CIPA 2003 XIX th International Symposium, 30 September - 04 October, 2003, Antalya, Turkey 
5. CONCLUSIONS 
Istanbul is one of most important cities in the world and 
therefore was always the focus of the people. The first 
silhouette project was produced in 1998 and the second in 2003. 
These projects are the most important documents to 
protect the structure of the old city parts. The best way to obtain 
these important documents is digital photogrammetric method. 
By the first project the mono images are used the silhouette 
points are measured photogrammetrically on images and by the 
second project on the stereo models. The both maps are 
compared manually, in the future works this comparison will be 
done automatically by computers. The efforts are going to 
this direction. And this will be a powerful tool to protect the old 
structure of ancient cities. 
REFERENCES 
Altan, O., Kiiliir, S., Toz, G., Seker, D., Z., Duran, Z., Ergiin, 
B., Çelikoyan, M., 1999. A different Application of 
Terrestrial Photogrammetry Silhouette of ancient City Parts 
ISPRS WG V/5, V/2 Part 5W11, 7-9 July 1999, Thessalonica. 
Kiiliir, S., 1998. Kalibrierung und 
Genauigkeitsuntersuchung eines digitalen 
Bildaufnahmesystems, 16. Jahrestagung der Deutschen 
Gesellschaft für Photogrammetrie und Fernerkundung, 
München. 
Toz, G, Küliir, S., 1999. Rapid Documentation of Earthquake 
damages by means of digital photogrammetry, 
Photogrammetrie Fernerkundung Geoinformation ( PFG ) 
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