Full text: New perspectives to save cultural heritage

CI PA 2003 XIX"' International Symposium, 30 September-04 October, 2003, Antalya, Turkey 
r een the final 
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the original 
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;es is 13mm. 
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Figure 8: Visualization of the contour of two lions (digi 
tized in one image). The points on the contour are con 
nected with the projection center of the digital image. This 
results in a general cone. 
data acquisition. Therefore the model of the statue 
has holes, which cannot be closed without any further 
measurements. These holes and additionally random and 
gross errors in the laser scanner data generate problems 
during the automatic modelling process (cf. Sec. 4). 
Nevertheless we were able to determine a smooth surface 
model of the statue. Improvements of this model would 
be possible with the help of additional image information. 
With the help of this additional data further geometric 
details of the sensed object can be modelled. The goal for 
further research work in the area of 3D-modelling will be 
the development of adequate methods for the combined 
surface determination of laserscanner data and image 
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[Pfeifer and Rottensteiner, 2001] Pfeifer, N. and Rotten- 
steiner, G., 2001. The Riegl laser scanner for the sur 
vey of the interiors of Schönbrunn Palace. In: Grün 
and Kahmen (eds), Fifth Conference on Optical 3-D 
Measurement Techniques. Vienna, Austria, pp. 571 
[Riegl, 2003] Riegl, 2003. http://www.riegl.com. accessed 
[Ullrich et al., 2003] Ullrich, A., Schwarz, R. and Kager, 
H., 2003. Using hybrid multi-station adjustment for 
an integrated camera laser-scanner system. In: Grün 
and Kahmen (eds), Sixth Conference on Optical 3-D 
Measurement Techniques. Zürich, Swizerland. 
This research has been supported by the Austrian Science 
Foundation (FWF) under Project No. P15789 and by the 
innovative project “3D technology” of the Vienna Univer 
sity of Technology.

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