about 
It is im 
on ime 
able ge 
directi 
ages, £ 
fore el 
test ca 
flight | 
hypotlt 
dure. 
the sal 
be gec 
somew 
Figure 2: Image fhn717, showing all detected corners and Figure 3: Image fhov1627, showing all detected corners and The ex 
epipolar lines with image fhn715 epipolar lines with image fhn715 param: 
not all 
image 
rors. 
param 
adjust 
signifi 
above. 
one ac 
angle: 
same | 
tional 
OUS SC 
the pc 
possib 
4 
The p 
inform 
Figure 4: Image fhn717, showing corners after preliminary Figure 5: Image fhov1627, showing corners after prelimi- Howe 
filtering (crosses) and the point match step (squares). For nary filtering (crosses) and points after the point match step assum 
this image, they were the same points. (squares). match 
spond 
that v 
  
By us 
the cc 
geome 
ing th 
condit 
residu 
Our a 
up to 
descri 
using 
As inc 
and c 
sumpt 
For ir 
discus 
the ro 
Figure 6: Image fhn717, showing points after the right angle Figure 7: Image fhov1627, showing points after the right respoi 
tests (crosses) and final point matches (squares). For this angle tests (crosses), and final point matches (squares). (Figui 
Image they were the same points. is not 
   
nor w 
v Thee 
valid 
532 
International Archives of Photogrammetry and Remote Sensing. Vol. XXXI, Part B3. Vienna 1996