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Supervised classification
To illustrate the use of ground truth in classification we show
results of combining ground truth with both ERS and Landsat TM
band 5 data for a region of Northern Italy.
The ground truth has established the following classes:
- Dry rice (red)
- Wet rice (yellow)
- Woodland (green)
- Corn (cyan)
- Urban areas (blue)
These are illustrated on the following page . The identified areas
are split into training and test sets for use initially in
supervised classification of each image separately.
The results demonstrate:
- the advantage of data fusion, in the form of joint segmentation and classification.
- the superiority of the adaptive filter approach of segmentation compared with the fixed 3x3 window.
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