Oyama, Yoichi 
  
6 RESULT AND DISCUSSION 
6.1 Measurement of protruding ground objects 
The effects confirmed in the measuring experiment of protruding objects are as follows: 
1)It is possible to confirm the area of lower limit surface at a glance (Figure 1). 
2) It is possible to determine whether the object is over or under the surface by rendering the surface from the upper 
viewpoint (Figure 2). 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
Figure 2 : Building protrusion of which is confirmed by rendering 
  
  
1100 International Archives of Photogrammetry and Remote Sensing. Vol. XXXIII, Part B7. Amsterdam 2000.