CIP A 2003 xix"' International Symposium, 30 September - 04 October, 2003, Antalya, Turkey 
some details on the photos such as stone'Comers etc. have been 
used as control points (Figure 6) 
Figure 5. Aerial photo taken from the balloon and a control 
point zoomed in. 
Figure 6. Terrestrial photo 
3. PHOTOGRAMMETRIC EVALUATION 
For photogrammetric evaluation, Pictran software has been 
used. Exterior orientation of the aerial imagery was 
unproblematic due to the position of the camera (almost 
vertical) and the coordinate accuracy of control point. The 
control points have been measured with 2-3 mm accuracy in X, 
Y and ~4 mm. in Z direction. The geometric accuracy of 
evaluation results for aerial images was about 4 cm. 
Exterior orientation was fine also because of the geometric 
accuracy of control points and their distribution over the 
images. Using only the ground control points, exterior 
orientation was already fine but some tie points have been 
measured for getting better stabilization in the aero- 
triangulation. 
Difficulty of this study was the exterior orientation of terrestrial 
images. In some parts of the study area, the images had to be 
taken very closed to the object of interest. That caused, that the 
single image covers a small area. Therefore many control points 
on the facades had to be measured. Nearby, the obliquity of the 
photos forced some additional problems. In that case, the 
exterior orientation of some facades have been a big work and 
needed long. 
By photogrammetric evaluation, over 100.000 points have been 
measured three dimensionally. This step was the biggest work 
of the whole study. The measured 3-D coordinates of the stones 
and their contours have been transferred in CAD-Software. 
Editing and some additional cartographic works have been done 
using AutoCAD. 
At the end of the study, following maps with different scale 
mentioned below have been created. 
Layout plan (1:250) 
Detailed plan (1:100) (Figure 8) 
Drawing of 12 facades (1:50) (Figure 9) 
5 Profiles (1:50) 
4. FURTHER ACTIVITIES 
The processing of the data is at least a big work, especially if 
we use point-based systems. The possibilities of PhoTopoL 
Software are, to be able to digitise directly lines in 3D and to 
control them in stereo. This is possible for aerial images as well 
as for terrestrial photographs. With some limits to resolution 
and accuracy, also oblique photos can be processed. Further on, 
the orthophoto production in such a system is possible, which 
reduces the need to map all lines and increases the information 
on the map dramatically. An example is given below. Such 
tools are the key for complex 3D modelling up to the creation 
of visualisations and animations. This will be tested. 
In this frame, the data can be stored in GIS application as well 
to be part of web-based GIS-application for tourist affairs and 
as well as for archaeological reconstruction aims. 
Figure 7. First results of edge mapping in PhoTopoL with 
computed orthophoto