Generation of 3D/4D Photorealistic Building Models. The Testbed Area for 4D Cultural Heritage World Project: The Historical Center of Calw (Germany)
3D/4D photorealistic models present great advantages in different applications like preservation of the cultural heritage, urban planning, public management, etc. For getting precise and reliable models, the geometries should be accurate and the textures wrapped with optimal quality imagery. The systems of terrestrial laser scanner (TLS) are one of the most reliable techniques for capturing accurate data. However, these systems have some drawbacks like the missing data in certain areas or the lack of information about textures. Photogrammetric images contain the required textures and can be used to generate dense point clouds by dense image matching. In this way, the combined use of photogrammetric images and laser systems is symbiotic, being thus able to exploit the advantages of both technical methods. If the textures are wrapped using historical photos, the temporal dimension is incorporated to the model (4D), making it possible to reconstruct the past. However, historical photos have some additional drawbacks like the lack of metadata and the fact that they have been captured from only a few positions.
KeywordsPoint Cloud Iterative Close Point Terrestrial Laser Scanning Iterative Close Point Historical Center
The results published in this work are supported by the European project 4D-CH-World framed within the 7th EU Framework Programme PEOPLE-2012-IAPP.
- 3.Rothermel, M., Wenzel, K., Fritsch, D., Haala, N.: SURE – surface reconstruction using images. Pres. Paper, LC3D Workshop, Berlin (2012)Google Scholar
- 4.Luhmann, T., Robson, S., Kyle, S., Harley, I.: Close Range Photogrammetry: Principles, Techniques and Applications. Whittles Publishing, Caithness (2006)Google Scholar
- 5.Bundesamt für Kartographie und Geodäsie webpage. http://www.bkg.bund.de. Accessed 19 August 2015
- 6.Europeana webpage. http://www.europeana.eu. Accessed 19 August 2015
- 7.LEICA company: Product Specifications of the Leica ScanStation P20. http://www.leica-geosystems.com/downloads123/hds/hds/ScanStation_P20/brochures-datasheet/Leica_ScanStation_P20_DAT_en.pdf. Accessed 19 August 2015
- 8.ZEISS company: Technical Specifications of the Lens Biogon T* 2,8/21 ZM. http://www.zeiss.com/camera-lenses/en_de/camera_lenses/zeiss-ikon/biogont2821zm.html. Accessed 19 August 2015
- 9.Landesamt für Geoinformation und Landentwicklung of Baden-Württemberg webpage. https://www.lgl-bw.de. Accessed 19 August 2015
- 10.Bustamante, A., Fritsch, D.: Digital preservation of the Calw market by means of automated HDS and photogrammetric texture mapping. Master thesis in Geomatics Engineering, University of Stuttgart (2013)Google Scholar
- 11.Li, Y.. Fritsch, D., Khosravani, A.: High definition modeling of Calw, badstrasse and its Google earth’ integration. Master thesis in Geomatics Engineering, University of Stuttgart (2014)Google Scholar
- 12.Han, L., Chong, Y., Li, Y., Fritsch, D.: 3D reconstruction by combining terrestrial laser scanner data and photogrammetric images. In: Proceedings of the Asia Assoc. of Remote Sensing, Nay Pyi Taw, Myanmar (2014)Google Scholar
- 13.Fritsch, D., Klein, M.: Augmented reality 3D reconstruction of buildings – reconstructing the past. Int. J. Multim. Tools Appl. (2015). (under review)Google Scholar
- 14.Balsa-Barreiro, J., Pere, J., Lerma, J.L.: Airborne light detection and ranging (LiDAR) point density analysis. Sci. Res. Essays 33, 3010–3019 (2012)Google Scholar