nbul 2004 | International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XXXV, Part B3. Istanbul 2004 
inction to 
etc. using 
nd three 
Juired the 
nd higher 
construct 
del based 
icing with 
   
uildings 
  
Figure 9. Generated true orthophoto same area as figure 8 Figure 11. Generated true orthophoto same area as figure 10 
A raw image around narrow streets is shown in figure 10. In 6. CONSIDERATION 
figure 10, several streets (width 6 meter) are completely 
covered by building walls. Also Narrow Streets between 
building and building are too dark in the image for observation : ; ; e : 
objects on the street even they are shown. It is possible to reduce the occlusion caused by buildings by 
A generated true orthophoto is shown in figure 11. Narrow increasing the overlap and side lap. The number of photographs 
d streets are clearly expressed. Also after color and contrast taken ina certain time frame has nothing to do with the increase 
v Street adjustment, it gives us sufficient image quality along the narrow of cost in the case of DMC. ; 
street for plotting work. These images were taken in winter In this study, we made a photography plan with 80% overlap 
season. So those images prove that system provides sufficient and 80% side lap. In the stage of consideration, we compared 
the case of 60% overlap and 30% side lap with the case of 67% 
6.1 Photography plan using high overlapping ratio 
  
tification 
dd color depth almost all seasons. : ii. 
automatic overlap and 67% side lap applicable to mapping job. Usable 
extent of photograph in each case is shown in figure 12. 
8. 
Figure 9. 
; can be 
; 25times 
difficulty