geometry in its normal case and general case configuration, 
RESULTS 
A series of experiments were carried out for the close range 
quadrustational system. Full details of all experiments are 
available (Babaei-Mahani,1981). For this report,however, the 
results of three experiments only are demonstrated. 
The average RMS (root mean square error) of 24 points in each 
stereopair after processing is given in the following tables. 
Table 1: The normal case and general case with equal 
vertical and horizontal bases. 
  
  
  
Stereb: Normal Case General Case 
pairs (mm) Rays_Optimisation | Planes Optimisation 
X Z X am). Y 3-2 X (mm) Y Z 
  
5,-5 0.19: .0:33-:0.58 0.21: 0:31 -0.43 0.20: 0.31 10.43 
3 4 0.24. 0.33. 0.66 0.17 0,24 0.531 0,17. 0,23 0.51 
5,-5 0,31 0:21 0.55 0.26 0.09 0.43 0.26 0.09 0.43 
5,754 0.26: 0.29. 0:68 0.31. 0:29. 0.60 Q.33. 0.29. 0.61 
  
  
  
  
Ave 0.25: 0:29 0,62" | 0.24 0:23’ 0245 | 0.24 -0:23^^0:49 
51527 10.16 10:19°16728"°P0.17 ‘0.150226 | 0215 7071520026 
354 
  
  
  
Table 2: Equal and different bases of general quadrustational 
  
  
system (By = horizontal base, B, = vertical base) 
Object B,/H = 0.5, B,/H = 0.5 B,/H = 0.5, B,/H = 0.3 
distance (mm) (mm) 
(m) X V Z X Y Z 
  
0.13 0.17 0.13 0.19 0.09 0.11 
0.16 0.17 0.14 0.12 0.21 0.16 
  
  
  
  
  
Table 3: Convergent case of quadrustational system 
  
Convergent angle 
  
  
  
  
  
towards centre R.M.S (mm) 
(degrees) X Y Z 
O 0.10 0.13 0.13 
5 0.19 0.14 0.12 
15 0.23 0.13 0.12 
30 0.31 0:11 0.29 
45 0.27 0.24 0.31 
  
137