DEM | Mean Difference | Minimum Difference | Maximum Difference | Standard Deviation | RMSD | ± 2 m∙% | ± 4 m∙% |
ASTER | 1.47 | −47.5 | 46.8 | 6.8 | 6.9 | 23.2 | 44.5 |
SRTM90 | 1.62 | −33.8 | 45.4 | 3.1 | 3.5 | 49.9 | 77.7 |
SRTM30 | 1.64 | −16.9 | 28.7 | 3.0 | 3.5 | 49.9 | 77.8 |
CDED | 0.58 | −33.1 | 38.8 | 3.8 | 3.8 | 48.1 | 76.8 |
NB-DEM | 0.66 | −24.1 | 30.7 | 2.8 | 2.8 | 66.9 | 87.8 |
NBDEM-Fused | 1 | −18.1 | 27.1 | 2.4 | 2.6 | 68.3 | 88.9 |
NBDEM-Optimized | −0.13 | −18.1 | 21.8 | 2.3 | 2.3 | 70.1 | 92.9 |