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Y D 
  
Fíc.1 Imaging configuration in 
camera calibration 
1 2 3 4 
y 1 
| e K 7190 | b. | 
kp ox | x =90° | æ =270° 
Le 
10. 9 8 7 6 
FRONT VIEW 
ul 
  
  
  
TARGET FIELD 
  
  
  
2,9 | 4,7 
3,8 
PLANE VIEW 
Fig.2 Four solutions retrieved 
from the coplanarity condition 
205