Table 1.
Summary of residuals vs. slope for Cartosat-1 DSMs generated over Mausanne les Alpilles test site. (a) for DSMs generated at the desired resolution directly from the Cartosat-1 images. (b) for DSMs generated by downsampling the 5m resolution Cartosat-1 DSM. All values refer to a comparison over the whole test site.
|
Resolution (m) |
LE90 (m) vs. slope (a) | LE90 (m) vs. slope (b) | ||||
|---|---|---|---|---|---|---|
| < 20% | 20% – 40% | > 40% | < 20% | 20% – 40% | > 40% | |
| 5 | 5.6 | 14.3 | 20.1 | 5.6 | 14.3 | 20.1 |
| 10 | 5.2 | 13.7 | 22.4 | 5.6 | 13.8 | 23.3 |
| 15 | 5.8 | 14.3 | 20.3 | 5.6 | 14.4 | 20.4 |
| 20 | 5.6 | 20.6 | 26.2 | 5.7 | 15.5 | 21.1 |
| 25 | 4.9 | 15.3 | 20.0 | 5.6 | 14.3 | 19.9 |
| 30 | 5.2 | 17.7 | 22.3 | 5.8 | 15.6 | 21.1 |
| 35 | 5.3 | 19.3 | 24.2 | 5.6 | 14.5 | 20.1 |
| 40 | 5.6 | 19.6 | 23.9 | 5.7 | 15.4 | 20.9 |
| 45 | 6.0 | 21.4 | 26.4 | 5.6 | 14.2 | 20.0 |
| 50 | 6.4 | 21.1 | 25.8 | 5.7 | 15.5 | 21.0 |
| 55 | 5.9 | 20.5 | 25.1 | 5.5 | 13.9 | 20.1 |
| 60 | 7.2 | 23.3 | 27.8 | 5.8 | 15.5 | 21.4 |
| 65 | 6.6 | 22.5 | 26.3 | 5.5 | 14.1 | 20.2 |
| 70 | 8.7 | 25.8 | 30.7 | 5.7 | 15.5 | 21.2 |
| 75 | 7.8 | 24.4 | 28.7 | 5.6 | 14.2 | 20.2 |
| 80 | 8.0 | 25.5 | 28.7 | 5.7 | 15.5 | 20.9 |
| 85 | 7.6 | 24.3 | 28.1 | 5.5 | 14.5 | 19.8 |
| 90 | 7.6 | 24.6 | 28.1 | 5.8 | 15.8 | 21.1 |