rrections 
Radial 
ments and 
  
S: 
Formulas 
The grid in positive position. 
  
  
  
  
  
J 
5 E 53 54 55 
4 42. 43 44 45 
330 
32 33 34 35 
y 324 335% X 
230 
21 22 23 e4 25 
M 12 I$ 4 15 
  
  
  
  
  
The points 23a, 558, 52b and 33b have been used only for the 
determination of the radial distortion. 
Correction equations: 
, . ^2 Fb. s 
XY =s- dx -Xdz «i-hak-(14X.)hdo - KA hdu - dx 
X o e 9 c c 2 7 p 
, , 2 2 "OA 
v =-dy -Zdz - EM âu - (14 )hdu - XX'hàg - dy 
y c c c? c? 
where 
iX = Xmeasured ^ Xgiven 
dy = y 
measured ~ Ygiven 
dx and dy are often denoted x and y in the formulas. 
   
  
RR 
= EEE ee 
ep à