KEN 
À x 
  
st rain 
EE TEE BEES 
  
  
  
  
  
  
a i V RE 
EAN 
RE Tem 
EE 
eese ttim toa otio S Rm ie e ont 
ied MM A EISE pe Ea 
  
  
BE Ee x pie nate 
Veo AM iei p: 
ie EEE 
  
  
  
  
aeo Fen = 
EL 
  
2 3 ; TE a urine Te me TT TT pat 
ii a te di SELES PAS a 0 ES LAND Lu enr iS dts done E Se A. zd LS 
aia ia sia A i 
  
  
in MR 
  
       
   
   
   
     
    
   
   
    
   
    
  
     
   
    
  
  
  
  
     
   
   
        
oi = the longitudinal tilt of the photograph 1 
by; — the machine ordinate of the air station i 
bz; = the vertical component of the base 
Bi = the proportion of the base bi and b; + , of the pairs i—-1, 
i and i, i +1: 
bi + 
ni i k 1 
ei 
bi 
b's = the distance in the machine system between both the 
x-transfer points of the model i—1, i 
bi= Xi —Xi;- 1 
To the photographs of the set are conferred the following distinetion 
indexes 
— 1 0 1 9 n—1 n n4] 
b, hb. b. Du bad 
  
The system of coordinates and orientations elements used in this 
paper is the system of the Stereocartograph IV (see Fotogrammetria XIT, 
1955-56, pag. 8). 
3. Weight and correlation numbers. 
3.—1. The application of the law of the propagation of errors to the se- 
quence of operations carried out by the relative orientation with bz, with the 
help of the symbolic calculus, (Roelofs, paper Appendix III) leads us to 
the following matrix of weight and correlation numbers of the relative 
orientation elements : 
Table 1 
  
Q boi Dxi bi bz; boi 
  
boi A, A, X; = se 
bx; A 6 A 2 A 5 — — 
byi A 4 A 5 X 2 — evene 
boi —MÁ mm —Àá A, As 
  
  
  
  
  
  
  
  
  
  
  
  
à