Kunii, Yoichi 
  
3 APPLICATION FOR A BULDING 
3D modeling for a building was performed by above procedures in this paper. Sequential images for a building were 
taken while a video camera was moving in horizontal direction, and the line tracking was performed using the 
sequential images. Figure 11 shows the first frame and the last frame for the sequential images, and base-depth ratios 
for the stereo image is 0.25. From the result of line tracking, 50 lines were extracted for the first frame, and 45 lines out 
of those lines were tracked correctly from the first frame to the last frame. Figure 12 shows the result of line tracking, 
Consequently, 3D spatial data of the tracked lines were calculated by the combined adjustment, and 3D modeling for 
the building was performed. Figure 13 shows the 3D model of the Building. 
    
    
  
(a) First frame x (b) Last frame F 
Figure 11. Sequential image for the building 
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(a) First frame 
(b) Last frame 
Figure 12. Result of line tracking 
  
(a) Wire frame model (b) Texture mapping model 
Figure 13. 3D Model of the building 
  
464 International Archives of Photogrammetry and Remote Sensing. Vol. XXXIII, Part B5. Amsterdam 2000. 
  
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E-Jt m «e C090 x 
BD UW NY pm