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International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XXXV, Part B7. Istanbul 2004
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20 40 60 80 100 120 140 160
(c) Classified image using
MLP
(d) Classified Image using
MLC
Figure 4: The classification process, (a) The original image of IRS-1D satellite, (b) Segmented image using
SOM method, (c) Classified image using MLP method, and (d) Classified image using MLC method.
Using segmemation in this study, efficiency of the
classification process has also been improved. This is due to
the segmemation made before feature extraction to avoide
time consuming process of redundant data processing in
feature extraction stage. Also, with regards of efficiency of
the process, Resilient back propagation that is generally much
faster than the standard steepest descent algorithm has been
applied. It also has the appropriate property that requires only
a modest increase in memory requirements. This enables us
to store the updated values for each weight and bias which is
equivalent to storage of the gradient.
7. REFRENCES
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