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Adéquation algorithme architecture pour la localisation basée image sur système embarqué / David Vandergucht (2018)
Titre : Adéquation algorithme architecture pour la localisation basée image sur système embarqué Type de document : Article/Communication Auteurs : David Vandergucht, Auteur ; Mehdi Darouich, Auteur ; Valérie Gouet-Brunet , Auteur ; Thibaut Vercueil, Auteur ; Laurent Schneider, Auteur ; Thomas Peyret, Auteur ; Benoit Tain, Auteur ; Maria Lepecq, Auteur Editeur : Saint-Mandé : Institut national de l'information géographique et forestière - IGN (2012-) Année de publication : 2018 Projets : THINGS2D0 / Gouet-Brunet, Valérie Conférence : CFPT 2018, Conférence Française de Photogrammétrie et de Télédétection 25/06/2018 28/06/2018 Champs-sur-Marne France Open Access Proceedings Importance : 3 p. Format : 21 x 30 cm Note générale : bibliographie Langues : Français (fre) Descripteur : [Vedettes matières IGN] Navigation et positionnement
[Termes IGN] chaîne de traitement
[Termes IGN] estimation de pose
[Termes IGN] localisation basée image
[Termes IGN] méthode robuste
[Termes IGN] navigation pédestre
[Termes IGN] réalité augmentéeRésumé : (auteur) Dans cet article, nous présentons l’adaptation sur système embarqué d’une chaîne de traitements dédiée à la localisation basée image pour l’aide à la navigation pédestre par réalité augmentée. L’étape d’estimation de la pose du capteur d’acquisition de l’image est une étape clé et sensible, en termes de qualité de la pose attendue comme en complexité et temps d’estimation de cette pose. Nous décrivons l’approche d’estimation de pose et la solution hardware choisies, ainsi que leurs adaptations en vue d’une adéquation optimale entre algorithme et architecture. Des expériences en conditions réalistes de navigation pédestre, où les mouvements sont complexes, montrent la robustesse et l’efficacité de la solution proposée, qui est prometteuse pour une future application sur système léger impliquant l’estimation précise de la pose. Numéro de notice : C2018-005 Affiliation des auteurs : LASTIG MATIS+Ext (2012-2019) Thématique : IMAGERIE Nature : Poster nature-HAL : Poster-avec-CL DOI : sans Date de publication en ligne : 28/06/2018 En ligne : https://rfiap2018.ign.fr/programmeCFPT Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=90333 Documents numériques
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Adéquation algorithme architecture ... - pdf éditeurAdobe Acrobat PDF I’m walking here! Checking the accuracy of an inertial-based pedestrian navigation system with a drone / Marcin Uradzinski in GPS world, vol 28 n° 6 (June 2017)
[article]
Titre : I’m walking here! Checking the accuracy of an inertial-based pedestrian navigation system with a drone Type de document : Article/Communication Auteurs : Marcin Uradzinski, Auteur ; Hang Guo, Auteur ; Clifford Mugnier, Auteur Année de publication : 2017 Article en page(s) : pp 58 - 64 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Navigation et positionnement
[Termes IGN] drone
[Termes IGN] filtre de Kalman
[Termes IGN] navigation à l'estime
[Termes IGN] navigation pédestre
[Termes IGN] piéton
[Termes IGN] positionnement en intérieurRésumé : (Auteur) Satellite navigation systems have achieved great success in personal positioning applications. Nowadays, GNSS is an essential tool for outdoor navigation, but locating a user’s position in degraded and denied indoor environments is still a challenging task. During the past decade, methodologies have been proposed based on inertial sensors for determining a person’s location to solve this problem. One such solution is a personal pedestrian dead reckoning (PDR) system, which helps in obtaining a seamless indoor/outdoor position. Built-in sensors measure the acceleration to determine pace count and estimate the pace length to predict position with heading information coming from angular sensors such as magnetometers or gyroscopes. PDR positioning solutions find many applications in security monitoring, personal services, navigation in shopping centers and hospitals and for guiding blind pedestrians. Several dead-reckoning navigation algorithms for use with inertial measurement units (IMUs) have been proposed. However, these solutions are very sensitive to the alignment of the sensor units, the inherent instrumental errors, and disturbances from the ambient environment - problems that cause accuracy to decrease over time. In such situations, additional sensors are often used together with an IMU, such as ZigBee radio beacons with position estimated from received signal strength. In this article, we present a PDR indoor positioning system we designed, tested and analyzed. It is based on the pace detection of a foot-mounted IMU, with the use of extended Kalman filter (EKF) algorithms to estimate the errors accumulated by the sensors. Numéro de notice : A2017-294 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=85332
in GPS world > vol 28 n° 6 (June 2017) . - pp 58 - 64[article]The differentiation of point symbols using selected visual variables in the mobile augmented reality system / Łukasz Halik in Cartographic journal (the), Vol 54 n° 2 (May 2017)
[article]
Titre : The differentiation of point symbols using selected visual variables in the mobile augmented reality system Type de document : Article/Communication Auteurs : Łukasz Halik, Auteur ; Beata Medyńska-Gulij, Auteur Année de publication : 2017 Article en page(s) : pp 147 - 156 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Rédaction cartographique
[Termes IGN] appareil portable
[Termes IGN] figuré ponctuel
[Termes IGN] navigation pédestre
[Termes IGN] piéton
[Termes IGN] Pologne
[Termes IGN] réalité augmentée
[Termes IGN] seuillage
[Termes IGN] symbole graphique
[Termes IGN] test de performance
[Termes IGN] variable visuelleRésumé : (Auteur) On the basis of initial studies devoted to a better understanding of how the public user (a pedestrian in the city) perceives cartographic symbols in the mobile augmented reality system, we present an attempt to determine the threshold values of differentiation for three visual variables. The variables of size, transparency, and focus were implemented into image point symbols representing five types of objects. The set of symbols was designed in accordance with the rules of cartographic design taking into consideration an analysis of 19 professional tourist works. The symbols were presented on the screen of a mobile device in a system imitating the augmented reality system against four different backgrounds: white, a wall, and two typical urban landscapes. The results of an internet survey conducted using a tablet at four locations in Poznan (Poland) allowed us to determine the following: threshold differentiation values for the analysed variables, indication of the dependence on the type of background displayed on the mobile device in augmented reality, and the advantage of using a combination of visual variables. Numéro de notice : A2017-324 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/00087041.2016.1253144 En ligne : http://dx.doi.org/10.1080/00087041.2016.1253144 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=85397
in Cartographic journal (the) > Vol 54 n° 2 (May 2017) . - pp 147 - 156[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 030-2017021 RAB Revue Centre de documentation En réserve L003 Disponible
Titre : Advances in cartography and GIScience : Selections from the International Cartographic Conference 2017 Type de document : Actes de congrès Auteurs : Michael P. Peterson, Éditeur scientifique Editeur : Berlin, Heidelberg, Vienne, New York, ... : Springer Année de publication : 2017 Collection : Lecture notes in Geoinformation and Cartography Sous-collection : Publications of the International Cartographic Association ICA Conférence : ICC 2017, 28th International Cartographic Conference ICA 02/07/2017 07/07/2017 Washington DC Etats-Unis OA Proceedings of the ICA Importance : 542 p. Format : 15 x 21 cm ISBN/ISSN/EAN : 978-3-319-57335-9 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Cartographie
[Termes IGN] analyse numérique
[Termes IGN] calcul d'itinéraire
[Termes IGN] carte interactive
[Termes IGN] cartographie collaborative
[Termes IGN] conception cartographique
[Termes IGN] données localisées des bénévoles
[Termes IGN] géovisualisation
[Termes IGN] navigation pédestre
[Termes IGN] qualité cartographique
[Termes IGN] qualité des données
[Termes IGN] temps réel
[Termes IGN] trafic routierNote de contenu : Part 1 : The Span of Cartography
- Cartographic Memory Preservation of the Petrópolis City in Brazil: Koeler Map Scanning Using Photographic Survey. Manoel do C. Fernandes, Tainá Laeta, Deivison F. dos Santos, Paulo M. L. de Menezes
- Location Spoofing in a Location-Based Game: A Case Study of Pokémon Go. Bo Zhao, Qinying Chen
Part 2 : Crowdsourcing and Data
- Educational Aspects of Crowdsourced Noise Mapping. Andrea Pődör, László Zentai
- Crowd and Community Sourced Data Quality Assessment. Laurence Jolivet, Ana-Maria Olteanu-Raimond
- Crowdsourcing Mapping and Participatory Planning Support System: Case Study of Brno, Czechia. Jiří Pánek, Vít Pászto
- A Framework for Enhancing Real-Time Social Media Data to Improve the Disaster Management Process. Syed Attique Shah, Dursun Zafer Şeker, Hande Demirel
- Building a Real-Time Geo-Targeted Event Observation (Geo) Viewer for Disaster Management and Situation Awareness. Ming-Hsiang Tsou, Chin-Te Jung, Christopher Allen, Jiue-An Yang, Su Yeon Han, Brian H. Spitzberg et al.
- The Academic SDI—Towards Understanding Spatial Data Infrastructures for Research and Education. Serena Coetzee, Stefan Steiniger, Barend Köbben, Adam Iwaniak, Iwona Kaczmarek, Petr Rapant et al.
Part 3 : Map Design
- Introducing Leader Lines into Scale-Aware Consistent Labeling. Hsiang-Yun Wu, Shigeo Takahashi, Sheung-Hung Poon, Masatoshi Arikawa
- On the Way to Create Individualized Cartographic Images for Online Maps Using Free and Open Source Tools. Csaba Szigeti, Gáspár Albert, Virág Ilyés, Dávid Kis, Dávid Várkonyi
- Hebrus Valles—The Mars Exploration Zone Map. Mateusz Pitura
- XY Domain: A Sound Map Artwork for Communicating Big Data Characteristics. Antoni B. Moore, Charlotte Parallel
- Reproducible Cartography. Timothée Giraud, Nicolas Lambert
Part 4 : Evaluating Map Quality
- Effectiveness and Efficiency of Using Different Types of Rectangular Treemap as Diagrams in Cartography. Mengjie Zhou, Yan Cheng, Ning Ye, Jing Tian
- The Usability of a GeoVisual Analytics Environment for the Exploration and Analysis of Different Datasets. Irma Kveladze, Menno-Jan Kraak, Corné P. J. M. van Elzakker
- Characterizing Maps from Visual Properties. Catherine Dominguès, Laurence Jolivet
- How Hard Is It to Design Maps for Beginners, Intermediates and Experts? Gáspár Albert, Virág Ilyés, Csaba Szigeti, Dávid Kis, Dávid Várkonyi
- Interaction Problems Found Through Usability Testing on Interactive Maps. Elaine Gomes Vieira de Jesus, Patricia Lustosa Brito, Vivian de Oliveira Fernandes
- The Apprehension of Overlaid Information in a Web Map. Dzenan Dumpor, Terje Midtbø
- Visualization of Environment-related Information in Augmented Reality: Analysis of User Needs. Kateřina Chmelařová, Čeněk Šašinka, Zdeněk Stachoň
Part 5 : Geographic Analysis
- Analysis and Visualization of the Urban Residents’ Income-Related Happiness Index in China. Ying Song, Yang Yu, Yanfang Liu, Zixi Liu, Qianyi Li, Guoguang Xu
- Displaying Voter Gains and Losses: Local Government Elections in South Africa for 2011 and 2016. Peter M. U. Schmitz
- Mapping Community Vulnerability to Poaching: A Whole-of-Society Approach. Peter M. U. Schmitz, Duarte Gonçalves, Merin Jacobs
- Mapping Urban Landscapes Along Streets Using Google Street View. Xiaojiang Li, Carlo Ratti, Ian Seiferling
Part 6 : Numerical Analysis
- Cross-Scale Analysis of Sub-pixel Variations in Digital Elevation Models. Mehran Ghandehari, Barbara P. Buttenfield, Carson J. Q. Farmer
- Extraction of Ridge Lines from Grid DEMs with the Steepest Ascent Method Based on Constrained Direction. Wenping Jiang, Daping Xi, Xiaolong Deng, Lina Huang, Shen Ying
- Using the A⋆ Algorithm to Find Optimal Sequences for Area Aggregation. Dongliang Peng, Alexander Wolff, Jan-Henrik Haunert
- Quantitative Expressions of Spatial Similarity in Multi-scale Map Spaces. Haowen Yan, Liming Zhang, Zhonghui Wang, Weifang Yang, Tao Liu, Liang Zhou
- Balanced Allocation of Multi-criteria Geographic Areas by a Genetic Algorithm. Shahin Sharifi Noorian, Christian E. Murphy
- Rethinking the Buffering Approach for Assessing OpenStreetMap Positional Accuracy. Qi Zhou
- Data Classification for Highlighting Polygons with Local Extreme Values in Choropleth Maps. Jochen Schiewe
Part 7 : Routing
- A Confidence-Based Approach for the Assessment of Accessibility of Pedestrian Network for Manual Wheelchair Users. Amin Gharebaghi, Mir-Abolfazl Mostafavi, Geoffrey Edwards, Patrick Fougeyrollas, Patrick Morales-Coayla, François Routhier et al.
- Accessibility in Pedestrian Routing. Megen Brittell, Christine Grummon, Amy Lobben, Masrudy Omri, Nicholas Perdue
- Visualization of Traffic Bottlenecks: Combining Traffic Congestion with Complicated Crossings. Andreas Keler, Jukka M. Krisp, Linfang Ding
- Psychogeography in the Age of the Quantified Self—Mental Map Modelling with Georeferenced Personal Activity Data. Sebastian Meier, Katrin Glinka
Part 8 : Final Reflections
- In Search of the Essence of Cartography. Marek Baranowski, Dariusz Gotlib, Robert OlszewskiNuméro de notice : 19871 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Actes En ligne : https://doi.org/10.1007/978-3-319-57336-6 Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=86071 ContientRéservation
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Code-barres Cote Support Localisation Section Disponibilité 19871-02 CG2017 Livre Centre de documentation Congrès Disponible 19871-01 K325 Livre LASTIG Dépôt en unité Exclu du prêt Understanding the bias of call detail records in human mobility research / Ziliang Zhao in International journal of geographical information science IJGIS, vol 30 n° 9-10 (September - October 2016)
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Titre : Understanding the bias of call detail records in human mobility research Type de document : Article/Communication Auteurs : Ziliang Zhao, Auteur ; Shih-Lung Shaw, Auteur ; Yang Xu, Auteur ; et al., Auteur Année de publication : 2016 Article en page(s) : pp 1738 - 1762 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Analyse spatiale
[Termes IGN] Chine
[Termes IGN] contenu généré par les utilisateurs
[Termes IGN] données massives
[Termes IGN] erreur systématique
[Termes IGN] mobilité humaine
[Termes IGN] navigation pédestre
[Termes IGN] statistiques d'appels détaillés
[Termes IGN] téléphonie mobileRésumé : (Auteur) In recent years, call detail records (CDRs) have been widely used in human mobility research. Although CDRs are originally collected for billing purposes, the vast amount of digital footprints generated by calling and texting activities provide useful insights into population movement. However, can we fully trust CDRs given the uneven distribution of people’s phone communication activities in space and time? In this article, we investigate this issue using a mobile phone location dataset collected from over one million subscribers in Shanghai, China. It includes CDRs (~27%) plus other cellphone-related logs (e.g., tower pings, cellular handovers) generated in a workday. We extract all CDRs into a separate dataset in order to compare human mobility patterns derived from CDRs vs. from the complete dataset. From an individual perspective, the effectiveness of CDRs in estimating three frequently used mobility indicators is evaluated. We find that CDRs tend to underestimate the total travel distance and the movement entropy, while they can provide a good estimate to the radius of gyration. In addition, we observe that the level of deviation is related to the ratio of CDRs in an individual’s trajectory. From a collective perspective, we compare the outcomes of these two datasets in terms of the distance decay effect and urban community detection. The major differences are closely related to the habit of mobile phone usage in space and time. We believe that the event-triggered nature of CDRs does introduce a certain degree of bias in human mobility research and we suggest that researchers use caution to interpret results derived from CDR data. Numéro de notice : A2016-567 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/SOCIETE NUMERIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/13658816.2015.1137298 En ligne : http://dx.doi.org/10.1080/13658816.2015.1137298 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=81710
in International journal of geographical information science IJGIS > vol 30 n° 9-10 (September - October 2016) . - pp 1738 - 1762[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 079-2016051 RAB Revue Centre de documentation En réserve L003 Disponible Integrating indoor and outdoor spaces for pedestrian navigation guidance: A review / Ann Vanclooster in Transactions in GIS, vol 20 n° 4 (August 2016)PermalinkOvercoming challenges in developing more usable pedestrian navigation systems / Ioannis Delikostidis in Cartography and Geographic Information Science, Vol 43 n° 3 (June 2016)PermalinkCartographie et déficience visuelle / Françoise de Blomac in DécryptaGéo le mag, n° 175 (mars 2016)PermalinkCouplage de mesures GNSS et inertielles pour de la navigation pédestre dans les bâtiments / Sylvain Chable in XYZ, n° 146 (mars - mai 2016)PermalinkPermalinkThe impact of planning on pedestrian movement: contrasting pedestrian movement models in pre-modern and modern neighborhoods in Israel / Itzhak Omer in International journal of geographical information science IJGIS, vol 29 n° 12 (December 2015)PermalinkModéliser la marche urbaine et les relations environnement-usagers dans un SIG : Application à la ville de Luxembourg / Nadja Victor in Revue internationale de géomatique, vol 25 n° 4 (octobre - décembre 2015)PermalinkStreet smart: 3-D city mapping and modeling for positioning with multi-GNSS / Li-Ta Hsu in GPS world, vol 26 n° 7 (July 2015)PermalinkA la recherche du point bleu / Françoise de Blomac in DécryptaGéo le mag, n° 168 (juin 2015)PermalinkPermalinkModeling use of space from social media data using a biased random walker / Steven D. Prager in Transactions in GIS, vol 18 n° 6 (December 2014)PermalinkUsage de la morphométrie dans la révélation des préférences de mobilité. Application aux cheminements piétons / Arnaud Piombini in Revue internationale de géomatique, vol 24 n° 1 (mars – mai 2014)PermalinkPedestrian navigation services: Challenges and current trends / Hassan A. Karimi in Geomatica, vol 67 n° 4 (December 2013)PermalinkGetting closer to everywhere: accurately tracking smartphones indoors / Ramsey Faragher in GPS world, vol 24 n° 10 (October 2013)PermalinkUrban network analysis: Centrality, sinuosity and shortcut detection / Theophile Emmanouilidis in Revue internationale de géomatique, vol 23 n° 3 - 4 (septembre 2013 - février 2014)PermalinkAn information model for pedestrian routing and navigation databases supporting universal accessibility / Mari Laasko in Cartographica, vol 48 n° 2 (June 2013)PermalinkCrowdsourcing techniques for augmenting traditional accessibility maps with transitory obstacle information / Matthew T. Rice in Cartography and Geographic Information Science, vol 40 n° 3 (June 2013)PermalinkLocation-based illustration mapping applications and editing tools / Min Lu in Cartographica, vol 48 n° 2 (June 2013)PermalinkMap design aspects, route complexity, or social background? Factors influencing user satisfaction with indoor navigation maps / Alexandra Lorenz in Cartography and Geographic Information Science, vol 40 n° 3 (June 2013)PermalinkSpatial knowledge acquisition with mobile maps, augmented reality and voice in the context of GPS-based pedestrian navigation: results from a field test / H. Huang in Cartography and Geographic Information Science, vol 39 n° 2 (April 2012)Permalink