A 
Fig. 3a: Orthoimage and contours, 
surface reconstruction using all 4 images 
(upper left: surface reconstruction by 3 images only!) 
orthoimage scale: 1:300 
equidistance of contours: 0.2m 
< Fig. 3b: Standard deviations oz of DTM, fig. 3a 
+10em 
  
  
Fig. 3c: Windows (200 x 200 pixels, contrast enhanced) of 
the original aerial images, corresponding to the marked area 
Ocm in fig. 3a 
>, according to 
residual image 
  
Figure 3: Example 'Highway' 
761 
International Archives of Photogrammetry and Remote Sensing. Vol. XXXI, Part B3. Vienna 1996