Tab. 3 Confusionmatrix SPOT - Simulation
Deciduous
Spruce
Douglas
fir II
Douglas
fir I
Redoaks
Sapling
Culture
Clearing
Clearing
Deciduous
95,7
-
-
0,3
-
3,0
-
-
0,5
Spruce
-
93,0
5,6
-
-
-
-
-
-
Douglas fir
II
5,2
1,7
86,2
6,9
-
-
-
-
-
Douglas fir
I
-
-
14,3
85,7
-
-
-
-
-
Redoaks
6,7
-
-
-
93,3
-
-
-
-
Sapling
5,5
-
-
-
-
81,3
13,2
-
-
Culture
-
-
-
"
2,0
6,1
83,7
-
-
Clearing
-
-
-
-
-
-
-
100,0
-
Clearing
-
-
-
-
-
-
-
97,0
middle infra-
■ interpretation.
[•TMS1 (blue)
ared 2300 nm)
nd its high
»t used.
: areas in the
i presented in
! results of the
ation of the
d forest areas
: forest of the
a low correla-
! lowland-forest
M scene from
different
for example in
mulation, the
: bands TM1 and
already ex-
Tab, 4 Confusionmatrix TM - Simulation
Deciduous
1
Deciduous
2
Deciduous
3
Spruce
Douglas fir
II
Douglas fir
I
Redoaks II
S'
c
•H
r-J
a
ni
C/}
Culture 2
Culture 1
Sapling 2
Clearing
Deciduous
1
97,1
1 ,1
1 ,7
-
-
-
-
-
-
-
"
-
Deciduous
2
-
95,8
3,4
-
-
0,7
-
-
-
-
-
-
Deciduous
3
2,0
0,2
97,7
-
-
-
-
-
-
-
-
-
Spruce
-
-
-
100
-
-
-
-
-
-
-
-
Douglas fir
II
-
-
-
-
100
-
-
-
-
-
-
Douglas fir
I
-
-
-
-
-
100
-
-
-
-
-
-
Redoaks II
-
"
-
-
-
-
99,6
-
-
-
-
-
Sapling 1
-
-
-
-
-
-
-
81 ,5
5,2
-
12,4
0,7
Culture 2
-
-
0,3
-
-
-
-
-
93,5
-
3,8
1 ,9
Culture 1
-
-
-
-
-
-
-
-
-
100
"
-
Sapling 2
-
4,8
-
-
-
-
-
-
25,9
-
66,4
2,7
Clearing
-
-
-
-
-
-
-
-
-
-
-
92,4
4.2 Signatureanalyse
The differentiation between the classes listed in
fig. 1 was permitted by an analysis of the signa
tures of forest classes for the data set of the SPOT-
simulation. Stands of spruce and young douglas firs
have the lowest reflection values in the infrared
spectral range. Clearings with minimal vegetation
stand out clearly in SS1 and SS2. In SS3 stands
of poplar can be clearly identified frcm mixed deci-
duos stands and clearings with denser vegetation.
However in order to seperate the last two the visi
ble bands are necessary. Young plantations and red
oaks have a high level of reflection in SS3 but they
are easier to differentiate in SS1 (green).
The possibilities of differentiation for the single
classes is shown by the presentation of the bands
SS1 and SS3 in two dimensional feature space (Fig. 2).
In fig. 3 the forest signatures are shown as re
flection curves for the data set of the TM-simulation,
for which the object classes in two dimensional fea
ture space are also presented in fig. 4. As was to
be expected from the correlation tables, band IMS5
offered no further possibilities of differentiation
in the data set presented here.
On the whole the same possibilities of differentiation
between classes are offered here as in the SPOT-simu-
lation.
In both data sets the seperation of deciduos forest
into the following age classes is possible:
