Table 5.
Parameters corresponding to different flight altitudes of UAVs.
| Flight altitude (m) | Heading overlap rate (%) | Sideways overlap rate (%) | GSD (cm) | Flight time (s) | Number of photos (pcs) | Data size (Mb) |
|---|---|---|---|---|---|---|
| 15 | 78 | 80 | - | - | - | - |
| 20 | 78 | 80 | 0.3 | 569 | 241 | 2048.5 |
| 25 | 78 | 80 | 0.4 | 367 | 155 | 1317.3 |
| 30 | 78 | 80 | 0.5 | 263 | 110 | 935.7 |