its image 
he axis of 
ylinder di 
axis of the 
he value . 
ternal no 
ue off 
image q 
lens and 
g out of 
isalign 
es not 
alignment 
of no im 
'amera,. 
sonditions 
rect attri 
ection. 
hich the 
he axes 
© Ÿ, Va 
1, the ima 
8 assumed 
>blem of a 
hility of 
vhich are 
n. For the 
cylinder 
nes and in 
o camera 
n error de 
npressed 
nditions 
ior nodal 
of the ca 
ion axis; 
tions of 
FIG. 2 ELEMENTS NECESSARY 
FOR THE KNOWLEDGE OF THE INTE 
RIOR ORIENTATION IN THE TYPICAL 
CAMERA (UITH IMC . 
  
a» reference parameter when y-o 
M, Ma = reference marks when y-o 
  
(9) 
  
  
  
  
  
  
FI6.3 IMC MOVEMENT AND SCANNING DIRECTION AS ASSUMED IN PAPIR 
¢- IMC movement ; d: Scanning direction : e- fli ht direction ; 
cilindrical photo ; g- positive pan. foto spread Tug f due ion; f = positive 
Bz 
  
  
  
  
  
  
  
  
  
  
  
  
§<0 ¥=0 y>0 
ive fo 9" [6.4 PLATE COORDINATES 
s DEFINITIONS 
ix^ a = flight direction 
  
  
    
FI6.5 REFERENCE RECTANGULAR SYSTEMS 
Te -{angent point for the Eulerian reference system ; yn = axis towards North ; 
Xu:axis towards East ; Ag: approximate flight azimuth ; er< rotation of the xr yr 
axes with respect to x» Yn axes ; a= azimuthal angle bet ween the xr Zr plane 
and the vertical plane containing the speed vector v of the aircraft ; Ne=nadi. 
ral point of the pan. photo when the scanning angle is 0.