Table 4.
Herb and grass vegetation. Vertical agreement measures of the three digital surface models in comparison with the stereo-measurements.
| Herb and Grass | WorldView-2 RPCs-only - stereo data | WorldView-2 GCP-enhanced RPCs - stereo data | ADS 80 - stereo data |
|---|---|---|---|
| Sample size | 2,384 | 2,371 | 2,923 |
| 50% quantile (median) [m] | −3.85 | −0.43 | −0.04 |
| NMAD [m] | 0.67 | 0.57 | 0.29 |
| 68.3% quantile [m] | −3.55 | −0.16 | 0.09 |
| 95% quantile [m] | −1.70 | 1.27 | 0.91 |
| RMSE (without outliers) [m] | (n = 2,380) 3.92 | (n = 2,342) 0.91 | (n = 2,889) 0.53 |