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Software comparison for underwater archaeological photogrammetric applications / Marinos Vlachos (2019)
Titre : Software comparison for underwater archaeological photogrammetric applications Type de document : Article/Communication Auteurs : Marinos Vlachos, Auteur ; Louise Berger, Auteur ; Rose Mathelier, Auteur ; P. Agrafiotis, Auteur ; Dimitrios Skarlatos, Auteur Editeur : International Society for Photogrammetry and Remote Sensing ISPRS Année de publication : 2019 Collection : International Archives of Photogrammetry, Remote Sensing and Spatial Information Sciences, ISSN 1682-1750 num. 42-2/W15 Projets : 3-projet - voir note / Conférence : CIPA 2019, 27th CIPA International Symposium, Documenting the past for a better future 01/09/2019 05/09/2019 Ávila Espagne OA ISPRS Archives Importance : 7 p. Note générale : bibliographie
The contribution of M. Vlachos, P. Agrafiotis and D. Skarlatos is part of iMARECULTURE project (Advanced VR, iMmersive Serious Games and Augmented REality as Tools to Raise Awareness and Access to European Underwater CULTURal heritagE, Digital Heritage) that has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 727153.Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Photogrammétrie numérique
[Termes IGN] analyse comparative
[Termes IGN] données localisées 3D
[Termes IGN] logiciel de photogrammétrie
[Termes IGN] scène sous-marine
[Termes IGN] semis de points
[Termes IGN] structure-from-motionRésumé : (auteur) This paper presents an investigation as to whether and how the selection of the SfM-MVS software affects the 3D reconstruction of submerged archaeological sites. Specifically, Agisoft Photoscan, VisualSFM, SURE, 3D Zephyr and Reality Capture software were used and evaluated according to their performance in 3D reconstruction using specific metrics over the reconstructed underwater scenes. It must be clarified that the scope of this study is not to evaluate specific algorithms or steps that the various software use, but to evaluate the final results and specifically the generated 3D point clouds. To address the above research issues, a dataset from the ancient shipwreck, laying at 45 meters below sea level, is used. The dataset is composed of 19 images having very small camera to object distance (1 meter), and 42 images with higher camera to object distance (3 meters) images. Using a common bundle adjustment for all 61 images, a reference point cloud resulted from the lower dataset is used to compare it with the point clouds of the higher dataset generated using the different photogrammetric packages. Following that, a comparison regarding the number of total points, cloud to cloud distances, surface roughness, surface density and a combined 3D metric was done to evaluate and see which one performed the best. Numéro de notice : C2019-074 Affiliation des auteurs : ENSG+Ext (2012-2019) Thématique : IMAGERIE Nature : Communication nature-HAL : ComAvecCL&ActesPubliésIntl DOI : 10.5194/isprs-archives-XLII-2-W15-1195-2019 Date de publication en ligne : 26/08/2019 En ligne : https://doi.org/10.5194/isprs-archives-XLII-2-W15-1195-2019 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=99700 Spatial data management in apache spark: the GeoSpark perspective and beyond / Jia Yu in Geoinformatica, vol 23 n° 1 (January 2019)
[article]
Titre : Spatial data management in apache spark: the GeoSpark perspective and beyond Type de document : Article/Communication Auteurs : Jia Yu, Auteur ; Zongsi Zhang, Auteur ; Mohamed Sarwat, Auteur Année de publication : 2019 Article en page(s) : pp 37 - 78 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Bases de données localisées
[Termes IGN] analyse comparative
[Termes IGN] Apache (serveur)
[Termes IGN] arbre k-d
[Termes IGN] arbre quadratique
[Termes IGN] arbre-R
[Termes IGN] données massives
[Termes IGN] Hadoop
[Termes IGN] index spatial
[Termes IGN] performance
[Termes IGN] Spark
[Termes IGN] traitement répartiRésumé : (auteur) The paper presents the details of designing and developing GeoSpark, which extends the core engine of Apache Spark and SparkSQL to support spatial data types, indexes, and geometrical operations at scale. The paper also gives a detailed analysis of the technical challenges and opportunities of extending Apache Spark to support state-of-the-art spatial data partitioning techniques: uniform grid, R-tree, Quad-Tree, and KDB-Tree. The paper also shows how building local spatial indexes, e.g., R-Tree or Quad-Tree, on each Spark data partition can speed up the local computation and hence decrease the overall runtime of the spatial analytics program. Furthermore, the paper introduces a comprehensive experiment analysis that surveys and experimentally evaluates the performance of running de-facto spatial operations like spatial range, spatial K-Nearest Neighbors (KNN), and spatial join queries in the Apache Spark ecosystem. Extensive experiments on real spatial datasets show that GeoSpark achieves up to two orders of magnitude faster run time performance than existing Hadoop-based systems and up to an order of magnitude faster performance than Spark-based systems. Numéro de notice : A2019-225 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1007/s10707-018-0330-9 Date de publication en ligne : 22/10/2018 En ligne : http://dx.doi.org/10.1007/s10707-018-0330-9 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=92621
in Geoinformatica > vol 23 n° 1 (January 2019) . - pp 37 - 78[article]A spatiotemporal calculus for reasoning about land-use trajectories / Adeline Marinho Maciel in International journal of geographical information science IJGIS, Vol 33 n° 1-2 (January - February 2019)
[article]
Titre : A spatiotemporal calculus for reasoning about land-use trajectories Type de document : Article/Communication Auteurs : Adeline Marinho Maciel, Auteur ; Gilberto Camara, Auteur ; Lubia Vinhas, Auteur ; et al., Auteur Année de publication : 2019 Article en page(s) : pp 176 - 192 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Analyse spatiale
[Termes IGN] Amazonie
[Termes IGN] analyse diachronique
[Termes IGN] analyse spatio-temporelle
[Termes IGN] changement d'occupation du sol
[Termes IGN] conversion
[Termes IGN] déboisement
[Termes IGN] détection de changement
[Termes IGN] données maillées
[Termes IGN] image Terra-MODIS
[Termes IGN] Mato Grosso
[Termes IGN] observation de la Terre
[Termes IGN] R (langage)
[Termes IGN] raisonnement spatiotemporel
[Termes IGN] Relation d'Allen
[Termes IGN] surveillance de la végétation
[Termes IGN] temps instantané
[Termes IGN] trace au solRésumé : (auteur) Earth observation images are a powerful source of data about changes in our planet. Given the magnitude of global environmental changes taking place, it is important that Earth Science researchers have access to spatiotemporal reasoning tools. One area of particular interest is land-use change. Using data obtained from images, researchers would like to express abstractions such as ‘land abandonment’, ‘forest regrowth’, and ‘agricultural intensification’. These abstractions are specific types of land-use trajectories, defined as multi-year paths from one land cover into another. Given this need, this paper introduces a spatiotemporal calculus for reasoning about land-use trajectories. Using Allen’s interval logic as a basis, we introduce new predicates that express cases of recurrence, conversion and evolution in land-use change. The proposed predicates are sufficient and necessary to express different kinds of land-use trajectories. Users can build expressions that describe how humans modify Earth’s terrestrial surface. In this way, scientists can better understand the environmental and economic effects of land-use change. Numéro de notice : A2019-020 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/13658816.2018.1520235 Date de publication en ligne : 26/09/2018 En ligne : https://doi.org/10.1080/13658816.2018.1520235 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=91685
in International journal of geographical information science IJGIS > Vol 33 n° 1-2 (January - February 2019) . - pp 176 - 192[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 079-2019011 RAB Revue Centre de documentation En réserve L003 Disponible Les systèmes d'information géographique / Christina Aschan-Leygonie (2019)
Titre : Les systèmes d'information géographique : principes, concepts et méthodes Type de document : Guide/Manuel Auteurs : Christina Aschan-Leygonie, Auteur ; Claire Cunty, Auteur ; Paule-Annick Davoine, Auteur Editeur : Paris : Armand Colin Année de publication : 2019 Collection : Cursus Importance : 267 p. Format : 15 x 21 cm ISBN/ISSN/EAN : 978-2-200-61718-9 Note générale : Bibliographie Langues : Français (fre) Descripteur : [Vedettes matières IGN] Systèmes d'information géographique
[Termes IGN] analyse multicritère
[Termes IGN] analyse spatiale
[Termes IGN] autocorrélation spatiale
[Termes IGN] base de données localisées
[Termes IGN] base de données relationnelles
[Termes IGN] conversion de données
[Termes IGN] document cartographique
[Termes IGN] données localisées 3D
[Termes IGN] données maillées
[Termes IGN] données vectorielles
[Termes IGN] intégration de données
[Termes IGN] interopérabilité
[Termes IGN] interpolation spatiale
[Termes IGN] jeu de données localisées
[Termes IGN] métadonnées géographiques
[Termes IGN] modèle numérique
[Termes IGN] réalité de terrain
[Termes IGN] stockage de données
[Termes IGN] système d'information géographique
[Termes IGN] visualisation de donnéesIndex. décimale : 37.30 Systèmes d'information géographique Résumé : (Editeur) Cet ouvrage apporte aux étudiants les notions clés et méthodes indispensables à la maîtrise des systèmes d'information géographique (SIG). Il présente les fondamentaux de l'information géographique, les traitements et les analyses qui sont au coeur des projets SIG. Il montre comment les SIG peuvent répondre à des problématiques spatiales portant aussi bien sur des phénomènes géographiques discrets ou continus que sociaux ou environnementaux. Un véritable outil pédagogique, illustré par de multiples exemples, une centaine de figures, des focus thématiques, des conseils, des définitions et des questions de révision. Note de contenu : 1. De la "réalité" du terrain à l'information géographique dans les SIG
2. Fondamentaux de l'information géographique
3. Intégration de données géographiques dans les SIG
4. Visualisation, interrogation et enrichissement de l'information géographique
5. Traitements spatiaux de l'information géographique
6. Aperçu de l'analyse spatiale avec les SIGNuméro de notice : 26795 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Manuel Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=100028 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 26795-01 37.30 Livre Centre de documentation Géomatique Disponible
Titre : The digital transformation of labor : Automation, the gig economy and welfare Type de document : Monographie Auteurs : Anthony Larsson, Auteur Editeur : Londres : Routledge Année de publication : 2019 Importance : 366 p. Format : 16 x 24 cm Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Entreprise
[Termes IGN] automatisation
[Termes IGN] conditions de travail
[Termes IGN] données numériques
[Termes IGN] marché du travail
[Termes IGN] organisation du travail
[Termes IGN] support numérique
[Termes IGN] technologies de l'information et de la communicationRésumé : (éditeur) Through a series of studies, the overarching aim of this book is to investigate if and how the digitalization/digital transformation process causes (or may cause) the autonomy of various labor functions, and its impact in creating (or stymieing) various job opportunities on the labor market. This book also seeks to illuminate what actors/groups are mostly benefited by the digitalization/digital transformation and which actors/groups that are put at risk by it. This book takes its point of departure from a 2016 OECD report that contends that the impact digitalization has on the future of labor is ambiguous, as on the one hand it is suggested that technological change is labor-saving, but on the other hand, it is suggested that digital technologies have not created new jobs on a scale that it replaces old jobs. Another 2018 OECD report indicated that digitalization and automation as such does not pose a real risk of destroying any significant number of jobs for the foreseeable future, although tasks would by and large change significantly. This would affects welfare, as most of its revenue stems from taxation, and particularly so from the taxation on labor (directly or indirectly). For this reason, this book will set out to explore how the future technological and societal advancements impact labor conditions. The book seeks to provide an innovative, enriching and controversial take on how various aspects of the labor market can be (and are) affected the ongoing digitalization trend in a way that is not covered by extant literature. As such, this book intends to cater to a wider readership, from a general audience and students, to specialized professionals and academics wanting to gain a deeper understanding of the possible future developments of the labor market in light of an accelerating digitalization/digital transformation of society at large. Note de contenu : I- Practical utilization of new technologies
II- The role of the digital welfare state
III- Digital disruption of status quo
IV- ConclusionNuméro de notice : 25856 Affiliation des auteurs : non IGN Thématique : SOCIETE NUMERIQUE Nature : Monographie En ligne : https://www.taylorfrancis.com/books/e/9780429317866 Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=95475 PermalinkAutomatic cloud resource management for interactive remote geovisualization / Tong Zhang in Transactions in GIS, vol 22 n° 6 (December 2018)PermalinkGénération d'observations pour la validation ou la comparaison de logiciels d'ajustement de mesures par moindres carrés / Stéphane Durand in XYZ, n° 157 (décembre 2018 - février 2019)PermalinkLand parcel management system in Poland and a case study of EU member states / Agnieszka Trystuła in Geodetski vestnik, vol 62 n° 4 (December 2018 - February 2019)PermalinkPoint clouds by SLAM-based mobile mapping systems: accuracy and geometric content validation in multisensor survey and stand-alone acquisition / Giulia Sammartano in Applied geomatics, vol 10 n° 4 (December 2018)PermalinkPotential of Sentinel-1 data for monitoring temperate mixed forest phenology / Pierre-Louis Frison in Remote sensing, vol 10 n° 12 (December 2018)PermalinkRobust vehicle detection in aerial images using bag-of-words and orientation aware scanning / Hailing Zhou in IEEE Transactions on geoscience and remote sensing, vol 56 n° 12 (December 2018)PermalinkTowards operational marker-free registration of terrestrial lidar data in forests / Jean-François Tremblay in ISPRS Journal of photogrammetry and remote sensing, vol 146 (December 2018)PermalinkWood density reduced while wood volume growth accelerated in Central European forests since 1870 / Hans Pretzsch in Forest ecology and management, vol 429 (1 December 2018)PermalinkComparing historical and contemporary maps : a methodological framework for a cartographic map comparison applied to Swiss maps / Christin Loran in International journal of geographical information science IJGIS, vol 32 n° 11-12 (November - December 2018)PermalinkDepth-based hand pose estimation : Methods, data, and challenges / James Steven Supančič in International journal of computer vision, vol 126 n° 11 (November 2018)PermalinkGIS analysis of the trafficability determined by slope in the eastern Tyrol front (WWI, Eastern Alps) : a military history reading / Mauricio Nicolas Vergara in Cartography and Geographic Information Science, Vol 45 n° 6 (November 2018)PermalinkGlobal IWV trends and variability in atmospheric reanalyses and GPS observations / Ana-Claudia Bernardes Parracho in Atmospheric chemistry and physics, vol 18 n° 22 ([01/11/2018])PermalinkHistoric reconstruction of reservoir topography using contour line interpolation and structure from motion photogrammetry / Ana Casado in International journal of geographical information science IJGIS, vol 32 n° 11-12 (November - December 2018)PermalinkEvaluation of three ionospheric delay computation methods for ground-based GNSS receivers / Liang Chen in GPS solutions, vol 22 n° 4 (October 2018)PermalinkHow to calibrate historical aerial photographs : a change analysis of naturally dynamic boreal forest landscapes / Niko Kulha in Forests, vol 9 n° 10 (October 2018)PermalinkNRand‐K : Minimizing the impact of location obfuscation in spatial analysis / Mayra Zurbaran in Transactions in GIS, vol 22 n° 5 (October 2018)PermalinkStudy the precision of creating 3D structure modeling from terrestrial laser scanner observations / Zaki M. 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