CIP A 2003 XIX th International Symposium, 30 September - 04 October, 2003, Antalya, Turkey 
The signalised points with size of 10 cm x 10 cm were 
established on Fatih mosque facades surfaces (Figure 2). In 
addition, natural points coordinates were measured on some 
region of facades. The coordinates of signalised points and 
natural points were measured with Topcon total station. 
Approximately 350 signalised control points and natural points 
were measured for stereo restitution. During this measurement, 
local coordinate frames were defined for each facade. The X- 
axis of coordinate frames was parallel to the facades. 
Figure 2. The signalised points 
3. PHOTOGRAMMETRIC IMAGE ACQUISITION 
The stereo photographs of Fatih Mosque facades were taken in 
normal case with semi-metric Rolleiflex 6008 of Department of 
Photogrametry and Remote Sensing, Yildiz Technical 
University (Figure 3). The stereo photographs of some facades 
were taken in parallel-averted case because of limitations due to 
trees and other buildings (Figure 4). Two different objectives 
with focal length of 80 mm and 150 mm were used for 
photogrametric image acquisition. During to image acquisition 
base to distance ratio was selected between 1/7 to 1/10 for 
better depth interpretation. Approximately 230 photographs 
were taken at different scale. The whole taken images of Fatih 
Mosque facades have been scanned with 21 pm pixel size as 
RGB. 
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Figure 3. The normal case photograph of Fatih Mosque 
northeast facade 
Figure 4. The parallel-averted case photograph of Fatih Mosque 
southeast facade 
4. STEREO RESTITUTION 
Stereo photogrammetric restitution is traditional approach for 
close range photogrammetry. In Fatih Mosque documentation 
project, digital photogrammetric workstation is used for stereo 
restitution. Stereo plotting is preferred because of dept 
differences on Fatih Mosque facades. 
For stereo model generation and stereo plotting digital 
photogrammetric workstation of Department of Photogrametry 
and Remote Sensing, Yildiz Technical University have been 
used. Digital photogrammetric workstation has two separate 
monitors. One monitor is used for stereo display and second 
monitor is used for additional information and graphical user 
interface. Stereo viewing is achieved by liquid crystal glasses 
and the infrared emitter on top of the monitor. 3D pointing 
62 
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