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By Norbert Haala, Jan Böhm and Darko Klinec


Within the paper a low-cost system for the provision of georeferenced terrestrial images in urban environments is presented. Based on an image with approximate exterior orientation from a low-cost GPS and a digital compass and a 3D CAD model of a visible model as provided from an 3D virtual city model, the exact location of the building in the image is detected automatically and used for a refined orientation of the image. The work presented in this paper is part of a project aiming on the development of a mobile device, which enables access to location based services in a complex urban environment. The intuitive access to object related information is realised by so-called telepointing. For that purposes a spatial model of the user’s environment is mapped to the oriented image on order to allow the access to object related information by pointing to the respective image sections. The camera used for image collection is integrated to a mobile device, which has to be capable for data transmission in order to provide the required location based services. Since the provision of location based services currently is one of the most promising markets for the application of spatial data as they are collected by photogrammetric techniques, these applications will also be discussed briefly within the paper. 1

Topics: KEY WORDS, Navigation, Orientation, Augmented Reality, Generalisation, Visualisation ABSTRACT
Year: 2011
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