Sökning: "automatic 3D city models"

Visar resultat 1 - 5 av 8 uppsatser innehållade orden automatic 3D city models.

  1. 1. Streamlining 3D City Modeling for Urban Flow Simulations by Automatic Integration of Multisource Topography

    Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/Institutionen för fysik

    Författare :Klara Lindroth; [2023]
    Nyckelord :automatic 3D city models; surface reconstruction; geometry pre-processing; CFD; OSM height attributes;

    Sammanfattning : In the workflow of computational fluid dynamics, geometry preparation is commonly the most time-consuming step. For a fast CFD simulation, automatic surface reconstruction to obtain 3D city models for a chosen area is essential. To address this need, a literature study was conducted to map available data suitable for 3D city models. LÄS MER

  3. 2. OSM-Based Automatic Road Network Geometries Generation on Unity

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Xingjiang Yu; [2019]
    Nyckelord :;

    Sammanfattning : Nowadays, while 3D city reconstruction has been widely used in important topics like urban design and traffic simulation, frameworks to efficiently model large-scale road network based on data from the real world are of high interests. However, the diversity of the form of road networks is still a challenge for automatic reconstruction, and the information extracted from input data can highly determine the final effect to display. LÄS MER

  4. 3. Uppdatering och visualisering av stadsmodell med stöd av konverterade BIM-modeller

    Master-uppsats, Lunds universitet/Lantmäteri (CI); Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Författare :Leonard Berge; [2018]
    Nyckelord :Physical geography and ecosystem analysis; BIM; GIS; conversion BIM to GIS; visualization of city planning; smart cities; Earth and Environmental Sciences; Technology and Engineering;

    Sammanfattning : Inom samhällsbyggnadsprocessen blir 3D-visualisering och -analys allt viktigare för stadsbyggnation. 3D-visualisering med digitala tekniker ersätter allt oftare 2D-kartor för visualisering av markanvändningen. 3D-visualisering för samhällsplanering behöver använda 3D-modeller av städer och städernas ingående byggnader. LÄS MER

  5. 4. 3D Building Models, Production and Application.

    Master-uppsats, KTH/Geodesi och satellitpositionering

    Författare :PENG ZHANG; [2017]
    Nyckelord :3D Modeling; Laser Scanning; ALS; Modeling; Sketchup;

    Sammanfattning : 3D models have been widely used in many areas since decades ago. When BIM (Building Information Modelling) and VR (Virtual Reality) become popular recent years, 3D model, as an essential part of it has been frequently asked or even required, which is both a challenge and opportunity to a surveying engineer. LÄS MER

  7. 5. Combining Street View and Aerial Images to Create Photo-Realistic 3D City Models

    Master-uppsats, KTH/Geodesi och geoinformatik

    Författare :Caroline Ivarsson; [2014]
    Nyckelord :3D city model; photo-realistic; texture; reconstruction;

    Sammanfattning : This thesis evaluates two different approaches of using panoramic street view images for creating more photo-realistic 3D city models comparing to 3D city models based on only aerial images. The thesis work has been carried out at Blom Sweden AB with the use of their software and data. LÄS MER