Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"3D city models"”.
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Real-time visualization of 3D city models
… handling of large geodata sets. Using virtual 3D city models, complex geospatial information can be communicated visually in an intuitive way. Therefore, real-time visualization of virtual 3D city models represents a key functionality for interactive exploration, presentation, analysis, and …
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Multi-scale representations of virtual 3D city models
Virtual 3D city and landscape models are the main subject investigated in this thesis. They digitally represent urban space and have many applications in different domains, e.g., simulation, cadastral management, and city planning. Visualization is an elementary component of these applications. …
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GPS-LiDAR sensor fusion aided by 3D city models for UAVs
… Unmanned Aerial Vehicles (UAVs), such as 3D modelling, filming, surveillance, and search and rescue. To perform these tasks safely and reliably, a continuous and accurate estimate of the UAVs’ positions is needed. Global Positioning System (GPS) receivers are commonly used for this …
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Analysis and exploration of virtual 3D city models using 3D information lenses
… addresses real-time rendering techniques for 3D information lenses based on the focus & context metaphor. It analyzes, conceives, implements, and reviews its applicability to objects and structures of virtual 3D city models. In contrast to digital terrain models, the application of focus & …
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The use of 3D geovisualisations for urban design : the case of informal settlement upgrading in South Africa
… Many researchers proclaimed that because 3D visualisations resemble the real environment more than traditional maps, and are more intuitive, therefore 3D geovisualisations are easier to interpret. The goal of this research is to investigate the use of 3D geovisualisations (specifically 3D …
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Texturierung und Visualisierung virtueller 3D-Stadtmodelle
Im Mittelpunkt dieser Arbeit stehen virtuelle 3D-Stadtmodelle, die Objekte, Phänomene und Prozesse in urbanen Räumen in digitaler Form repräsentieren. Sie haben sich zu einem Kernthema von Geoinformationssystemen entwickelt und bilden einen zentralen Bestandteil geovirtueller 3D-Welten. Virtuelle …
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Geovisual methods and techniques for the development of three-dimensional tactical intelligence assessments
… provides spatio-temporal GIS analysis as well as 3D geovisualisation and GIS programming. The work presents methods to enhance digital three-dimensional city models with application specific thematic information. This information facilitates further geovisual analysis, for instance, estimations of …
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Graphical SLAM for urban UAV navigation
… one approach uses environment modeling such as 3D city models to mitigate the effects of multipath and NLOS errors. Others pair GPS with odometry measurements from relative positioning sensors, such as Light Detection and Ranging (LiDAR) sensors. LiDAR-based odometry provides an accurate …
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3DCITYGH: un Approccio Parametrico Speditivo per il Rilievo Urbano Digitale e il City Information Modeling di Modelli Strutturali di isolati urbani.
… (geodati disponibili) per la realizzazione di un City Information Model (CIM) parametrico. Come ambiente di lavoro per la progettazione computazionale parametrica è stato scelto Grasshopper, un Linguaggio di Programmazione Visuale (VPL) all'interno di Rhinoceros, già ampiamente utilizzato nella …