From figure 2 one main difference between the 
images taken from an airborne and a spaceborne 
camera can be observed: 
The geometric correction of the attitude dependent 
failures is one of the main concerns for images 
taken from airborne cameras. Images taken from 
spaceborne cameras are supposed to have far less 
effects coming from attitude fluctuations. 
But in the actual experiment arrangement, WAOSS 
is mounted on a passive platform with fibre gyros to 
Figure 3 The corrected image of figure 2 
measure all three angular directions of WAOSS 
movements. The gyros are mounted closely to the 
sensors. Furthermore, the data: from an GPS 
receiver and from the ARINC- data of the 
aeroplane’s INS are included in the house keeping 
data of the camera. These data are very important 
for the reconstruction of the CCD- line orientation. 
  
  
& Ox1D* T T T T I T T T 
5.0x10* 
4.0x1D 
3.0x1D 
  
  
2.0x10* 
  
  
  
  
1.0x1D 
  
  
FTTITTTTTTTITTTEETTTITTITTTITTTTTIT IU ui D eps eret rn 
LLLLLLLLLLLLLLLELL LLL LLL LEE rc cc ccn Dor rc rn Eo r rcu 
  
  
  
  
8 
Figure 5 The histogram of figure 4 
1000 1500 
3 
International Archives of Photogrammetry and Remote Sensing. Vol. XXXI, Part B1. Vienna 1996 
€» OY 6A A peed