Sökning: "3D-city models"

Visar resultat 1 - 5 av 9 avhandlingar innehållade orden 3D-city models.

  1. 1. Visualisation and Generalisation of 3D City Models

    Författare :Bo Mao; Yifang Ban; Lars Harrie; Monika Sester; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; 3D city models; Visualisation; CityGML; X3D; Generalisation; Aggregation; Typification; Quality evaluation; Information technology; Informationsteknik; SRA - E-vetenskap SeRC ; SRA - E-Science SeRC ;

    Sammanfattning : 3D city models have been widely used in different applications such as urban planning, traffic control, disaster management etc. Effective visualisation of 3D city models in various scales is one of the pivotal techniques to implement these applications. LÄS MER

  3. 2. Visualisation and Generalisation of 3D City Models

    Författare :Bo Mao; Yifang Ban; Lars Harrie; Monika Sester; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; 3D city models; visualisation; generalisation; multiple representation structure; similarity evaluation; aggregation; typification; shell model; street index; texture compression; texture segmentation; SRA - ICT; SRA - Informations- och kommunikationsteknik;

    Sammanfattning : 3D city models have been widely used in various applications such as urban planning, traffic control, disaster management etc. Efficient visualisation of 3D city models in different levels of detail (LODs) is one of the pivotal technologies to support these applications. LÄS MER

  4. 3. Integrating BIM and GIS for 3D City Modelling : The Case of IFC and CityGML

    Författare :Mohamed El-Mekawy; Anders Östman; Väino Tarandi; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Information technology; Informationsteknik;

    Sammanfattning : 3D geoinformation has become a base for an increasing number of today’s applications. Examples of these applications are: city and urban planning, real estate management, environmental simulation, crisis and disaster management, telecommunication, facility management and others. LÄS MER

  5. 4. The Integration of 3D Geodata and BIM Data in 3D City Models and 3D Cadastre

    Författare :Jing Sun; Kent Eriksson; Anders Östman; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; 3D geodata; BIM; city models; 3D cadastre; geometric quality; CityGML; LADM; laser scanning; Geodesy and Geoinformatics; Geodesi och geoinformatik; Geodesi; Geodesy;

    Sammanfattning : The initial geographic information system (GIS) and building information modelling (BIM) are designed and developed independently in order to serve different purposes and use. Within the prolific increase and growing maturity of three-dimensional (3D) technology, both 3D geodata and BIM data can specify semantic data and model 3D buildings that are prominent for the 3D city models and 3D cadastre. LÄS MER

  7. 5. Harmonisation of 3D geodata : a prerequisite for a digital information flow for applications in the planning and building sector

    Författare :Helen Eriksson; Institutionen för naturgeografi och ekosystemvetenskap; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Data harmonisation; schema extension; 3D buildings; 3D city models; GeoBIM; lifecycle and version management; emporal information; user requirements; Guidelines; Hydrography;

    Sammanfattning : Data harmonisation is a prerequisite for smart cities, for a more efficient information flow in the planning and building process and for many applications in the urban environment. Ideally, data harmonisation will result in a digital information flow that include information from the whole lifecycle of a feature, for example for buildings, roads and tunnels. LÄS MER