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Evaluating the benefits of multimodal interface design for compass-a mobile GIS / J. Doyle in Geoinformatica, vol 14 n° 2 (April 2010)
[article]
Titre : Evaluating the benefits of multimodal interface design for compass-a mobile GIS Type de document : Article/Communication Auteurs : J. Doyle, Auteur ; Michela Bertolotto, Auteur ; D. Wilson, Auteur Année de publication : 2010 Article en page(s) : pp 135 - 162 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Systèmes d'information géographique
[Termes IGN] interface multimodale
[Termes IGN] interface utilisateur
[Termes IGN] positionnement par GNSS
[Termes IGN] service fondé sur la position
[Termes IGN] SIG nomade
[Termes IGN] utilisateur nomadeRésumé : (Auteur) The context of mobility raises many issues for geospatial applications providing location-based services. Mobile device limitations, such as small user interface footprint and pen input whilst in motion, result in information overload on such devices and interfaces which are difficult to navigate and interact with. This has become a major issue as mobile GIS applications are now being used by a wide group of users, including novice users such as tourists, for whom it is essential to provide easy-to-use applications. Despite this, comparatively little research has been conducted to address the mobility problem. We are particularly concerned with the limited interaction techniques available to users of mobile GIS which play a primary role in contributing to the complexity of using such an application whilst mobile. As such, our research focuses on multimodal interfaces as a means to present users with a wider choice of modalities for interacting with mobile GIS applications. Multimodal interaction is particularly advantageous in a mobile context, enabling users of location-based applications to choose the mode of input that best suits their current task and location. The focus of this article concerns a comprehensive user study which demonstrates the benefits of multimodal interfaces for mobile geospatial applications. Copyright Springer Numéro de notice : A2010-063 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/INFORMATIQUE Nature : Article DOI : 10.1007/s10707-009-0079-2 Date de publication en ligne : 10/03/2009 En ligne : https://doi.org/10.1007/s10707-009-0079-2 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30259
in Geoinformatica > vol 14 n° 2 (April 2010) . - pp 135 - 162[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 057-2010021 RAB Revue Centre de documentation En réserve L003 Disponible Real-time adjustment underwater positioning system for submarines / W. Cheng in Marine geodesy, vol 33 n° 2-3 (April - September 2010)
[article]
Titre : Real-time adjustment underwater positioning system for submarines Type de document : Article/Communication Auteurs : W. Cheng, Auteur ; J. Jhou, Auteur Année de publication : 2010 Article en page(s) : pp 117 - 134 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Navigation et positionnement
[Termes IGN] compensation
[Termes IGN] ligne de base
[Termes IGN] modèle géométrique
[Termes IGN] modèle numérique de terrain
[Termes IGN] onde acoustique
[Termes IGN] positionnement cinématique en temps réel
[Termes IGN] relief sous-marin
[Termes IGN] sous-marin
[Termes IGN] temps réel
[Termes IGN] traitement automatique de données
[Termes IGN] vitesseRésumé : (Auteur) A rapid real-time adjustment scheme is proposed for improving the precision of the conventional short-base line (SBL) positioning fix system used by submarines and other underwater vehicles. In the proposed approach, an initial position estimate is obtained by solving the conventional SBL tracking equations of the submarine given the assumptions of a constant speed of sound in water and a straight-line propagation path. In the first stage of the real-time adjustment procedure, this initial estimate is corrected using an iterative computation scheme based on a 3D geometry model. The improved position estimate is then used to compute a new, more accurate value of the speed of sound in water. Finally, in the second stage of the real-time adjustment procedure, the corrected speed of sound in water and the discrepancy between the original and corrected position estimates obtained in the first adjustment procedure are applied to update the coordinates of the submarine based on the second signal received from the pinger. The numerical results show that the proposed real-time adjustment system yields a significant improvement in the accuracy of the positioning fix estimates compared to those obtained from the conventional SBL method or the SBL method with the first adjustment procedure only. Numéro de notice : A2010-555 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article DOI : 10.1080/01490419.2010.492279 Date de publication en ligne : 16/05/2011 En ligne : https://doi.org/10.1080/01490419.2010.492279 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30747
in Marine geodesy > vol 33 n° 2-3 (April - September 2010) . - pp 117 - 134[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 230-2010021 RAB Revue Centre de documentation En réserve L003 Disponible 1 antenna, 3 dimensions: GPS flight control in UAV operations / C. Kee in Inside GNSS, vol 5 n° 2 (March - April 2010)
[article]
Titre : 1 antenna, 3 dimensions: GPS flight control in UAV operations Type de document : Article/Communication Auteurs : C. Kee, Auteur ; A. Cho, Auteur ; J. Kim, Auteur ; et al., Auteur Année de publication : 2010 Article en page(s) : 9 p. ; pp 26 - 34 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de géodésie spatiale
[Termes IGN] antenne GNSS
[Termes IGN] drone
[Termes IGN] GPS-INS
[Termes IGN] hauteur de vol
[Termes IGN] système de contrôleRésumé : (Auteur) GPS provides position and velocity measurements, from which attitude information can also be synthesized for a fixed wing-aircraft. This suggests the potential of implementing a single-antenna GPS receiver as the sole navigation sensor for an aircraft. For several years, researchers at Seoul National University have investigated the feasibility of developing a low-cost automatic flight control system based on this design. Flight tests described have demonstrated that a single-antenna GPS receiver could be used as a primary sensor for low-cost flight control system of an unmanned aerial vehicle (UAV) or a backup system for an expensive UAV or general aviation (GA). Copyright Gibbons Media & Research LLC Numéro de notice : A2010-620 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=33570
in Inside GNSS > vol 5 n° 2 (March - April 2010) . - 9 p. ; pp 26 - 34[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 159-2010021 SL Revue Centre de documentation Revues en salle Disponible Documents numériques
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1 antenna, 3 dimensions_kee - pdf éditeurAdobe Acrobat PDF Consistency of accuracy assessment indices for soft classification: simulation analysis / J. Chen in ISPRS Journal of photogrammetry and remote sensing, vol 65 n° 2 (March - April 2010)
[article]
Titre : Consistency of accuracy assessment indices for soft classification: simulation analysis Type de document : Article/Communication Auteurs : J. Chen, Auteur ; X. Zhu, Auteur ; H. Imura, Auteur ; X. Chen, Auteur Année de publication : 2010 Article en page(s) : pp 156 - 164 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image
[Termes IGN] analyse comparative
[Termes IGN] classification
[Termes IGN] erreur moyenne quadratique
[Termes IGN] estimation de précision
[Termes IGN] Kappa de Cohen
[Termes IGN] matrice de confusion
[Termes IGN] niveau d'analyse
[Termes IGN] précision cartographique
[Termes IGN] précision décimétrique
[Termes IGN] simulationRésumé : (Auteur) Accuracy assessment plays a crucial role in the implementation of soft classification. Even though many indices of accuracy assessment for soft classification have been proposed, the consistencies among these indices are not clear, and the impact of sample size on these consistencies has not been investigated. This paper examines two kinds of indices: map-level indices, including root mean square error (rmse), kappa, and overall accuracy (oa) from the sub-pixel confusion matrix (SCM); and category-level indices, including crmse, user accuracy (ua) and producer accuracy (pa). A careful simulation was conducted to investigate the consistency of these indices and the effect of sample size. The major findings were as follows: (1) The map-level indices are highly consistent with each other, whereas the category-level indices are not. (2) The consistency among map-level and category-level indices becomes weaker when the sample size decreases. (3) The rmse is more affected by error distribution among classes than are kappa and oa. Based on these results, we recommend that rmse can be used for map-level accuracy due to its simplicity, although kappa and oa may be better alternatives when the sample size is limited because the two indices are affected less by the error distribution among classes. We also suggest that crmse should be provided when map users are not concerned about the error source, whereas ua and pa are more useful when the complete information about different errors is required. The results of this study will be of benefit to the development and application of soft classifiers. Copyright ISPRS Numéro de notice : A2010-090 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.isprsjprs.2009.10.003 En ligne : https://doi.org/10.1016/j.isprsjprs.2009.10.003 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30286
in ISPRS Journal of photogrammetry and remote sensing > vol 65 n° 2 (March - April 2010) . - pp 156 - 164[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 081-2010021 SL Revue Centre de documentation Revues en salle Disponible Hybrid positioning: a prototype system for navigation in GPS-challenged environments / Chris Rizos in GPS world, vol 21 n° 3 (March 2010)
[article]
Titre : Hybrid positioning: a prototype system for navigation in GPS-challenged environments Type de document : Article/Communication Auteurs : Chris Rizos, Auteur ; Dorota A. Grejner-Brzezinska, Auteur ; Charles K. Toth, Auteur ; A. Dempster, Auteur Année de publication : 2010 Article en page(s) : pp 42 - 47 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Navigation et positionnement
[Termes IGN] atténuation du signal
[Termes IGN] Australie
[Termes IGN] géonavigateur
[Termes IGN] GPS assisté pour la navigation (technologies)
[Termes IGN] GPS-INS
[Termes IGN] positionnement par GPS
[Termes IGN] signal GPS
[Termes IGN] système d'extensionRésumé : (Editeur) GPS has its limitations. [...] We know GPS works very well when there is direct line-of-sight view between the satellite tranmitters and the receivers and carrier-phase measurements can provide decimeter- and even centimeter-accuacies. So why not develop a ground-based system that works in a similar way to GPS, which would allow you to place the transmitters wherever you like ? Well, such as a system has indeed been developed and this month's column, a team of australian and U.S. researchers describes how they integrated the ground-based system together with GPS and INS to create a hybrid system that provides precise and accurate position information continuously in a variety of environments where GPS alone comes up short. Copyright Questex Media Group Numéro de notice : A2010-082 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30278
in GPS world > vol 21 n° 3 (March 2010) . - pp 42 - 47[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 067-2010031 RAB Revue Centre de documentation En réserve L003 Disponible Real-time registration of airborne laser with sub-decimeter accuracy / Jan Skaloud in ISPRS Journal of photogrammetry and remote sensing, vol 65 n° 2 (March - April 2010)PermalinkWide-area RTK: high precision positioning on a continental scale / Manuel Hernández-Pajares in Inside GNSS, vol 5 n° 2 (March - April 2010)PermalinkGoing 3D: personal Nav and LBS / R. Chen in GPS world, vol 21 n° 2 (February 2010)PermalinkLangres : un SIG encyclopédique / Vincent Habchi in Géomatique expert, n° 73 (01/02/2010)PermalinkMobile-phone GPS antennas / T. Haddrell in GPS world, vol 21 n° 2 (February 2010)PermalinkMulti-sensor, multi-network positioning / R. Chen in GPS world, vol 21 n° 2 (February 2010)PermalinkAbsolute seafloor vertical positioning using combined pressure gauge and kinematic GPS data / Valérie Ballu in Journal of geodesy, vol 84 n° 1 (January 2010)PermalinkAcoustics & GPS: real-time scoring and classification of munitions / M. Cardoza in Inside GNSS, vol 5 n° 1 (January - February 2010)PermalinkAn introduction to the technology mobile mapping systems / Gordon Petrie in Geoinformatics, vol 13 n° 1 (01/01/2010)PermalinkArbeitsgruppe "Automation in der Kartographie, Photogrammetrie und GIS", Tagung 2009 / Bundesamt für Kartographie und Geodäsie (2010)PermalinkArbeitsgruppe "Automation in der Kartographie, Photogrammetrie und GIS", Tagung 2010 / Bundesamt für Kartographie und Geodäsie (2010)PermalinkCollective detection: enhancing GNSS receiver sensitivity by combining signals from multiple satellites / Penina Axelrad in GPS world, vol 21 n° 1 (January 2010)PermalinkCombined integrity of GPS and Galileo / F. Kneissl in Inside GNSS, vol 5 n° 1 (January - February 2010)PermalinkCrowd sourcing for updating national databases and International Calibration and Orientation Workshop EuroCOW 2010, 10 - 12 February 2010, Castelldefels, Spain [final reports] / European Spatial Data Research EuroSDR (2010)PermalinkEstimation of crustal vertical movements with GPS in a geocentric frame, within the framework of the TIGA project / Alvaro Santamaria Gomez (2010)PermalinkEtude des erreurs systématiques liées à la détermination du géocentre par les mesures DORIS / Marie-Line Gobinddass (2010)PermalinkGeographic information science, 6th international conference, GIScience 2010, Zurich, Switzerland, September 14-17, 2010 / Sara Irina Fabrikant (2010)PermalinkGlobal gravity field determination using the GPS measurements made onboard the low Earth orbiting satellite CHAMP / Lars Prange (2010)PermalinkGNSS for vehicle control / D.M. Bevly (2010)PermalinkPermalinkIntégration de la question des déchets dans le SIG de la communauté de communes du pays Fouesnantais / Emmanuel Chauchaix (2010)PermalinkPermalinkMéthodologie GPS, mesure des déformations verticales et humidité atmosphérique / Marie-Noëlle Bouin (2010)PermalinkNavigation Signal Processing for GNSS Software Receivers / T. Pany (2010)PermalinkPermalinkPrecise geodetic infrastructure: national requirements for a shared resource / National research council of USA (2010)PermalinkPreliminary works on creation of the new geoid model HRG2009 / I. Grgic (01/01/2010)PermalinkSciences of geodesy, vol 1. Advanced and future directions / Guochang Xu (2010)PermalinkSea surface topography and marine geoid by airborne laser altimetry and shipborne ultrasound altimetry / Philippe Limpach (2010)PermalinkShifting satellites: GNSS update / Huibert-Jan Lekkerkerk in Geoinformatics, vol 13 n° 1 (01/01/2010)PermalinkSpace-time reference systems for monitoring global change and for precise navigation / Axel Nothnagel (2010)PermalinkU-SBAS: A universal multi-SBAS standard to ensure compatibility, interoperability and interchangeability / Mohamed Sahmoudi (2010)PermalinkAugmenting the Iterative Closest Point (ICP) alignment algorithm with intensity / S. Hefford in Geomatica, vol 63 n° 4 (December 2009)PermalinkComparison of measurement techniques and static theory applied to concrete beam deformation / Petri Rönnholm in Photogrammetric record, vol 24 n° 128 (December 2009 - February 2010)PermalinkA dynamic reference surface for heights in Canada / E. Rangelova in Geomatica, vol 63 n° 4 (December 2009)PermalinkFinding anomalies in high-density Lidar point clouds / J. Harrison in Geomatica, vol 63 n° 4 (December 2009)PermalinkGaliléo: we've got a problem ! / Anonyme in Géomatique expert, n° 72 (01/12/2009)PermalinkGénération automatisée d'environnements géographiques virtuels informés : modélisation topologique et abstraction géométrique d'environnements géographiques / M. Mekni in Revue internationale de géomatique, vol 19 n° 4 (décembre 2009 – février 2010)PermalinkGeolocation and time: an evolution of the millenial pair, Part 2 / J. Triglav in Geoinformatics, vol 12 n° 8 (01/12/2009)PermalinkDe la géométrie des réseaux viaires à l'organisation spatiale intra-urbaine : une approche de la comparaison des formes de villes par la simulation orientée agents / Thomas Louail in Revue internationale de géomatique, vol 19 n° 4 (décembre 2009 – février 2010)PermalinkImproving GPS localization with vision and inertial sensing / A. Fakih in Geomatica, vol 63 n° 4 (December 2009)PermalinkKerlink : le GPS M2M / Anonyme in Géomatique expert, n° 72 (01/12/2009)PermalinkA kinematic GPS methodology for sea surface mapping, Vanuatu / Marie-Noëlle Bouin in Journal of geodesy, vol 83 n° 12 (December 2009)PermalinkResearch contibutions in the field of enginering surveying within period 2007-2008 (Bulletin de Reports on geodesy) / Witold ProszynskiPermalink4.810,45 m pour le toit de l'Europe / Michel Ravelet in Géomètre, n° 2064 (novembre 2009)Permalink