Table 1 UAV image collection environment
From: Automatic rape flower cluster counting method based on low-cost labelling and UAV-RGB images
Year | Acquisition dates | Growths | Flight altitude (m) | Temperature (\(^{\circ }\hbox {C}\)) | Environment |
|---|---|---|---|---|---|
2021 | February 19 | Bud stage | 15 | 12 | 11–13 am; low/middle cloudy or cloudless; wind speed less than 4m/s; Good light conditions |
February 26 | First flowering stage | 15 | 14 | ||
March 3 | Full flowering stage | 10 | 21 | ||
March 14 | Full flowering stage | 10 | 23 | ||
March 22 | Decaying stage | 10 | 24 | ||
April 5 | Decaying stage | 10 | 15 | ||
2022 | March 1 | Full flowering stage | 13 | 20 |