Full text: Remote sensing for resources development and environmental management (Volume 1)

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:
	        
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