Table 2 Summarizes the RMSE differences between the resampled DEMs and their reference versions.
Datasets | Method of Resampling | RMSE | Datasets | Method of Resampling | RMSE |
|---|---|---|---|---|---|
30-meter DEM | 90-meter resampled | 6.26 | 12.5-meter DEM | 20-meter resampled | 1.55 |
Nearest | 6.12 | Nearest | 1.55 | ||
Bilinear | 3.36 | Bilinear | 1.43 | ||
Bi cubic | 2.12 | Bi-cubic | 1.09 | ||
Majority | 6.01 | Majority | 1.43 | ||
Kriging | 6.56 | Kriging | 1.67 | ||
HNN | 1.94 | HNN | 1.03 | ||
20-meter DEM | 60-meter resampled | 4.22 | 1.5-meter Ground Survey | 12.5 m resampled | 1.49 |
Nearest | 5.30 | Nearest | 1.44 | ||
Bilinear | 1.88 | Bilinear | 1.36 | ||
Bi cubic | 0.94 | Bi-cubic | 1.05 | ||
Majority | 5.12 | Majority | 1.33 | ||
Kriging | 5.47 | Kriging | 1.55 | ||
HNN | 1.76 | HNN | 1.01 |
