Descripteur
Documents disponibles dans cette catégorie (2127)
Ajouter le résultat dans votre panier
Visionner les documents numériques
Affiner la recherche Interroger des sources externes
Etendre la recherche sur niveau(x) vers le bas
Geometric validation of a ground-based mobile laser scanning system / D. Barber in ISPRS Journal of photogrammetry and remote sensing, vol 63 n° 1 (January - February 2008)
[article]
Titre : Geometric validation of a ground-based mobile laser scanning system Type de document : Article/Communication Auteurs : D. Barber, Auteur ; Jon Mills, Auteur ; S. Smith-Voysey, Auteur Année de publication : 2008 Article en page(s) : pp 128 - 141 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Topographie
[Termes IGN] données laser
[Termes IGN] données localisées 3D
[Termes IGN] lasergrammétrie
[Termes IGN] lever topographique
[Termes IGN] milieu urbain
[Termes IGN] outil d'aide à la décision
[Termes IGN] précision des données
[Termes IGN] semis de points
[Termes IGN] système de numérisation mobile
[Termes IGN] validité des donnéesRésumé : (Auteur) This paper outlines a study, carried out on behalf of a national mapping agency, to validate laser scanned point cloud data collected by a ground-based mobile mapping system. As the need for detailed three-dimensional data about our environment continues to grow, ground-based mobile systems are likely to find an increasingly important niche in national mapping agency applications. For example, such systems potentially provide the most efficient data capture for numerical modelling and/or visualisation in support of decision making, filling a void between static terrestrial and mobile airborne laser scanning. This study sought to assess the precision and accuracy of data collected using the StreetMapper system across two test sites: a peri-urban residential housing estate with low density housing and wide streets, and a former industrial area consisting of narrow streets and tall warehouses. An estimate of system precision in both test sites was made using repeated data collection passes, indicating a measurement precision (95%) of between 0.029 m and 0.031 m had been achieved in elevation. Elevation measurement accuracy was assessed against check points collected using conventional surveying techniques at the same time as the laser scanning survey, finding RMS errors in elevation in the order of 0.03 m. Planimetric accuracy was also assessed, with results indicating an accuracy of approximately 0.10 m, although difficulties in reliably assessing planimetric accuracy were encountered. The results of this validation were compared against a theoretical error pre-analysis which was also used to show the relative components of error within the system. Finally, recommendations for future validation methodologies are outlined and possible applications of the system are briefly discussed. Copyright ISPRS Numéro de notice : A2008-041 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.isprsjprs.2007.07.005 En ligne : https://doi.org/10.1016/j.isprsjprs.2007.07.005 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29036
in ISPRS Journal of photogrammetry and remote sensing > vol 63 n° 1 (January - February 2008) . - pp 128 - 141[article]Réservation
Réserver ce documentExemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 081-08011 SL Revue Centre de documentation Revues en salle Disponible Géoportail, le portail internet des territoires et des citoyens, www.geoportail.fr / A. Da Silva Pires (2008)
Titre : Géoportail, le portail internet des territoires et des citoyens, www.geoportail.fr : découvrir le site, les outils, les données, visualiser les explorations possibles Type de document : Guide/Manuel Auteurs : A. Da Silva Pires, Auteur Editeur : Paris : Foucher Année de publication : 2008 Collection : Plein pot Sous-collection : Net num. 52 Importance : 160 p. Format : 15 x 21 cm ISBN/ISSN/EAN : 978-2-216-10967-8 Langues : Français (fre) Descripteur : [Vedettes matières IGN] Infrastructure de données
[Termes IGN] données localisées 2D
[Termes IGN] données localisées 3D
[Termes IGN] géoportail BRGM-IGN
[Termes IGN] interface web
[Termes IGN] requête spatiale
[Termes IGN] visualisation 3DRésumé : (Editeur) Cet ouvrage est le premier en France à accompagner la démarche novatrice du Géoportail : un accès Internet à l'ensemble du patrimoine cartographique et des données géoréférencées du domaine public. Vous souhaitez explorer la cartographie française, vue du globe à votre rue ; vous voulez visualiser la géographie d'une région ; ou étudier les réseaux de transport, les unités administratives, les sites protégés, ou encore les archives documentaires attachées à votre région... Cet ouvrage, illustré de nombreuses captures d'écran du site, vous accompagne dans la découverte, étape par étape, du Géoportail et vous expose ses nombreuses richesses. Note de contenu : - Présentation
- L'interface 2D
- L'interface 3D
- Les données de géoportailNuméro de notice : 20075 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Manuel Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=46658 Réservation
Réserver ce documentExemplaires(3)
Code-barres Cote Support Localisation Section Disponibilité 20075-01 37.00 Livre Centre de documentation Géomatique Disponible 20075-02 37.00 Livre Centre de documentation Géomatique Disponible 20075-03 37.00 Livre Centre de documentation Géomatique Disponible
Titre : Headway in spatial data handling : 13th International Symposium on spatial data handling SDH, Montpellier, June 23rd - 25th 2008 Type de document : Actes de congrès Auteurs : Anne Ruas , Éditeur scientifique ; Christopher Gold, Éditeur scientifique Editeur : Berlin, Heidelberg, Vienne, New York, ... : Springer Année de publication : 2008 Collection : Lecture notes in Geoinformation and Cartography, ISSN 1863-2246 Conférence : SDH 2008, 13th international symposium on Spatial Data Handling, Headway in spatial data handling 23/06/2008 25/06/2008 Montpellier France Proceedings Springer Importance : 650 p. Format : 16 x 24 cm ISBN/ISSN/EAN : 978-3-540-68565-4 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Systèmes d'information géographique
[Termes IGN] analyse spatiale
[Termes IGN] classification dirigée
[Termes IGN] données localisées 3D
[Termes IGN] données spatiotemporelles
[Termes IGN] généralisation cartographique automatisée
[Termes IGN] modélisation
[Termes IGN] navigation
[Termes IGN] ontologie
[Termes IGN] relation spatiale
[Termes IGN] relief
[Termes IGN] représentation multiple
[Termes IGN] visualisation 3DRésumé : (Auteur) The international Symposium on Spatial Data Handling is the first research forum for Geographic Information Science. It is the primary event organised by the International Geographical Union's study group on Geographical Information Science. The symposium places particular emphasis on identifying significant headway in GIS. The papers published are carefully refereed by an international program committee composed of experts in various areas of GIS who are especially renowned for their scientific innovation. The proceedings of this series have become an important reference for researchers and students in the field of geography, cartography and geoinformation. Note de contenu : Shape and Spatial Relations 1
- A Study on how Humans Describe Relative Positions of Image Objects / Xin Wang, Pascal Matsakis, Lana Trick, Blair Nonnecke, Melanie Veltman
- Perceptual Sketch Interpretation / Markus Wuersch, Max J. Egenhofer
- The Shape Cognition and Query Supported by Fourier Transform / Tinghua Ai, Yun Shuai andJingzhong Li
Classification
- Classification of Landslide Susceptibility in the Development of Early Warning Systems / Dominik Gallus, Andreas Abecker, Daniela Richter
- Clusters in Aggregated Health Data / Kevin Buchin, Maike Buchin, Marc van Kreveld, Maarten Loffler, Jun Luo, Rodrigo I. Silveira
- Spatial Simulation of Agricultural Practices using a Robust Extension of Randomized Classification Tree Algorithms / J. Stephane Bailly, Anne Biarnes, Philippe Lagacherie
- Impact of a Change of Support on the Assessment of Biodiversity with Shannon Entropy / Didier Josselin, Ilene Mahfoud, Bruno Fady
Classification and Image Analysis
- Implicit Spatial Information Extraction from Remote Sensing Images / Erick Lopez-Ornelas, Guy Flouzat
- The Application of the Concept of Indicative Neighbourhood on Landsat ETM+ Images and Orthophotos Using Circular and Annulus Kernels / Madli Linder, Kalle Remm, Hendrik Proosa
- Sensitivity of the C-band SRTM DEM Vertical Accuracy to Terrain Characteristics and Spatial Resolution / Thierry Castel, Pascal Oettli
Process Modelling
- Improving the Reusability of Spatiotemporal Simulation Models: Using MDE to Implement Cellular Automata / Falko Theisselmann, Doris Dransch
- Support Vector Machines for Spatiotemporal Analysis in Geosensor Networks / Jon Devine, Tony Stefanidis
- Towards a Method to Generally Describe Physical Spatial Processes / Barbara Hofer, Andrew U. Frank
Generalisation and Multiple Representation
- A Data Model for Multi-Scale Topographic Data / J.E. Stoter, J.M. Morales, R.L.G. Lemmens, B.M. Meijers, P.J.M van Oosterom, C. W. Quak, H. T. Uitermark, L. van den Brink
- An Interoperable Web Service Architecture to Provide Base Maps Empowered by Automated Generalization / Theodor Foerster, Jantien Stoter, Rob Lemmens
- Combining Three Multi-agent Based Generalisation Models: AGENT, CARTACOM and GAEL / Cecile Duchene, Julien Gaffuri
3D and Relief
- Implementation of Building Reconstruction Algorithm Using Real World LIDAR Data / Rebecca O.C. Tse, Chris Gold, Dave Kidner
- A New Approach for Mountain Areas Cartography / Lo'ic Gondol, Arnaud Le Bris, Francois Lecordix
- Slope Accuracy and Path Planning on Compressed Terrain / W Randolph Franklin, Daniel M Tracy, Marcus A Andrade, Jonathan Muckell, Metin Inane, Zhongyi Xie, Barbara M Cutler
- Processing 3D Geo-Information for Augmenting Georeferenced and Oriented Photographs with Text Labels / Arnoud De Boer, Eduardo Dias, Edward Verbree
3D
- Interactive Geovisualization and Geometric Modelling of 3D Data - A Case Study from the Aknes Rockslide Site, Norway / Trond Nordvik, Chris Hording
- FieldGML: An Alternative Representation for Fields / Hugo Ledoux
- Marine GIS : Progress in 3D Visualization for Dynamic GIS / Rafal Goralski, Christopher Gold
Ontology
- The IGN-E Case: Integration Through a Hidden Ontology / A Gomez-Perez, JA Ramos, A Rodriguez-Pascual, LM Vilchez-Blazquez
- All Roads Lead to Rome - Geospatial Modeling of Hungarian Street Names with Destination Reference / Antal Guszlev, Lilla Lukacs
- Where is the Terraced House? On the Use of Ontologies for Recognition of Urban Concepts in Cartographic Databases / Patrick Luscher, Robert Weibel, William A. Mackaness
Uncertainty and Matching
- Information Processes Produce Imperfections in Data? The Information Infrastructure Compensates for Them / Andrew U. Frank
- Moving from Pixels to Parcels: The Use of Possibility Theory to Explore the Uncertainty Associated Object Oriented Remote Sensing / Alexis Comber, Alan Brown, Katie Medcalf, Richard Lucas, Daniel Clewley, Johanna Breyer, Peter Bunting, Steve Keyworth
- Data matching - a Matter of Belief / Ana-Maria Olteanu-Raimond, Sebastien Mustiere
Shape and Spatial Relation 2
- Deriving Topological Relationships Between Simple Regions with Holes / Mark McKenney, Reasey Praing, and Markus Schneider
- Spatial Rules Generate Urban Patterns: Emergence of the Small-World Network / H. Rezayan, M.R. Delavar, A. U. Frank, A. Mansouri
- Conceptual Neighborhoods of Topological Relations Between Lines / Rui M.P. Reis, MaxJ. Egenhofer, Joao L.G. Matos
- Spatial Support and Spatial Confidence for Spatial Association Rules / Patrick Laube, Mark de Berg, Marc van Kreveld
Road and Navigation
- A Primer of Picture-Aided Navigation in Mobile Systems / Robert Laurini, Silvia Gordillo, Francoise Raffort, Sylvie Servigne, Gustavo Rossi, Nan Wang, Andres Fortier
- Road Network Model for Vehicle Navigation using Traffic Direction Approach / Yang Yue, Anthony Gar-On Yeh, Qingquan Li
- Clustering Algorithm for Network Constraint Trajectories / Ahmed Kharrat, lulian Sandu Popa, Karine Zeitouni, Sami FaizNuméro de notice : 15418 Affiliation des auteurs : COGIT+Ext (1988-2011) Thématique : GEOMATIQUE/INFORMATIQUE Nature : Actes nature-HAL : DirectOuvrColl/Actes DOI : 10.1007/978-3-540-68566-1 En ligne : http://dx.doi.org/10.1007/978-3-540-68566-1 Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=34766 ContientRéservation
Réserver ce documentExemplaires(3)
Code-barres Cote Support Localisation Section Disponibilité 15418-01 CG2008 Livre Centre de documentation Congrès Disponible 15418-03 CG2008 Livre Centre de documentation Congrès Disponible 15418-02 K325 Livre LASTIG Dépôt en unité Exclu du prêt Investigations of high precision terrestrial laser scanning with emphasis on the development of a robust close-range 3D-laser scanning system / Hans Martin Zogg (2008)
Titre : Investigations of high precision terrestrial laser scanning with emphasis on the development of a robust close-range 3D-laser scanning system Type de document : Thèse/HDR Auteurs : Hans Martin Zogg, Auteur Editeur : Zurich : Institut für Geodäsie und Photogrammetrie IGP - ETH Année de publication : 2008 Collection : IGP Mitteilungen, ISSN 0252-9335 num. 098 Importance : 171 p. Format : 21 x 30 cm ISBN/ISSN/EAN : 978-3-906467-78-8 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s)
[Termes IGN] acquisition d'images
[Termes IGN] données localisées 3D
[Termes IGN] étalonnage d'instrument
[Termes IGN] lever souterrain
[Termes IGN] modélisation géométrique de prise de vue
[Termes IGN] précision géométrique (imagerie)
[Termes IGN] semis de points
[Termes IGN] télémètre laser terrestre
[Termes IGN] télémétrie laser terrestreIndex. décimale : 35.11 Géométrie et qualité des prises de vues Résumé : (Auteur) In recent years, numerous measurement systems and techniques have become available on the market for three-dimensional (3D) surveying of objects. Largely due to the increasing need of 3D-data, fast area-wide 3D-measurement methods are in high demand. In the world of surveying and the field of engineering geodesy, terrestrial laser scanning has been established as a newer measurement method for fast, area-wide SD-surveying. Terrestrial laser scanners measure distances and angles to objects without any contact. The actual geometry information of the scanned object has to be derived from a resulting 3D-point cloud in post-processing.
After the initial hype of terrestrial laser scanning, a slight disillusionment set in. Projects were not profitable or failed due to insufficient knowledge about laser scanning technology and its specifics. In addition, the hardware and software products available on the market often do not meet the requirements of specific applications. Thus, the selection of convenient applications for a particular terrestrial laser scanning system, the sensitivity in terms of environmental conditions, or the extensive post-processing of laser scanning data are just a few of the difficulties in using laser scanning technology. As a result, terrestrial laser scanning is rarely used for projects in engineering geodesy. Even though terrestrial laser scanning offers great potential, new fields of application have yet to be investigated.
This thesis originated from a project addressing the development of a qualified measurement system based on terrestrial laser scanning for the surveying of underground utility caverns in the field of water and sewage engineering. There was no convenient measurement system available on the market when the project started in 2005. There are three main objectives of this thesis: the development of a cost-efficient robust close-range 3D-laser scanning system largely for surveying underground utility caverns, the calibrations and investigations of terrestrial laser scanners with focus on the newly developed measurement system, and the development of new fields of application for terrestrial laser scanning. Moreover, this thesis contributes to the area of terrestrial laser scanning by offering better knowledge on its integration into engineering geodesy.
For the hardware development, the 2D-laser scanner SICK LMS200-30106 by Sick AG was selected and implemented as a distance measurement unit measuring distances and angles. This unit is well known and established in industrial applications and in the field of robotics. In addition, all components that were used for the close-range 3D-laser scanning system were selected according to predefined requirements. These requirements were strongly related to the application of the measurement of underground utility caverns. Furthermore, this thesis shows that an appropriate calibration of the close-range 3D-laser scanning system - the distance measurement unit specifically - allows its application in the field of engineering geodesy. Thus, appropriate calibration routines were developed, and intensive additional investigations of the measurement systems enabled the verification of the measurement accuracy and performance.
The close-range terrestrial 3D-laser scanner ZLS07 resulted from the development of a 3D-measurement system based on the terrestrial laser scanning technology. The ZLS07 is a robust and reliable measurement system that fulfils the requirements focused on surveying of underground utility caverns. Its specific limitations lie in the measurement range, accuracy, and angular resolution. However, the ZLS07 has been successfully established as a new measurement instrument at the surveying department of the city of Zurich. In addition to the hardware developments, an approach for automatic geometry modelling from 3D-point clouds was developed, tested, and discussed for post-processing 3D-point clouds of underground utility caverns. Furthermore, the ZLS07 was successfully used in other applications, such as the damage detection of an incinerator or the reverse engineering of technical constructions.Note de contenu : 1 Introduction
1.1 Motivation
1.2 Aims of the Thesis.
1.3 Outline
2 High Precision Terrestrial Laser Scanning
2.1 Terrestrial Laser Scanning in Engineering Geodesy
2.2 Specifications of Terrestrial Laser Scanners
2.3 The Measurement System "Terrestrial Laser Scanner"
2.4 Applications of Terrestrial Laser Scanning.
2.5 Remarks.
3 Development of Terrestrial Laser Scanner ZLS07
3.1 Requirements
3.2 Components of the ZLS07
3.3 Configuration of Terrestrial Laser Scanner ZLS07
3.4 Measurement Coordinate Systems
3.5 Software
3.6 Result of a Scan
3.7 Discussion
4 Calibration of Terrestrial Laser Scanner ZLSO 7
4.1 Calibration of Geodetic Sensors
4.2 Distance Measurement Unit
4.3 Errors of Axes
4.4 Synchronisation of Rotation Table and Distance Measurement Unit
4.5 Review
5 Validation of Terrestrial Laser Scanner ZLS07
5.1 Angle Measurement System
5.2 Wobbling of Vertical Axis
5.3 3D-Measurement Quality
5.4 Review
6 Acquisition of Underground Utility Caverns
6.1 Overview
6.2 ZLS07 for Acquisition of Underground Utility Caverns
6.3 Data Post-Processing Workflow
6.4 Review
7 Automatic Geometry Modelling
7.1 Data Modelling Requirements
7.2 Previous Work
7.3 Development of an Approach for Automatic Cavern Detection
7.4 Results
7.5 Review
8 Various Applications for Terrestrial Laser Scanner ZLS07
8.1 Damage Detection of an Incinerator
8.2 Reverse Engineering at the Overflow Construction of Nalps Dam (CH).
8.3 Review
9 Summary
9.1 Conclusions
9.2 Outlook
References
A Appendix
A. 1 Rotation Table ETH Zurich.
A.2 Software
A.3 Fourier-SeriesNuméro de notice : 15459 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Thèse étrangère DOI : 10.3929/ethz-a-005679006 En ligne : http://dx.doi.org/10.3929/ethz-a-005679006 Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=62725 Réservation
Réserver ce documentExemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 15459-01 35.11 Livre Centre de documentation En réserve M-103 Disponible
Titre : Library concept and design for lidar data processing Type de document : Article/Communication Auteurs : Nicolas David , Auteur ; Clément Mallet , Auteur ; Frédéric Bretar, Auteur Editeur : International Society for Photogrammetry and Remote Sensing ISPRS Année de publication : 2008 Collection : International Archives of Photogrammetry, Remote Sensing and Spatial Information Sciences, ISSN 1682-1750 num. 38-4/C1 Conférence : GEOBIA 2008, international conference on geographic object-based image analysis, Pixels, Objects, Intelligence GEOgraphic Object Based Image Analysis for the 21st Century 05/08/2008 08/08/2008 Calgary Alberta - Canada Open Access Proceedings Importance : 6 p. Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Lasergrammétrie
[Termes IGN] données lidar
[Termes IGN] données localisées 3D
[Termes IGN] topologie capteur
[Termes IGN] UMLRésumé : (auteur) Airborne Laser Scanning (ALS) is nowadays a very popular technology providing accurate altimetric data for remote sensing andmapping purposes. Therefore, many algorithms have been developed so far to process these data, depending on the application. Nevertheless, for researchers, it is still a challenging task to handle large amount of heterogeneous data and adapt them for their specificaim and processes. This paper reports the thoughts and the strategy developed by the MATIS laboratory of the Institut Ǵeographique National (IGN) about an efficient lidar library design in order to tackle these issues. The specification of an efficient and versatile lidar file format is first discussed. The standard and current lidar file formats are first reviewed and a new one, dedicated to raw data processing with high feature modularity is presented. Besides, existing code components and libraries are reviewed with regard to their compatibility for research development. Modularity, availability and license conditions are here the main selection criteria. Then, differents strategies for large data set handling are summarized and extended by a new solution, both based on lidar strip and raw sensor topology. These workflows are illustrated through a UML activity diagram dedicated to 2D spatial query. Finally, the current status of the implementation of this federative software as well as the perspectives of development are sketched. Numéro de notice : C2008-021 Affiliation des auteurs : MATIS (1993-2011) Thématique : IMAGERIE Nature : Communication nature-HAL : ComAvecCL&ActesPubliésIntl DOI : sans En ligne : https://www.isprs.org/proceedings/XXXVIII/4-C1/Sessions/Session2/6703_David_Proc [...] Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=94304 PermalinkManaging full waveform Lidar data : a challenging task for the forthcoming years / Frédéric Bretar (2008)PermalinkMastering ArcGIS / M. Price (2008)PermalinkA method for automated registration of unorganised point clouds / K. Bae in ISPRS Journal of photogrammetry and remote sensing, vol 63 n° 1 (January - February 2008)PermalinkPermalinkMulti-representation databases with explicitly modeled horizontal, vertical, and update relations / M. Bobzien in Cartography and Geographic Information Science, vol 35 n° 1 (January 2008)PermalinkPermalinkSupport à la cartographie diachronique des groupes élitaires dans la ville de Bruxelles / P. Collin (2008)PermalinkLa télédétection au service de la forêt / Françoise de Blomac in SIG la lettre, n° 93 (janvier 2008)PermalinkTerrain modeling from lidar data: Hierarchical K-means filtering and Markovian regularization / Nesrine Chehata (2008)Permalink