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Detection of unregistered buildings for updating 2D databases / European Spatial Data Research EuroSDR (2009)
Titre : Detection of unregistered buildings for updating 2D databases Autre titre : New platforms Type de document : Rapport Auteurs : European Spatial Data Research EuroSDR, Auteur Editeur : Dublin : European Spatial Data Research EuroSDR Année de publication : 2009 Collection : EuroSDR official publication, ISSN 0257-0505 num. 56 Importance : 100 p. Format : 21 x 30 cm ISBN/ISSN/EAN : 978-90-5179-694-0 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Télédétection
[Termes IGN] acquisition de données
[Termes IGN] analyse d'image numérique
[Termes IGN] base de données vectorielles
[Termes IGN] détection du bâti
[Termes IGN] données localisées 2D
[Termes IGN] mise à jour de base de données
[Termes IGN] photogrammétrie aérienneRésumé : (Auteur) 1- In the past few years, the production of 2D topographic databases has been completed in most industrialised countries. Presently, most efforts in the National Mapping and Cadastral Agencies (NMCAs) are devoted to the update of such databases. Because the update process is generally carried out manually by visual inspection of orthophotos, it is time-consuming and expensive. The development of semi-automatic systems is, thus, of high interest for NMCAs. The current deficits in automation and the lack of expertise within NMCAs have driven the EuroSDR (European Spatial Data Research) to launch a project in this topic. The aim of the project "Detection of unregistered buildings for updating 2D databases" is to evaluate the feasibility of semi-automatically detecting changes in a 2D building vector database from optical imagery or LIDAR. Three specific sub-topics are investigated in detail: firstly, the impact of methodology; secondly, the impact of the type and spatial resolution of input data; lastly, the impact of the complexity of the scene, especially with respect to topography and land use. A comparison of algorithms representative of the current state-of-the-art in the field of change detection is performed. In this report, we describe the three test areas used in the project, the methodology used for assessing and comparing the methods, and the results that have been obtained with the four different approaches. The results are thoroughly analysed and a discussion enables to bring out conclusions and promising directions to follow for building an optimal operational system in the future. 2- This final report of the EuroSDR project "NEWPLATFORMS" gives an overview of a very promising new class of platforms for remote sensing, unmanned aircraft systems or UAS. Although unmanned aircraft have been around for many years, they are now becoming available for scientific and civil use, as low-altitude systems that provide an "eye in the sky" for small photogrammetry projects (the size of a construction site), and for the development of new remote sensing applications. First, the concept of an UAS is described. It is not just about the aircraft, but also about its ground control system (which gives the remote pilot the ability to control the aircraft). Two ways of classification are given, one more descriptive (based on physical properties such as total mass, range, endurance, etc.), and one based on the flight clearance potential. The latter is important, since there is a total lack of coherent regulations across Europe. A summary of the regulatory authorities is presented in chapter 2. The report concludes with a review of the (potential) applications in remote sensing that can be conducted with UAS. Numéro de notice : 15521 Affiliation des auteurs : IGN (1940-2011) Thématique : IMAGERIE Nature : Rapport d'étude technique En ligne : http://www.eurosdr.net/publications Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=62750 ContientRéservation
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Code-barres Cote Support Localisation Section Disponibilité 15521-01 35.46 Livre Centre de documentation Télédétection Disponible Documents numériques
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Detection of unregistered buildings ... - pdf auteurAdobe Acrobat PDF
Titre : Digital camera calibration Type de document : Rapport Auteurs : Michael Cramer, Auteur Editeur : Dublin : European Spatial Data Research EuroSDR Année de publication : July 2009 Collection : EuroSDR official publication, ISSN 0257-0505 num. 55 Importance : 257 p. Format : 21 x 30 cm Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s)
[Termes IGN] caméra numérique
[Termes IGN] chambre métrique
[Termes IGN] étalonnage de chambre métrique
[Termes IGN] étalonnage géométriqueIndex. décimale : 35.10 Acquisition d'images Numéro de notice : 21792 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Rapport d'étude technique En ligne : http://www.eurosdr.net/sites/default/files/uploaded_files/eurosdr_publication_nd [...] Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=75583 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 21792-01 35.10 Livre Centre de documentation Télédétection Disponible
Titre : EuroSDR ISPRS project, commission 2 tree extraction: final report Type de document : Rapport Auteurs : Harri Kaartinen, Auteur ; Juha Hyyppä, Auteur ; European Spatial Data Research EuroSDR, Auteur Editeur : Dublin : European Spatial Data Research EuroSDR Année de publication : 2008 Collection : EuroSDR official publication, ISSN 0257-0505 num. 53 Importance : 60 p. Format : 21 x 30 cm ISBN/ISSN/EAN : 978-90-5179-598-X Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image
[Termes IGN] analyse comparative
[Termes IGN] arbre (flore)
[Termes IGN] canopée
[Termes IGN] données lidar
[Termes IGN] étude de faisabilité
[Termes IGN] extraction automatique
[Termes IGN] extraction du sursol
[Termes IGN] extraction semi-automatique
[Termes IGN] forêt
[Termes IGN] hauteur des arbres
[Termes IGN] image aérienne
[Termes IGN] lasergrammétrie
[Termes IGN] qualité des donnéesIndex. décimale : 35.20 Traitement d'image Résumé : (Auteur) The objective of the EuroSDR/ISPRS Tree Extraction project was to evaluate the quality, accuracy, and feasibility of automatic or semi-automatic tree extraction methods based on high-density laser scanner data and digital image data. Data sets from two test sites were delivered to the twelve participants of the project. For each test site the following data were available and could be downloaded from the FGI ftp-site: aerial images, camera calibration and image orientation information, ground control point coordinates and jpg-images of point locations, laser scanner data with three different pulse densities, digital terrain model and a training data set. In this report the test sites used, data sets and the reference data are described. The tree extraction methods used by the participants and methods used in accuracy evaluation are explained in this report. The produced tree models are depicted and analysed with respect to tree location, tree height, crown base height and crown delineation accuracy. Finally, a discussion and conclusions chapter summarise the results of the project. Surprisingly, results show that the extraction method is the main factor on the achieved accuracy. When the laser point density increases from two points to eight points per m2, the improvement in crown base height and crown delineation accuracy is marginal but in the case of some methods the accuracy of the tree location and especially the tree height determination improves. The low number of hybrid models based on both the laser data and aerial image produced by the partners implies that integration of laser and aerial image is in its early stages. Numéro de notice : 15391 Affiliation des auteurs : non IGN Thématique : FORET/IMAGERIE Nature : Rapport En ligne : http://www.eurosdr.net/sites/default/files/uploaded_files/eurosdr_publication_nd [...] Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=40674 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 15391-01 35.20 Livre Centre de documentation Télédétection Disponible EuroSDR & ISPRS Workshop Geosensor Networks, February 20 - 22 2008, Hannover Germany / Christian Heipke (2008)
Titre : EuroSDR & ISPRS Workshop Geosensor Networks, February 20 - 22 2008, Hannover Germany Type de document : Actes de congrès Auteurs : Christian Heipke, Éditeur scientifique ; Monika Sester, Éditeur scientifique Editeur : Dublin : European Spatial Data Research EuroSDR Année de publication : 2008 Collection : EuroSDR official publication, ISSN 0257-0505 num. 54 Conférence : EuroSDR & ISPRS 2008, Workshop Geosensor Network 20/02/2008 22/02/2008 Hanovre Allemagne OA proceedings Format : 21 x 30 cm Note générale : bibliographie
Les pdf sont des interventions sont accessibles dans la page Programme and PresentationsLangues : Anglais (eng) Descripteur : [Vedettes matières IGN] Infrastructure de données
[Termes IGN] acquisition d'images
[Termes IGN] acquisition de données
[Termes IGN] capteur aérien
[Termes IGN] capteur spatial
[Termes IGN] données géodésiques
[Termes IGN] interopérabilité
[Termes IGN] orientation du capteur
[Termes IGN] réseau de capteurs
[Termes IGN] Sensor Web Enablement
[Termes IGN] traitement de donnéesRésumé : (auteur) Geosensor Networks have received strong interest in recent years. The basic principle is that a large number of potentially simple sensors can achieve a global perception of environment using their individual sensing facilities together with communication and cooperation. This topic deals with inherently spatial aspects like positioning and sensing the local environment, however, it also includes aspects of data communication and data processing. Thus, different communities are dealing with this topic from different perspectives. This single-track, focussed workshop concentrated on recent developments and future directions of Geosensor Networks which relate both to geodetic and non-geodetic applications. The workshop brought together researchers, technology developers and users of the different involved disciplines and thus provided a forum for fruitful discussions. Note de contenu : Workshop Information
Report
Programme and Presentations
Organising Committee
Participants
Workshop PhotosNuméro de notice : 25395 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Actes DOI : sans En ligne : http://www.eurosdr.net/publications/official-publication-no-54-2008 Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=93680
Titre : EuroSDR workshops and projects : The final report on the EuroSDR CityGML Project, the Proceedings of the 'Production Partnership Management' and the 'international calibration and orientation workshop' EUROCOW [janvier] 2008 and the 'Geosensor networks workshop' [février 2008] Type de document : Actes de congrès Auteurs : European Spatial Data Research EuroSDR, Auteur Editeur : Dublin : European Spatial Data Research EuroSDR Année de publication : 2008 Collection : EuroSDR official publication, ISSN 0257-0505 num. 54 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s)
[Termes IGN] chambre à grand format
[Termes IGN] étalonnage de capteur (imagerie)
[Termes IGN] géoréférencement
[Termes IGN] orientation du capteur
[Termes IGN] réalité virtuelle
[Termes IGN] signal GalileoNote de contenu : - Production Partnership Management Workshop / Editors: Ray Patrucco and Keith Murray
- International Calibration and Orientation Workshop EuroCOW 2008 / Editors: Ismael Colomina and Eva Hernández
- Geosensor Networks Workshop / Editors: Christian Heipke and Monika Sester
- Final Report on the EuroSDR CityGML Project / Editor: Thomas H. KolbeNuméro de notice : 17836 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Actes En ligne : http://bono.hostireland.com/~eurosdr/km_pub/no54/index.htm Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=64126 Contient
- Final report on the EuroSDR CityGML Project / Thomas H. Kolbe (2008)
- International Calibration and Orientation Workshop, EuroCOW 2008, 30 janvier - 1er février 2008, Castelldefels, Espagne / Ismael Colomina (2008)
- Workshop on production partnership management, Ordnance Survey, Southampton, 7-9 November 2007, England / Ray Patrucco (2008)
- EuroSDR & ISPRS Workshop Geosensor Networks, February 20 - 22 2008, Hannover Germany / Christian Heipke (2008)
PermalinkInternational Calibration and Orientation Workshop, EuroCOW 2008, 30 janvier - 1er février 2008, Castelldefels, Espagne / Ismael Colomina (2008)PermalinkWorkshop on production partnership management, Ordnance Survey, Southampton, 7-9 November 2007, England / Ray Patrucco (2008)PermalinkReliability of direct georeferencing: An overview of the current approaches and possibilities / Jan Skaloud (2006)PermalinkReliability of direct georeferencing: A case study on practical problems and solutions / Klaus Legat (2006)PermalinkPermalinkPermalink
peer-reviewed publications