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International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XXXV, Part B-YF. Istanbul 2004
470 000 472 000 474 000 476 000
4 480 000
—4 478 000
-4 476 000
1.4474 000
— 4472 000
LEGEND
[CT] Auicultuie
Range-shrub
LI] Range-heib 0 1000
N
2000 meters A
M Forest
Figure 5: Product 1: Classification Product of bands used as input
and trained by T1 (Training set for bands)
470 000 472 000 474 000 476 000
»—4 480 000
-4 478 000
4472 000
E.
LEGEND
CO Agriculture
Range-shrub
[7] Rangehei. 0 1000
N
2000 meters A
ME Forest
Figure 6: Product 2: Classification Product of bands, DTM and
slope used as input and trained by T2 (Training set for bands, DTM and
Slope)
57
Class GT 1 GT2 GT 3 GT4 Total. Accuracy
1 120 41 34 3 198 60.6%
2 97 514 125 11 747 68.8%
3 170 265 710 3 1148 61.8%
4 0 44 0 43 87 50.5%
total 387 864 869 60 2180
accuracy 31.0% 64.5% 81.7% 0%
Overall Accuracy 63.6% Khat Statistic 41.6%
Table 2: Error matrix for Productl; (1) Agriculture, (2) range-shrub, (3)
range-herb., (4) Forest
Class GT I GT2 GT3 GT4 Total Accuracy
1 187 19 32 1 239 78.2%
2 25 646 107 14 792 81.5%
3 175 730 730 2 1070 68.2%
4 0 0 0 43 79 54.4%
total 387 864 869 60 2180
accuracy 48.3% 74.7% 84.0% 71%
Overall Accuracy 73.6% Khat Statistic 58.8%
Table 3: Error matrix for Product 2; (1) Agriculture, (2) range-shrub, (3)
range-herb., (4) Forest
Class GT GT23 GT 3 GT4 Total Accuracy
I 127 35 33 2 197 64.4%
2 9] 520 117 11 739 70.4%
3 169 265 719 4 1137 62.1%
4 0 44 0 43 87 50.5%
total 387 864 869 60 2180
accuracy 32.8% 65.3% 82.7% 0%
Overall Accuracy 64.7% Khat Statistic 43.2%
Table 4: Error matrix for Product 3; (1) Agriculture, (2) range-shrub, (3)
range-herb., (4) Forest
CONCLUSION
In this study, a method primarily based on integrating ancillary
data into classification procedure as a component is presented.
The results of the classification with the integration of
topographical data verified that the method yielded a reasonable
amount of improvement in classification where conventional
logical channel approach provided only slight amount of increase
in total accuracy.
Highest improvement is obtained for agriculture and lowest for
forest. Classes, when put into sequential order to comprehend
relative improvement due to integration of topography show the
same sequence with the classes listed sequentially by means of
their correlation with topographical parameters. The case presents