M 
900 4 
8004 
TOO - 
6004 
5004 
400 4 
3004 
2004 
1004 
  
  
v 
T T T T T T T 
5 10 15 20 30 40 50 
Diagram 10. Standard errors of the x- and y-coordinates in model triangulation. Can- 
tilever extension. s, l. 
2.3. Error distribution after bridging 
We assume the transformation to be performed with the aid of two 
control points, one in each end of the strip. 
The procedure for the determination of the residual errors of the 
center points of the photographs along the strip after the transformation 
is exactly the same as was demonstrated above for stereo-radial triangu- 
lation, see under 1.224. 
The accuracy (standard error) of the corrected x- and y-coordinates