dynamic of eleven bit as depicted in the histogram In the future the slope change detection of the 
of figure 5. overburden deposits shall be done by means of 
such digital stereo cameras 
In figure 5 the effects of normalising 11bit CCD data 
to 8 bit in connection with an amplification factor 
can be well observed. 
  
Figure 6 DTM of a mountain area near Ronneburg 
In figure 6 the DTM from the mountain area of the 
Erzgebirge near Ronneburg in the south- eastern 
part of Germany is shown. This DTM is derived from 
three flight attitude corrected image strips taken by 
WAOSS in July 1995. By means of this image and 
further images changes in the overburden deposit 
areas of a pitchblende mine shall be detected. 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
WAOSS WAAC 
Focal Length, f 21,7 mm 21,7 mm 
FOV (Across the Track) «go0 «go0 
Optics Spitmo- Russar-96 Spitmo- Russar-96 
Number of CCD- Lines 3 3 
Spacing of CCD's 10,1 mm 10,1 mm 
Convergence Angle 250 250 
IFOV (Quadratic) 3,23 x 107* rad 3,23 x 107* rad 
Elements per CCD- Line 5184 5184 
Elements Spacing 7 um 7 um 
According to Orbit Data Hn = 250 km H = 3 km (v = 200 km/h) 
Swath Width (Nadir CCD) 420 km 5,184 km 
Min Ground Resolution 
- in Line Direction 80m 1,0m 
- in Trajectory Direction 80m 1,0 m 
Radiometric Resolution 8 Bit 8 Bit 
Spectral Channel 
- Nadir 470...670 nm 580...770 nm 
- Forward,Backward 580...770 nm 470...670 nm 
Data Compression Factor 2...20 2...20 
Data Compression Method DCT- JPEG DCT- JPEG 
Computer Performances 20 MIPS 20 MIPS 
Output Science Datarate 100...500KBit / s 100KBit / s...24MBit / s 
Physical Dimensions L:373 x B.190x H:213 mm L:285 x B:190 x H:202 mm 
Mass 8 kg 4,4 kg 
Power 18 W 15W 
Table 1 
International Archives of Photogrammetry and Remote Sensing. Vol. 
174 
XXXI, Part B1. Vienna 1996