without a degradation in system performance. Numéro de notice : A2013-083 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1109/TGRS.2012.2203310 En ligne : https://doi.org/10.1109/TGRS.2012.2203310 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32221
in IEEE Transactions on geoscience and remote sensing > vol 51 n° 2 (February 2013) . - pp 881 - 890[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 065-2013021 RAB Revue Centre de documentation En réserve L003 Disponible VGI, Österreichische Zeitschrift für Vermessung & GeoInformation (Bulletin de VGI, Österreichische Zeitschrift für Vermessung & GeoInformation) / Österreichische Gesellschaft für Vermessung und Geoinformation (Autriche)
PermalinkAnalyse fonctionnelle du futur système de repositionnement pour les fermetures de l'expérience ATLAS / Mehdi Daakir (2013)
PermalinkPermalinkPermalinkDeveloping a GNSS position and timing authentication testbed: GNSS vulnerability and mitigation techniques / Oscar Pozzobon in Inside GNSS, vol 8 n° 1 (January - February 2013)
PermalinkPermalinkE-GVAP, un proyecto europeo meteorológico con GNSS. Participación del IGN / Marcelino Valdés Pérez de Vargas in Topografia y cartografia, vol 28 n° 165 (2013)
PermalinkPermalinkÉtude comparative des précisions d’approximation de l’ITRF et application à la redéfinition des systèmes géodésiques utilisés au sein du groupe Total / Simon Olivé (2013)
PermalinkEtude d'opportunité de développement sur le marché de la topographie des réseaux / Soufiane Laqbayli (2013)
PermalinkÉtude d'opportunité et de faisabilité de l'extension du canevas topographique de la ville de Rennes sur le territoire de la Communauté d'agglomération de Rennes-Métropole / Elodie Legendre (2013)
PermalinkÉtude et optimisation du fonctionnement des systèmes 3D de positionnement Topcon sur les machines de travaux publics / Bastien Lopes (2013)
PermalinkPermalinkGéoréférencement tridimensionnel des réseaux de distribution de chaleur de la Communauté Urbaine de Strasbourg / Bruce Beaurepère (2013)
PermalinkGetting at the truth: A civilian GPS position authentication system / Z. Li in GPS world, vol 24 n° 1 (January 2013)
PermalinkIAG WG SC1.3 on regional dense velocity fields : First results and steps ahead / Carine Bruyninx (2013)
PermalinkPermalinkIntegration of galileo system in a positioning software, and estimation of Galileo system benefits / Laurane Boulanger (2013)
PermalinkJoint estimation of moving target reflectivity and velocity via AT-InSAR systems based on complex interferometric data / Alessandra Budillon in ISPRS Journal of photogrammetry and remote sensing, vol 75 (January 2013)
PermalinkPermalinkPermalinkPerformance of real-time precise point positioning / Junping Chen in Marine geodesy, vol 36 n° 1 (January - March 2013)
PermalinkPermalinkReliability of partial ambiguity fixing with multiple GNSS constellations / J. Wang in Journal of geodesy, vol 87 n° 1 (January 2013)
PermalinkPermalinkPermalinkGalileo and GNSS to the fore: Activities of the European navigation support office / W. Enderle in GPS world, vol 23 n° 12 (December 2012)
PermalinkGLONASS today and tomorrow: Fully operational system modernizes for the multi-GNSS world / V. Davydov in GPS world, vol 23 n° 12 (December 2012)
PermalinkIntroduction to a portable stereo mapping system for unmanned vehicles / Julien Li-Chee-Ming in Geomatica, vol 66 n° 4 (December 2012)
PermalinkMéthodes de travail dans les réseaux GNSS, 2ème partie Le positionnement statique suivant les méthodes indirectes du pivot central ou de la station virtuelle. / Romain Legros in XYZ, n° 133 (décembre 2012 - février 2013)
PermalinkLe repère international de référence terrestre (ITRF) : état actuel et perspectives / Zuheir Altamimi in XYZ, n° 133 (décembre 2012 - février 2013)
PermalinkL'âge d'or des cartes marines : un voyage au long cours ... / M. Mayo in Géomètre, n° 2097 (novembre 2012)
Permalink"I never use 'maps' anymore" : Engaging with sat nav technologies and the implications for cartographic literacy and spatial awareness / J. Speake in Cartographic journal (the), vol 49 n° 4 (November 2012)
PermalinkNon-Gaussian noises: What about Gaussian vs. non-Gaussian noise in inertial/GNSS integration? / Mark Petovello in Inside GNSS, vol 7 n° 6 (November - December 2012)
PermalinkNontidal ocean loading: amplitudes and potential effects in GPS height time series / Tonie M. van Dam in Journal of geodesy, vol 86 n° 11 (November 2012)
PermalinkThe application of the model of coordinate S-transformation for stability analysis of datum points in high-precision GPS deformation monitoring networks / Jiming Guo in Journal of applied geodesy, vol 6 n° 3-4 (November 2012)
PermalinkZero-difference GPS ambiguity resolution at CNES–CLS IGS Analysis Center / Sylvain Loyer in Journal of geodesy, vol 86 n° 11 (November 2012)
PermalinkPermalinkWeb GIS goes nuclear in Taiwan / Taiwan atomic energy council in GEO: Geoconnexion international, vol 11 n° 9 (october 2012)
PermalinkExploiting the Galileo E5 wideband signal for improved single-frequency precise positioning / H. Toho Diessongo in Inside GNSS, vol 7 n° 5 (September - October 2012)
PermalinkFitted, green, and volunteered: Legal and survey complexities of future boundary systems / R. Benett in Geomatica, vol 66 n° 3 (September 2012)
PermalinkLe futur de la navigation par satellites : une précision à un centimètre avec le PPP / O. Chassagne in XYZ, n° 132 (septembre - novembre 2012)
PermalinkImproving GNSS attitude determination using inertial and magnetic field sensors / J. Roth in Inside GNSS, vol 7 n° 5 (September - October 2012)
PermalinkMéthodes de travail dans les réseaux GNSS, 1ère partie Le positionnement statique temps-réel par "filtrage et moyenne de positions NRTK" / Romain Legros in XYZ, n° 132 (septembre - novembre 2012)
PermalinkLe nouveau pont de Ténérez : la topographie au service d'un défi technique / J. Monnerie in XYZ, n° 132 (septembre - novembre 2012)
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