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检索条件"丛书名=Lecture Notes in Geoinformation and Cartography"

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Three-Valued 9-Intersection for Deriving Possible Topological Relations from Incomplete Observations 1

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12th Association-of-Geographic-Information-Laboratories-for-Europe (AGILE) Conference/Workshop of the International-Society-of-Photogrammetry-and-Remote-Sensing (ISPRS)

作者： Kurata, Yohei Univ Bremen SFB TR Spatial Cognit 8 D-28334 Bremen Germany

ISBN: (数字)9783642003189

ISBN: (纸本)9783642003189

Topological relations, which concern how two objects intersect, are one of the most fundamental and well-studied spatial relations. Typically, topological relations are distinguished by the presence or absence of pairwise intersections between several parts of two objects. However, when an observation is not complete, it is often impossible to determine the presence or absence of some intersections. In order to support such uncertain situations, this paper introduces three-valued 9-intersection matrix (3-9i matrix), which records the presence, absence, or indeterminate state of the nine types of intersections between the objects. We can use the 3-9i matrix to describe the spatial arrangement of objects in various scenarios of incomplete observations. In addition, from the pattern of the 3-9i matrix we can computationally determine a set of topological relations that may hold between the objects. We assess the degree of topological information derived from the 3-9i matrix for 14 sets of topological relations between simple lines, regions, and bodies embedded in R-1, R-2, R-3, S-1 and S-2.

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引用

4th International Workshop on Information Fusion and Geographical Information Systems

作者： Moreno-Ibarra, Marco Levachkine, Serguei Torres, Miguel Quintero, Rolando Guzman, Giovanni Natl Polytech Inst Ctr Res Comp Intelligent Proc Geospatial Informat Lab Mexico City DF Mexico

ISBN: (纸本)9783642003035

This paper presents an approach to measure the semantic similarity between digital elevation model (DEMs). We Compute a semantic "distance" between concepts in hierarchical structure of geomorphologic application ontology. The method is composed of two stages: analysis and measurement. Analysis stage is focused on performing a geomorphometric analysis: a qualitative value (descriptor) representing a concept in ontology is assigned to each DEM's cell. Measurement stage is based on a comparison between the descriptors of two DEMs. In other words, we measure the semantic "distance" (called herein confusion) between two ontology concepts. The similarity is defined at two levels of measurement: local and global. The first one is defined at cell-level value and the second one considers the entire cells in a DEM. Thus, the similarity between two DEMs at the Conceptual level is established. For instance, Our methodology can detect that two DEMs share the same or similar geomorphologic features: plateau, downhill, etc.

关键词： Semantic similarity Digital elevation models Ontology Geomorphometric analysis

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Towards Geovisual Analysis of Crime Scenes - A 3D Crime Mapping Approach

Towards Geovisual Analysis of Crime Scenes - A 3D Crime Mapp...

引用

12th Association-of-Geographic-Information-Laboratories-for-Europe (AGILE) Conference/Workshop of the International-Society-of-Photogrammetry-and-Remote-Sensing (ISPRS)

作者： Wolff, Markus Asche, Hartmut Univ Potsdam Res Grp Geoinformat 3D D-14476 Potsdam Germany

ISBN: (纸本)9783642003189

This paper presents an approach towards facilitating geovisual analysis of crime scenes by introducing three-dimensional crime mapping techniques. Robbery scenes are analysed and integrated into a virtual three-dimensional environment using up-to-date methods of 3D geovisualization. For this purpose crime data as well as numerous geospatial data are integrated into a three-dimensional model of the German city of Cologne. Visualizing the results of crime data analysis in geovirtual environments eventually leads to 3D situation awareness in a civil security context. To allow for an easy transferability of methods and functions used in this approach, a GIS plug-in is developed.

关键词： Crime

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Theoretical Investigation of Terrorism. Ontology Development

Theoretical Investigation of Terrorism. Ontology Development

引用

4th International Workshop on Information Fusion and Geographical Information Systems

作者： Galjano, Phillip Popovich, Vasily RAS St Petersburg Inst Informat & Automat St Petersburg 199178 Russia

ISBN: (纸本)9783642003035

This paper considers the problem of combating the terroristic threat from a theoretical standpoint. For the sake of developing the theoretical concepts, the basic notions have been singled Out, and the subject domain was formalized The structure of the system serving for estimating the terroristic threat level is examined. The development of ontology, describing the subject domain, was emphasized. Analysis of the processes of ontology creation for such, system and description of the developed ontology are discussed.

关键词： Ontology Terrorism Geographic information system Monitoring system Security

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Modeling Land Use Change: A GIS Based Modeling Framework to Support Integrated Land Use Planning (NabanFrame) 1

引用

12th Association-of-Geographic-Information-Laboratories-for-Europe (AGILE) Conference/Workshop of the International-Society-of-Photogrammetry-and-Remote-Sensing (ISPRS)

作者： Berkhoff, Karin Herrmann, Sylvia Leibniz Univ Hannover Inst Environm Planning D-30519 Hannover Germany

ISBN: (数字)9783642003189

ISBN: (纸本)9783642003189

Monoculture rubber plantations replace traditional land use systems in subtropical south west China. This land use change intensified since 1990 and reduced natural diversity. Planning authorities need spatially explicit information for sustainable land use planning. We developed an integrated modeling cluster to provide decision support for planning authorities. Our definition of an integrated modeling framework was to apply and coordinate agro-economic, ecological and social models which altogether interact with a land allocation model via defined interfaces (no dynamic coupling). Data sources were remote sensing data, data from geographic information systems (GIS), questionnaires, narrative interviews, and ecological field surveys. We conducted GIS analysis (Euclidian distance, Euclidian allocation, focal mean, map algebra) to reference originally non-spatial information to spatial units. The baseline scenario based on the location factors elevation, distance to villages and available labor. We allowed land use change to occur only in regions outside nature protection zones. Villages served as spatial reference (and thus interface) for social information, farm types as spatial reference for agro-economic information. The result of the modeling framework was a map of land use change for the baseline scenario (2001-2007). Model results showed that rubber covered nearly the whole area that is below the rubber growing limit of 1200 meters in the year 2007. Fields concentrated on the western part of the study area where rubber growing is not possible. We showed that it was possible to integrate from various sources into a decision support tool. The value of the approach was that all data were referenced to spatial entities. The modeling framework provided land use maps and evaluated the implications of land use change from a social, agro-economic and ecological point of view. Planning authorities can use the results to conduct sustainable land use planning.

关键词： Rubber

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A Web-Service Approach for Multisensor Data Fusion and Geographic Information Systems

A Web-Service Approach for Multisensor Data Fusion and Geogr...

引用

4th International Workshop on Information Fusion and Geographical Information Systems

作者： Florea, Mihai Cristian Duclos-Hindie, Nicolas Bosse, Eloi Valin, Pierre Thales Canada Syst Div Quebec City PQ Canada

ISBN: (纸本)9783642003035

Different concepts from the higher-levels data fusion, such as Situation awareness, impact assessment, dynamic resource management, threat evaluation, and weapon assignment, as described in [Valin P, Technical Memorandum DRDC Valcartier TM 2008-090, 2008], can be addressed as a mix between the Geographic Information Systems (GIS) and the Multisensor Data Fusion (MSDF) systems. In compliance with the Department of National Defence and Canadian Forces Architecture Framework (DNDAF) and the Service Oriented Architecture (SOA), we develop a new web services implementation of MSDF System. The migration and the decomposition into web services of the Concept Analysis and Simulation Environment for Automatic Target Tracking and Identification (CASE ATTI) test bed, developed at DRDC Valcartier, is realized using a spiral approach. A validation process of the web services is proposed by comparison with the results generated by the CASE ATTI test bed.

关键词： GIS Multisensor data fusion DNDAF SOA Web-services

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Matching River Datasets of Different Scales 1

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12th Association-of-Geographic-Information-Laboratories-for-Europe (AGILE) Conference/Workshop of the International-Society-of-Photogrammetry-and-Remote-Sensing (ISPRS)

作者： Kieler, Birgit Huang, Wei Haunert, Jan-Henrik Jiang, Jie Leibniz Univ Hannover Inst Cartog & Geoinformat Appelstr 9A D-30167 Hannover Germany Natl Geomat Ctr China Dept Geospatial Data Prod R & D Beijing 100044 Peoples R China

ISBN: (数字)9783642003189

ISBN: (纸本)9783642003189

In order to ease the propagation of updates between geographic datasets of different scales and to support multi-scale analyses, different datasets need to be matched, that is, objects that represent the same entity in the physical world need to be identified. We propose a method for matching datasets of river systems that were acquired at different scales. This task is related to the problem of matching networks of lines, for example road networks. However, we also take into account that rivers may be represented by polygons. The geometric dimension of a river object may depend, for example, on the width of the river and the scale. Our method comprises three steps. First, in order to cope with geometries of different dimensions, we collapse river polygons to centerlines by applying a skeletonization algorithm. We show how to preserve the topology of the river system in this step, which is an important requirement for the subsequent matching steps. Secondly, we perform a pre-matching of the arcs and nodes of the line network generated in the first step, that is, we detect candidate matches and define their quality. Thirdly, we perform the final matching by selecting a consistent set of good candidate matches. We tested our method for two Chinese river datasets of the same areal extent, which were acquired at scales 1:50 000 and 1:250 000. The evaluation of our results allows us to conclude that our method seldom yields incorrect matches. The number of correct matches that are missed by our method is quite small.

关键词： data matching network multi-scale representation generalization skeletonization

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Schemes for Data and User Authentication in Distributed GIS

Schemes for Data and User Authentication in Distributed GIS

引用

4th International Workshop on Information Fusion and Geographical Information Systems

作者： Shtanko, Sergey Pankin, Andrey RAS St Petersburg Inst Informat & Automat St Petersburg 199178 Russia

ISBN: (纸本)9783642003035

The paper specifies approaches to the realization of data and User authentication functions in distributed GIS, allowing for avoiding the existing protocols' disadvantages, and thus accounting for the requirements for the geographical information system (GIS) safety. The authors propose the method Of user's private key storing at the server for the cases when the private key storing cannot be realized at the user's end. A method binding the user's identification process to the geographical location is proposed.

关键词： Distributed GIS Electronic digital signature Authentication

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Extraction of Features from Mobile Laser Scanning Data for Future Driver Assistance Systems 1

引用

12th Association-of-Geographic-Information-Laboratories-for-Europe (AGILE) Conference/Workshop of the International-Society-of-Photogrammetry-and-Remote-Sensing (ISPRS)

作者： Brenner, Claus Leibniz Univ Hannover Inst Cartog & Geoinformat D-30167 Hannover Germany

ISBN: (数字)9783642003189

ISBN: (纸本)9783642003189

Research and development of driver assistance systems is currently a very active field. One building block of future systems will be an accurate and reliable positioning, which can be realized by relative measurement, using on-board sensors and maps of the environment. However, a prerequisite will be that such maps can be produced fully automatically. This paper explores the use of dense laser scans from mobile laser scanning systems for the production of such maps. After presenting the problem and the matching approach, we introduce our test field which consists of a 22 km scan of roads, both inner city streets as well as highways. It is shown how suitable features can be extracted fully automatically. Finally, for a given trajectory, we evaluate how positioning will perform and draw conclusions regarding applicability and future work.

关键词： Surface analysis

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A Multi-scale and Multi-modal Transportation GIS for the City of Guangzhou

A Multi-scale and Multi-modal Transportation GIS for the Cit...

引用

4th International Workshop on Information Fusion and Geographical Information Systems

作者： Chen, Shaopei Claramunt, Christophe Ray, Cyril Tan, Jianjun Chinese Acad Sci Guangzhou Inst Geochem Guangzhou 510640 Peoples R China

ISBN: (纸本)9783642003035

The search for better urban living has significantly increased the demand for efficient and sustainable multi-modal transportation systems in large urban areas. This should favor emergence of balanced transportation systems that use each mode for what it does best. However, the development of urban transportation policies partly relies on the availability of appropriate data and then information. The research introduced in this paper proposes a multi-modal and multi-scale data model oriented to the representation Of the urban transportation system of the city of Guangzhou in China The model introduced takes into account different transportation modes and integrates them within a federated data model designed using all object-oriented approach. Such a model allows the development of., specialized services designed after a survey and study Of users' and planners' requirements. The approach is experimented in a district Of the City Of Guangzhou and validated by a prototype development. This experimental system enables transportation planners and decision-makers to take better decisions effectively, and provides high-quality geospatial information-based services to final end-users

关键词： Transportation GIS Multi-modal transportation network Object-oriented data modeling

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