International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XXXV, Part B5. Istanbul 2004 
  
On the other side, photogrammetry has some advantages: 
* . Colored information avaible 
* Unlimited range 
* Shorter data acquisition times at the site 
+ Higher resolutions are avaible 
+ Low price of the images 
* Possibility to use historical imagery (Wehr, 1999) 
2. USED HARDWARE, SOFTWARE AND 
STUDY AREA: 
2.1 Used Hardware 
2.1.1 Cyrax Laser Scanner 
In this study Cyrax 2500 Laser Scanning System had been used. 
Cyrax 2500 Laser Scanning System can get 1000 points per 
second and its point diameter is 6mm. 
The most important technical details of the used scanner are 
given below: 
+ Range upto 150m 
+ Field scanning width of 40? x 40° 
* . Hundred of thousand points in 5-15 min. 
* 6mm point accuracy (a) 50m 
* «I5 mm resolution(point cloud density) (2250 m 
* 6mm point diameter (à) 50 m.(Vozikis, 2004) 
2.1.2 Pentax PAMS645 Terrestrial Metric Camera 
In this study the stereo photographs had been taken by using 
Pentax PAMS645 metric camera. Focal length of camera is 45 
mm. 
2.1.3 PHODIS Digital Photogrammetric System: 
Digital photogrammetry requires that if conventional 
photographs are being used the diapositives must be scanned to 
create digital files. (Bailiy, 2002). In this study the photographs 
had been scanned by using UMAX Powerlook II scanner with 
2400 dpi (10 microns) resolution. 
The PHODIS System had been used for photogrammetrical 
evaluation in this study. PHODIS is a UNIX based digital 
photogrammetrical system. 
2.2 Used Software: 
2.2.1 Cyclone Software: 
Cyclone software is a Cyrax scanner solution for data 
processing and modelling. This software has data completion, 
meshing, 3D modelling tolls. 
2.2.2 MicrostationSE/V8 Software: 
Microstation is a classic CAD Software. The model that had 
been done for photogrammetric system had been produced by 
Microstation SE/ V8 . 
2.3 Study Area: 
The building of Karlsrube University Photogrammetry and 
Remote Sensing Institute No: 8 had been modelled by laser 
scanning method and close range photogrammetric method. 
3. USED METHODS 
3.1 Photogrammetrical Evaluation 
Modelling of study area had been done by stereo evaluation. 
Stereo photographs pairs had been taken by metric camera at 
18m. range (Figure 1). 
  
Figure 1. Stereo photograph pairs. 
Interior orientation process had been done with error of 13 
microns. The accuracy of exterior orientation is shown in 
Table 1. 
  
dx (m) dy (m) | dz (m) 
0.045 0.041 0.031 
  
  
  
  
  
  
Table 1. The accuracy of exterior orientation 
The coordinate system of laser scanned study area had been 
used as a reference coordinate system. (Figure 2) 
  
Figure 2. Measured Control Points for exterior orientation 
3D drawing of study object had been created interactively. 
Figure 3. shows 3D design of the object. 
  
   
Internal 
  
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