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Bogdahn, J
Languages: English
Types: Doctoral thesis
Three-dimensional digital representations of cities are widely used today, from urban \ud planning to navigation systems, emergency response and to energy and flood simu- \ud lations. Many of these scenarios can be served by one multipurpose 3D city model \ud that has the semantic and attribute information depth that is required (besides the ge- \ud ometrical detail). These multipurpose models do not only represent the geometrical \ud properties and textures and materials, which would be sufficient for pure visualization \ud of the urban space, they also model semantic entities like walls, roofs, ground, etc. And \ud all these parts , as well as the buildings, as specific, identifiable entities, can be linked \ud to additional information and data sets from other sources.\ud However, although these models have the required information-richness and can be \ud used beyond pure visualization, one part of these models is still treated the same way \ud as for pure visualization models: the textures. Textures in most of today's city models \ud are still a tool to enhance the photo-realistic appearance. The primary task of the \ud textures is still to add the 'naturalistic' elements that are not modelled in geometry. \ud These elements are mainly located in the fagades, namely windows, doors, signs, fire \ud escapes and many more.\ud The presented work investigates how textures can be used for information visualization, \ud which is more useful for the aforementioned multipurpose city models. A new texture \ud concept is presented that is based on flexible content, which is managed in layers. In \ud this way it is possible to adapt the appearance of buildings (especially fagades) to the \ud actual scenario. The concept also allows the integration of additional information into \ud the fagade, enhancing the 3D city model. In this way it is possible to generate scenario \ud specific fagade textures integrating the relevant information into the texture content.
  • The results below are discovered through our pilot algorithms. Let us know how we are doing!

    • URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber= 1335266 17, 77 Gaisbauer, C. and Frank, A. U. (2008), Wayfinding model for pedestrian navigation, in 'Proceedings of the 11th AGILE International Conference on Geographic Information Science', University of Girona, Spain. 158 Gartner, G. (2004), Location-based mobile pedestrian navigation services the role of multimedia cartography, in 'International Joint Workshop on Ubiquitous, Pervasive and Internet Mapping, Tokyo, Japan', ICA. 180 Haegler, S., Wonka, P., Arisona, S. M., Van Gool, L. and Muller, P. (2010), 'Grammarbased encoding of facades', Computer Graphics Forum 29(4), 1479-1487.
    • URL: http://dx.doi.0rg/10.1111/j.1467-8659.2010.01745.x 168, 190 Igarashi, T. and Cosgrove, D. (2001), Adaptive unwrapping for interactive texture painting, in 'Proceedings of the 2001 symposium on Interactive 3D graphics', I3D '01, ACM, New York, NY, USA, pp. 209-216.
    • URL: http://doi.acm.org/10.1145/364338.364404 79 J. Haist, V. C. (2005), The w3ds-iinterfaces of cityserverSd, in 'Proceedings of the 1st International Workshop on Next Generation 3D City Models'. 24, 26 Kada, M., Klinec, D. and Haala, N. (2005), Facade texturing for rendering 3d city models, in 'ASPRS Conference 2005', pp. 78-85. 17, 77 Laycock, R. and Day, A. (2006), 'Image registration in a coarse three-dimensional virtual environment', Computer Graphics Forum Volume 25(1), pp. 69-82. 16 Lee, S. C. and Nevatia, R. (2004), Extraction and integration of window in a 3d building model from ground view images, in 'Computer Vision and Pattern Recognition, 2004. CVPR 2004. Proceedings of the 2004 IEEE Computer Society Conference on', Vol. 2, pp. 11-113-11-120 Vol.2. 19, 196, 197 Legakis, J., Dorsey, J. and Gortler, S. (2001), Feature-based cellular texturing for architectural models, in 'Proceedings of the 28th annual conference on Computer graphics and interactive techniques', SIGGRAPH '01, ACM, New York, NY, USA, pp. 309- 316.
    • URL: http://doi.acm.org/10.1145/383259.383293 18 Lipp, M., Wonka, P. and Wimmer, M. (2008), Interactive visual editing of grammars for procedural architecture, in 'ACM SIGGRAPH 2008 papers', SIGGRAPH '08, ACM, New York, NY, USA, pp. 102:1-102:10.
    • URL: http://doi.acm.org/10.1145/1399504.1360701 18 Muller, P., Wonka, P., Haegler, S., Ulmer, A. and Van Gool, L. (2006), 'Procedural modeling of buildings', ACM Trans. Graph. 25, 614-623.
    • URL: http://doi.acm.org/10.1145/1141911.1141931 18 Ripperda, N. and Brenner, C. (2007), Data driven rule proposal for grammar based facade reconstruction, in U. Stilla, H. Mayer, F. Rottensteiner, C. Heipke and S. Hinz, eds, 'Proceedings of PIA07 - Photogrammetric Image Analysis', Vol. Volume 36, Part 3 / W49A of The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Science, pp. 1-6. 19 Stappers, P. J., Gaver, W. and Overbeeke, K. (2003), Psychological Issues in the Design and Use of Virtual and Adaptive Environments, Lawrence Erlbaum Associates, Inc., chapter Beyond The Limits Of Real-Time Realism: Moving From Stimulation Correspondence To Information Correspondence, pp. 91-111. 35
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  • Discovered through pilot similarity algorithms. Send us your feedback.

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