= 14 — 
T2 (pot) e o the a 
  
  
  
  
28 . This « 
| Le 1 with - 
° > Sai (tu obtai! 
20 4 : , The m 
- . ; : a) Br: 
. po: 
12 4 . . in 
: . a ob! 
d e; 
4 - és height strip adjustment ATi 
e fa^ 
; ; i ; 6 dt ais 
res 
fig.5b Dependency of v 2(pol) on number of degrees of freedom pr« 
Lii 
dis 
Fiss. 5a and 5b illustrating the dependency of gg? (pol.) on the number of e 2 nios 
degrees of freedom for planimetric and height strip adjustments respectively, 2 t 
were compiled from the adjustments of 30 adjacent strips of a single project, 
flown with the same camera, at the same scale, executed by the same organisation b) The 
and using the same adjustment procedure, namely a 3rd degree polynomial adjust- me“ 
ment, dis 
These results confirm the expectation that with an increase in the number of 9 
control points, and correspondingly in the number of degrees of freedom in the ! Fur 
polynomial adjustment, o pol.) will tend towards the final accuracy of minor ad; 
control points after adjustment, o check. ob1 
ad, 
d) Bridging distance: the same project data as used in c) above confirmed that 6.: 
g 2 pol.) is independent of at least small variations, in the bridging distance 
(i.e. bridging distances of 1-4 models). c) Exe 
blc 
No reliable conclusions could be drawn with respect to the influence of other of 
parameters, due to the small sample sizes involved. However, indications were present on] 
in the available data that the estimator is influenced by both the image quality € Ope 
and the type of restitution instrument. e T 
the 
The estimator o check as 
  
This final accuracy measure in the triangulation process,determined as the standard 
derivation of the residual coordinate errors at all check points, is a measure of