dy == 
+ 
Paramet 
dx = à, 
dy 7 7 
  
q = 
r = 
Paramet 
dx = à, 
dy = bi 
Paramet 
dx = ag 
dy = 81 
wher 
  
Paramet: 
dx = a: 
dy = bi: 
Paramett 
dx 7 cy: 
dy * c4. 
dx 7 bi: 
dy mb, 
where Tr 
Thes 
program 
paramete 
restrict 
subrouti 
investi; 
time. 
  
RESULTS 
Phot 
simultar 
six sets 
photogre 
photogr: 
testfie] 
determi: 
Our