Working with New York data as a representative and instructive example, we fuse aerial ladar imagery with satellite pictures and Geographic Information System (GIS) layers to form a comprehensive 3D urban map. Digital photographs are then mathematically inserted into this detailed world space.  Reconstruction of the photos' view frusta yields their cameras' locations and pointing directions which may have been a priori unknown. It also enables knowledge to be projected from the urban map ontogeoregistered image planes. For instance, absolute geolocations can be assigned to individual pixels, and GIS annotations can be transferred from 3D to 2D. Moreover, such information propagates among all images whose view frusta intercept the same urban map location. We demonstrate how many data mining and visualization challenges (e.g. identify all photos containing some stationary ground target, observe some structure frommultiple perspectives, quantify match between two pictures, etc) become mathematically tractable once a 3D framework for analyzing 2D images is adopted. Finally, we close by briefly discussing future applications of this work to photo-based querying of urban knowledge databases.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    3D Organization of 2D Urban Imagery


    Contributors:


    Publication date :

    2007-10-01


    Size :

    2619034 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English




    Monitoring Urban Development Using High Resolution Imagery

    Tarabzouni, Dr. Mohamed Ahmed | AIAA | 2004



    ERS-SAR imagery for urban climate studies

    Basly, L. / European Space Agency | British Library Conference Proceedings | 1997


    Automated Controlled Imagery Capture in Urban Environments

    Teller, S. / International Society of Information Fusion / Institute of Electrical and Electronics Engineers | British Library Conference Proceedings | 2002