CI PA 2003 XIX"' International Symposium, 30 September-04 October, 2003, Antalya, Turkey 
533 
r een the final 
nt cloud data 
the original 
Fig. 7. The 
lei is 12mm 
;es is 13mm. 
:omputed on 
D-model (cf. 
s surface (in 
issing data), 
laries of one 
ndaries this 
/en (epsilon 
during the 
sry useful to 
;o the mod- 
sentation of 
l the help of 
the distance 
culties with 
ct. It would 
igitalisation 
is capability 
lization the 
nage. Then 
lese contour 
inally, these 
i the digital 
is displayed 
Additionally 
line/curve 
re informa- 
etation and 
• the docu- 
: to project 
:e model in 
the statue. 
ned use of 
;e recording 
techniques 
quality 3D 
dmiques all 
sd into one 
ent, 20031). 
ing of the 
y - a very 
l to accept 
e time for 
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 
data. 
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[ORPHEUS/Orient, 2003] ORPHEUS/Orient, 2003. 
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22.6.2003. 
[Pfeifer and Rottensteiner, 2001] Pfeifer, N. and Rotten- 
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[Riegl, 2003] Riegl, 2003. http://www.riegl.com. accessed 
22.6.2003. 
[Ullrich et al., 2003] Ullrich, A., Schwarz, R. and Kager, 
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Measurement Techniques. Zürich, Swizerland. 
ACKNOWLEDGMENTS 
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.