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Leistungskriterien zur Qualitätskontrolle von Robottachymetern / B. Krikel (2004)
Titre : Leistungskriterien zur Qualitätskontrolle von Robottachymetern Titre original : [Critères de performance pour le contrôle qualité du robot tachéomètre] Type de document : Monographie Auteurs : B. Krikel, Auteur Editeur : Bonn : Rheinische Freidrich-Wilhelms-Universität Bonn Année de publication : 2004 Collection : Mitteilungen der geodätischen Institute, ISSN 0343-7361 num. 92 Importance : 117 p. Format : 21 x 30 cm Note générale : Bibliographie Langues : Allemand (ger) Descripteur : [Vedettes matières IGN] Géodésie
[Termes IGN] analyse comparative
[Termes IGN] contrôle qualité
[Termes IGN] détection de cible
[Termes IGN] incertitude de mesurage
[Termes IGN] instrument de géodésie
[Termes IGN] objet mobile
[Termes IGN] performance
[Termes IGN] positionnement cinématique en temps réel
[Termes IGN] tachéomètre électroniqueIndex. décimale : 30.03 Instruments de géodésie Résumé : (Auteur) A wide range of geodetic measurement methods use tachymetry for technical implementation. The number of robotic-tachymeters with automatic target recognition has increased considerably during the last years. These instruments provide a precise target detection without manual operation by the user and help to accelerate measuring processes due to their automated units.
Différent methods of testing tachymeters have been established during the past years, but not all can be applied to robotic-tachymeters. The increasing automation of measurement processes and the complexity of the measurement systems require new testing approaches, which should not only be component based but should also take into consideration the system performance. Because of this automated tracking function robotic-tachymeters are able to carry out measurements to moving targets. To meet the requirements of robotic-tachymeters the existing testing methods have to be expanded to kinematic situations.
This thesis deals with the functional principles of target recognition and tracking and introduces the requirements for performance ratings. The principles of testing methods which are used in the surveying-related applications are compared to the methods of the ,Physikalisch-Technische Bundesanstalt" (PTB). To express the uncertainties of measurements every single step of the measuring process is represented in a signal-flow-chart. These charts serve as a basis to, show the influence of some components on the results during the measurements. For the description of these uncertainties the ,Guide to the expression of uncertainty in measurement" (GUM) is used.
To examine the behaviour of robotic-tachymeters a testing method using a rotating circular path is introduced. The circular path has been set up in a way to enable extensive analyses providing time-related positions. The setup of the circular path is realised in two différent ways i.e. a horizontal or a vertical rotation level. The results contain the influence of différent measurement categories. A simulation serves to show the influence on the circular path by roughly synchronised measurement categories. The offset of the circular path can be used to calculate the time offset between the measurement categories. The time-related positions can further be used to derive the absolute position offset and to estimate the deviation. As examples two robotic-tachymeters have been examined, i.e. the Trimble 5602 DR200+ and the Zeiss Elta S10. The testings have shown that the absolute position offset turns out to be considerably larger than the offset of the circular path appears to be. The absolute position offset depends on the distance and rotational speed and take place in the range of a few inches. On the other hand the circular offsets are even smaller. The results allow comparisons between the selected set-up as well as between the examined instruments. The horizontal set-up delivers worse results than the vertical set-up. Based on the différent techniques of target recognition and tracking the instruments use, the circular path shows différent performances which serve as performance ratings. The capability of the circular path to supply performance-ratings has been proven.
The thesis concludes that a multitude of testing-approaches of tachymeters can be applied to the new measuring system " robotic-tachymeter ". It is not advisable to use either the component-based or the system-based testing methods only. Both testing-methods, have their own field of operation. The thesis recommends an introduction of rotational checking routines for quality control. Furthermore propositions are made to improve the construction of the circular path to meet the requirements of future instrumental developments.Numéro de notice : 15141 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Monographie Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=55074 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 15141-01 30.03 Livre Centre de documentation En réserve M-103 Disponible Efficient flow computation on massive grid terrain datasets / L. Arge in Geoinformatica, vol 7 n° 4 (December 2003)
[article]
Titre : Efficient flow computation on massive grid terrain datasets Type de document : Article/Communication Auteurs : L. Arge, Auteur ; J.S. Chase, Auteur ; et al., Auteur Année de publication : 2003 Article en page(s) : pp 283 - 313 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Informatique
[Termes IGN] algorithmique
[Termes IGN] crue
[Termes IGN] données massives
[Termes IGN] écoulement des eaux
[Termes IGN] flux de données
[Termes IGN] géomorphologie
[Termes IGN] itinéraire
[Termes IGN] jeu de données localisées
[Termes IGN] mise à l'échelle
[Termes IGN] traitement de données localiséesRésumé : (Auteur) As detailed terrain data becomes available, GIS terrain applications target larger geographic areas at finer resolutions. Processing the massive datasets involved in such applications presents significant challenges to GIS systems and demands algorithms that are optimized for both data movement and computation. In this paper we present efficient algorithms for flow routing on massive grid terrain datasets, extending our previous work on flow accumulation. Our algorithms are developed in the framework of external memory algorithms and use I/0-techniques to achieve efficiency. We have implemented the algorithms in the Terraflow system, which is the first comprehensive terrain flow software system designed and optimized for massive data. We compare the performance of Terraflow with that of state-of-the-art commercial and opensource GIS systems. On large terrains, Terraflow outperforms existing systems by a factor of 2 to 1,000, and is capable of solving problems no system was previously able to solve. Numéro de notice : A2003-386 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/INFORMATIQUE Nature : Article DOI : 10.1023/A:1025526421410 En ligne : https://doi.org/10.1023/A:1025526421410 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=26466
in Geoinformatica > vol 7 n° 4 (December 2003) . - pp 283 - 313[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 057-03041 RAB Revue Centre de documentation En réserve L003 Disponible Assimilation de données in situ et télédétection pour la modélisation hydrologique / W. Castaings in Bulletin [Société Française de Photogrammétrie et Télédétection], n° 172 (Octobre 2003)
[article]
Titre : Assimilation de données in situ et télédétection pour la modélisation hydrologique Type de document : Article/Communication Auteurs : W. Castaings, Auteur ; F.X. Le Dimet, Auteur ; D. Dartus, Auteur Année de publication : 2003 Article en page(s) : pp 50 - 60 Note générale : Bibliographie Langues : Français (fre) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] assimilation des données
[Termes IGN] bassin hydrographique
[Termes IGN] filtre de Kalman
[Termes IGN] modèle hydrographique
[Termes IGN] modèle stochastiqueRésumé : (Auteur) Une amélioration de notre connaissance des hydrosystèmes requiert l'utilisation conjointe de modèles hydrologiques qui sont des représentations imparfaites de la réalité, de données d'observations directement ou indirectement liées aux variables d'état ou de sortie de ces modèles et d'informations statistiques pour corréler et pondérer toutes ces sources d'informations. Un couplage systématique présente de nombreuses difficultés. L'assimilation de données est l'ensemble des techniques qui permettent de combiner de façon optimale (en un sens à définir) toutes ces sources d'information. Les principales méthodes sont présentées et les problèmes liés à l'assimilation de données notamment issues de la télédétection sont discutés. Numéro de notice : A2003-412 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=26492
in Bulletin [Société Française de Photogrammétrie et Télédétection] > n° 172 (Octobre 2003) . - pp 50 - 60[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 018-03041 RAB Revue Centre de documentation En réserve L003 Disponible Unsupervised target detection in hyperspectral images using projection pursuit / S.S. Chiang in IEEE Transactions on geoscience and remote sensing, vol 39 n° 7 (July 2001)
[article]
Titre : Unsupervised target detection in hyperspectral images using projection pursuit Type de document : Article/Communication Auteurs : S.S. Chiang, Auteur ; C.I. Chang, Auteur ; I.W. Ginsberg, Auteur Année de publication : 2001 Article en page(s) : pp 1380 - 1391 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image optique
[Termes IGN] détail topographique artificiel
[Termes IGN] détection de cible
[Termes IGN] image hyperspectraleRésumé : (Auteur) The authors present a projection pursuit (PP) approach to target detection. Unlike most of developed target detection algorithms that require statistical models such as linear mixture, the proposed PP is to project a high dimensional data set into a low dimensional data space while retaining desired information of interest. It utilizes a projection index to explore projections of interestingness. For target detection applications in hyperspectral imagery, an interesting structure of an image scene is the one caused by man-made targets in a large unknown background. Such targets can be viewed as anomalies in an image scene due to the fact that their size is relatively small compared to their background surroundings. As a result, detecting small targets in an unknown image scene is reduced to finding the outliers of background distributions. It is known that “skewness,” is defined by normalized third moment of the sample distribution, measures the asymmetry of the distribution and “kurtosis” is defined by normalized fourth moment of the sample distribution measures the flatness of the distribution. They both are susceptible to outliers. So, using skewness and kurtosis as a base to design a projection index may be effective for target detection. In order to find an optimal projection index, an evolutionary algorithm is also developed to avoid trapping local optima. The hyperspectral image experiments show that the proposed PP method provides an effective means for target detection. Numéro de notice : A2001-198 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1109/36.934071 En ligne : https://doi.org/10.1109/36.934071 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=21892
in IEEE Transactions on geoscience and remote sensing > vol 39 n° 7 (July 2001) . - pp 1380 - 1391[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 065-01071 RAB Revue Centre de documentation En réserve L003 Disponible 4th AGILE Conference on geographic information science, April 19-21, 2001, Brno, Czech Republic / Milan Konecny (2001)
Titre : 4th AGILE Conference on geographic information science, April 19-21, 2001, Brno, Czech Republic : GI in Europe : Intergrative, Interoperable, Interactive Type de document : Actes de congrès Auteurs : Milan Konecny, Éditeur scientifique ; Lucie Friedmannova, Éditeur scientifique ; Jiri Golan, Éditeur scientifique ; Miroslav Kolar, Éditeur scientifique Editeur : Association of Geographic Information Laboratories in Europe AGILE Année de publication : 2001 Autre Editeur : Ispra [Italie] : Joint Research Centre JRC Conférence : AGILE 2001, 4th International Conference on Geographic Information Science 19/04/2001 21/04/2001 Brno République tchèque Importance : 775 p. Format : 21 x 30 cm ISBN/ISSN/EAN : 978-80-210-2579-0 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique
[Termes IGN] données environnementales
[Termes IGN] données socio-économiques
[Termes IGN] géovisualisation
[Termes IGN] infrastructure mondiale des données localisées
[Termes IGN] interopérabilité
[Termes IGN] modélisation spatiale
[Termes IGN] service fondé sur la position
[Termes IGN] traitement de données localiséesNote de contenu : **Opening session
Rhind D, United Kingdom: Global and national Geographic Information policies, practice and education in a g-business world
**Plenary session 1, GI policies
- Craglia M, Annoni A (United Kingdom/Italy): Towards the development of a Geographic Information Policy for the European Commission
- Craglia M, Dallemond J-.F; Masser I (United Kingdom/Italy/The Netherlands): The role of geographic information in facilitating accession into the European Union
- Konecny M, Stanek K (Czech Republic): SDI in Czech Republic: Portal age
- Valpreda E, Cremona G, Venditti A, Milillo A (Italy): A Shared GIS for the Hydrological Risk Management at National Level
**Working group meeting, Education
- Toppen F (The Netherlands): Towards an AGILE Working Group on GI Education
- Johnson A (USA): Pedagogical Approaches to Teaching GIS: "'Hook Them or Sink Them"
- Johnson A (USA): GIS and Distant Education - Using the Virtual Campus to Expand University GIS Programs
- Salvemini M, Toppen F (Italy/The Netherlands): Certification of the GI professional, an issue (again) or not (yet)?
**Plenary session 2, Environmental modelling
- Bogner D, Dabernig M, Karen G (Austria): Assessment of Agricultural Land use in Urban Regions as a Decision Support System Using Web-GIS
- Suarez .J, Evans S, Randle T, Henshall P, Houston T, Gardiner B, Dunham R (United Kingdom) The development of a generic framework for model integration in forest management. The UK Forestry Commission CoreModel programme
- Clare J, Ray D (United Kingdom): A Spatial Model of Ecological Site Classification for forest management in Britain
- Haase m, Beuerle R, Barnikel G, Moser M, Stegmaier A (Germany): Evaluation of the Ecomorphological Quality of Running Waters using a GIS
- Laube P (Switzerland): A Classification of Analysis Methods for Dynamic Point Objects in Environmental GIS
**Parallel session 1, Socio-economic modelling
- Benenson I, Omer I, Hatna E (Israel): Agents in GIS environment — Modeling Urban Population Distribution
- Bittner S (Austria): An agent-based architecture for the simulation of social reality in a cadastre
- Staunstrup J IC (Denmark): Generalization of Cadastral CHanges
- Morojele N, Krygsman S, de Jong T (South Africa/The Netherlands): An evaluation of retail potential using GIS-based Decision Support functionality; a case study of Cape Town, South Africa.
- de Jong T, Moritz J, van Eck J R (The Netherlands/South Africa): Using optimisation techniques for comparison of the accessibility criteria of facility siting scenarios; a case study of siting police stations in South Africa's Bushbuckridge area.
**Parallel session 2, Location based and mobile services
- Corona B, Winter S (Austria): Navigation information for pedestrians from city maps
- Reinhardt W Joos G (Germany): Concept of a GIS and location based services for mountaineers
- Timpf S (Switzerland): The Information Broker: Problem-solving knowledge for location-based services
- Mania H (Finland): Mobile GIS and Multimedia as Fieldwork Support in Helsinki Water
- Lehto L, Kahkonen J (Finland): Multi-purpose Publishing of Geodata in the Web
**Parallel session 3, Spatial data infrastructure
- Reicken J (Germany): The improvement of the access to public geospatial data of cadastral and surveying and mapping as a part of the development of a NSDI in Northrhine-Westfalia, Germany
- Karnavou E, Gritzas G (Greece): Assessing achievements and prospects of GI and GIS in Greece: Towards a generic conceptual framework
- Bernabe MA, Gould M, Muro-Medrano P R, Nogueras J, Zarazaga F J (Spain): Effective steps toward the Spain National Geographic Information Infrastructure.
- Jonita A (Romania): The premises for the building of Geographical Information Infrastructure in Romanian's Society of the 21st Century
- Gouveia C, Henriques P Nicolau R, Rocha J, Santos M (Portugal): Moving from CEN TC 287 to ISO/TC 211 - The approach of the Portuguese National Geographic Information Infrastructure
- Bielecka E (Poland): Potential Users of the Polish Information System and Their Needs in the Field of Spatial Information
**Parallel session 4, Young researcher's forum
- Kolodziej K (USA): Using the Unified Modeling Language (UML) to Model Distributed GIS Components for Improving Interoperability
- Bucher B (France): A Model to Store and Reuse Geographic Application Patterns
- Campagna M, De Mantis A (Italy): Geographic Spaces / Digital Places: Towards a Communicative Approach for Urban and Regional Planning
- Ostlaender N (Germany): Evaluating the suitability of digital datasets for cause studies on nutrient contents of a specific region - Focused on satellite imagery (IRS —1D) and ATKIS data
- Fahller M (Sweden): Geostatistics for marine geological mapping
- Schroeder L (Denmark): Data Quality Declarations concerning Building Objects in Maps and Registers
- Tikunov A V (Russia): Cartographic Evaluation of Innovation Potential
- Trnka .J (Sweden): HAZMAT Transportation Routing, Monitoring and Incident Solving in GIS Environment
**Plenary session 3, Interoperability 1
- Dessard V, Margaulies S (Belgium): Interoperability on the Web ! (Using OpenGIS Interfaces)
- Cantan 0, Casanovas M, Gutierrez Nogueraz J Zarazaga F J (Spain): Joining Geographic Catalog Services and Map Servers with GIS applications
- Bernard L, Einspanier U, Streit U (Germany): Developing OpenGIS Catalog Services for a GDI - Lessons learned
- Friis-Christensen A (Denmark): Modeling Geographic Data Using UML
- Wei S, .loos Q, Reinhardt W (Germany): Management of spatial features with GML
**Working group meeting, Interoperability 2
- Wirtz D (Switzerland): Pluggable Terrain Module - An implementation architecture for distributed digital terrain modeling
- Nakimpour Timpf S (Switzerland): Using Ontologies for resolution of Semantic Heterogeneity in GIS
- Bernard L,1Wytzisk A, Streit U (Germany): Dynamic Interoperable GeoProcessing and Geosimulation - Scenarios, FRAmeworks, AND prototypes
**Parallel session 6, Planning
- Geertman S (The Netherlands): An Internet-based inventory of Planning Support Systems: some tentative results
- Jiang B, Huang B, Vasek V (Sweden/Czech republic): Geovisualisation for Planning Support Systems
- Pundt H, Moltgen J (Germany): Gl-Components to Support Participation in Environmental Planning Processes
**Parallel session 7, Environmental modelling and remote sensing
- Shanker G H (India): Terrain Evaluation for Eco-Restoration using Remote Sensing and GIS
- Mostaecio C, Laurini R (Argentina/France): Structuring and Indexing Field-oriented Databases
- Sobehuk R (Russia): Geological hazards at coastal zones modelling based on Remote Sensing Data for Intelligent Environmental Emergency & Risk Management Systems Toolbox
- Luoto M, Toivonen T, Heikkinen R K (Finland): Prediction of total and rare plant species richness from satellite images and GIS data in agricultural landscapes
- Markov N, Napryushkin A (Russia): Self-organizing GIS for solving problems of ecology and landscape studying
**Parallel session 8, GI in the new economy
- Senkler K, Reinke A (Germany): Requirements of interoperabie e-commerce services within an infrastructure for distributed GI-Services
- Gabriel P Wagner R (Germany): GIS meets E-Commerce: First Steps towards a General Architecture for Geodata Markets
- Brox C, Kuhn W (Germany): Marketplaces for Geographic Information
- Banares JA, Alvarez P, Cantan 0, Fernandez P, Casanovas M, Muro-Medrano P R (Spain): Integration of location-based services for Field support in CRM
- Frank A U, Martinez-Asenjo B (Austria): The Transformation of NMAs from. Government Departments to Independent Organizations: An Economic Overview
**Parallel session, GI processing and usability
- Castelloe D, Mooney P Winstanley A (Ireland): Multi-Objective Optimisation on Transportation Networks
- Brindlev P, Fryers P, Maheswyrart R, Wise S (United Kingdom): An empirical study to assess the accuracy of simple aerial interpolation methods
- Podobnika T, Ostir K, Stanek Z, Veljanovski T (Slovenia): Archaeological Predictive Modelling in Cultural Resource Management
- de Bruin S (The Netherlands): The value of spatial information — Decision-analytical assessment of a quality component
- O'Donoghue D, Winstanley A (Ireland): Finding Analogous Structures in Cartographic Data
**Parallel session 10, Visualisation
- Quingwen Q P R (China): Application of GeoObject-Graphic-Pattern (TUPU) in Cartographic Generalization
- Van Oosterom P, Tijssen T, Alkemade I, de Vries M (The Netherlands): Multi-source Cartography in Internet GIS
- Gadal S, Nicolas G (France/Switzerland): Locus-object Semantic in Digital Cartography
- Emmer V (The Netherlands): Determining the effectiveness of animations to represent geo-spatial temporal data: a first approach
**Plenary session 4, Strategic questions
- Annoni A (Italy): European Projections Interoperability
- Moellering, H (USA): lie al Cartography: Past, Present, and Future
- Gould M Herring, J (Spain/USA): Redefining GISNuméro de notice : 19333 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Actes Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=81918 Réservation
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