129
r- LFC
r~
“I
1
MC
1
1
1
KFfl 1000
1
1
1
1
1
1
j
. ..RMK
j
1
1
1
1
1
1
1
1
TM !
L.
'spot
1
1
1
1
1
1
L
KATE
700J
- Z00 kn -
figure 1: covered area
Not only the geometric conditions are important. For mapping the object identification
is also important. The visibility of objects is depending upon the radiometric and the
spectral resolution.
MC
1 LFC
KATE 200
! KFA 1000
MKF 6
TM
SPOT
false color
high
450-520
pan
-480-580
definition
500-600
570-670
460-520
520-600
510-730
-580-690
-480-700
600-700
670-800
520-560
600-690
-690-850
700-900
580-620
780-900
XS
640-680
1550-1750
500-590
Double X
700-740
2080-2350
610-680
-450-700
790-900
10400-12500
790-890
table 3: spectral range of sensors / fi Ims [nm]
4. Geometric conditions
The mentioned space images have been used for mapping by the University of
Hannover. The data aquisition was based on analytical plotters because of the
special geometry of the images and the special situation of small scale photographs.
Only the MC, the center part of the LFC and the KATE 200 can be handled in
analog plotters. In addition the earth curvature cannot be neglected and also the
influence of the map projection is exceeding the mapping tolerance (Jacobsen 1986).
The traditional photo orientation with relative and absolute orientation is causing
problems in the case of very small angle photographs and in addition it will not lead
to the optimal results. By this reason, the most rigorous solution by bundle
adjustment has been used. This enables also the determination and respection of
systematic image errors. The photo orientations determined by bundle adjustment
with program BLUH have been used directly for the orientation of the analytical
plotters.
