Results 271 to 280 of about 142,306 (307)
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3D City Modeling Based on Hidden Markov Model
2007 IEEE International Conference on Image Processing, 2007In this paper, we present an automatic method for the 3D building reconstruction from satellite images. The proposed approach consists in reconstructing buildings by assembling simple urban structures extracted from a grammar of 3D parametric models, as a "LEGO" game.
Florent Lafarge +3 more
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How to achieve consistency for 3D city models
GeoInformatica, 2009Consistency is a crucial prerequisite for a large number of relevant applications of 3D city models, which have become more and more important in GIS. Users need efficient and reliable consistency checking tools in order to be able to assess the suitability of spatial data for their applications. In this paper we provide the theoretical foundations for
Gerhard Gröger, Lutz Plümer
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Towards Interactive 3D City Models on the Web
International Journal of 3-D Information Modeling, 2012A ubiquitous accessibility of data over the Web nowadays is very common. Although the Web, 3D graphics, and geographic data are crossing their ways, common applications are typically based on technologies that are rather esoteric to most web-developers.
Rainer Jochem, Marcus Goetz
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An Efficient Platform for 3D City Model Visualization
2006 IEEE International Symposium on Geoscience and Remote Sensing, 2006This paper presents an overview of the design of the system for interactive 3-D visualization of the city model. It uses high resolution images of IKONOS satellite and corresponding camera model of Rational Polynomial Coefficients (RPC) for building texture mapping and orthorectified images for ground texture mapping.
Xiaojing Huang 0001 +3 more
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Round Table Session on “3D-City-Modeling”
eCAADe proceedings, 2002According to eCAADe’s mission, the exchange and collaboration within the area of computer aided architectural design education and research, while respecting the pedagogical and administrative approaches in the different schools and countries, can be regarded as a core activity. On the occasion of eCAADe 2001 in Helsinki a working session on the topic “
Dokonal, Wolfgang, Martens, Bob
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Modeling Cities in 3D: A Cellular Automaton Approach
Environment and Planning B: Planning and Design, 2008This paper presents a quasi-3D cellular automaton (CA) simulation model of cities. A 2D CA model includes a cell attribute that represents building height information. Dynamic processes are depicted using four parameters: initial building coverage, interaction with adjacent neighborhood, inertia, and noise.
Lucien Benguigui +2 more
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3D City Modeling Using Cognitive Loops
Third International Symposium on 3D Data Processing, Visualization, and Transmission (3DPVT'06), 20063D city modeling using computer vision is very challenging. A typical city contains objects which are a nightmare for some vision algorithms, while other algorithms have been designed to identify exactly these parts but, in their turn, suffer from other weaknesses which limit their application.
Nico Cornelis +3 more
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Network-Based Visualization of 3D Landscapes and City Models
IEEE Computer Graphics and Applications, 2007To improve the visualization of large 3D landscapes and city models in a network environment, the authors use two different types of hierarchical level-of-detail models for terrain and groups of buildings. They also leverage the models to implement progressive streaming in both client-server and peer-to-peer network architectures.
Royan, Jérôme +3 more
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Proceedings of the 17th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, 2009
The shapes of our cities change frequently. These changes have to be reflected in data sets representing urban objects. However, it must be assured that frequent updates do not affect geometric-topological consistency. This important aspect of spatial data quality guarantees assumptions that users and applications of 3D city models rely on, viz.
Gerhard Gröger, Lutz Plümer
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The shapes of our cities change frequently. These changes have to be reflected in data sets representing urban objects. However, it must be assured that frequent updates do not affect geometric-topological consistency. This important aspect of spatial data quality guarantees assumptions that users and applications of 3D city models rely on, viz.
Gerhard Gröger, Lutz Plümer
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3D Modeling of Cities for Virtual Environments
2021 IEEE International Conference on Big Data (Big Data), 2021Calvin Davis +9 more
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