You need to consider the stage of the plant and the way you fly your drone.
If you can't see the plant in your resulting image, then our system won't be able to count it. Guidelines:
- Corn: Should be between V3 and V5. The corn needs to be taller than 5in (12 cm).
You need to fly your drone to produce images with a ground sampling distance (GSD) of 2.5 cm per pixel or less. For the Agribotix Agrion the following settings will work well:
Ground Speed: 8 m/s
Pattern: Lawnmower pattern/Survey Grid.
Photo Interval (if not controlled by autopilot): 2 seconds
Photo Sidelap: 80%
Photo Overlap: 80%
Survey Grid Angle:
If flying with a gimbal:
- If light or no wind, fly perpendicular to the direction of rows (optimize count accuracy).
- If strong wind, fly perpendicular to wind direction (optimize flight efficiency).
If flying with NO gimbal:
- If no wind, fly perpendicular to the direction of rows (optimize count accuracy).
- If any wind, fly perpendicular to wind direction (maintain consistent camera angle and optimize flight efficiency).
Additional Information to Collect:
When uploading the results you will also need to provide:
- Crop type,
- Days since planted,
- Row spacing (in inches),
- Seed spacing (in inches).
We also recommend you initially do a manual count to validate your results with those produced by Agribotix.