REQUEST A FLIGHT THROUGH THE AGREMO APP
Read a short guide for a few steps to request a drone flight through the Agremo app.
CHOOSING THE RIGHT DRONE
For requesting Agremo Analyses, you need drone images captured with the most common commercial drones, both fixed-wing and multirotor.
DRONE MAPPING/CAMERA & SENSOR
Drone mapping is an aerial survey conducted by a drone and specialist cameras, which can include RGB (for photogrammetry), multispectral, thermal, or LiDAR sensors. You don’t need any specific sensor or camera. The analyses work with every available RGB sensor. Agremo analyses also work with specialized sensors like the ones from Micasense or Senterra, NIR, or multispectral cameras. Higher-resolution imagery will produce better data, so we recommend using a camera with a high pixel resolution. A minimum required resolution is 12 megapixels with 20 megapixels being ideal.
Agremo has a built-in stitching engine available as an add-on.
Agremo AI analyses work only with stitched images (2D maps) in GeoTIFF format. 2D Map (orthomosaic) in GeoTiff is formed through the stitching process of a drone image sequence with a stitching software solution of your choice.
If you would like to use our stitching service please, contact us at [email protected] to find out more.
GROUND SAMPLING DISTANCE
Ground sample distance (GSD) is a metric that is useful for photogrammetry and measurements in drone mapping and surveying projects. GSD is defined as the distance between the centers of two adjacent pixels measured on the ground. This metric is related to the camera focal length, the resolution of the camera sensor, and the camera’s distance from the subject. It is usually described in centimeters per pixel (cm/px)
Agronomists and Ag drone experts recommend starting mapping plants once they have reached the V3 stage or about 5 in height. Also, fly a drone during the middle of the day to avoid shadows on your images and ensure good light distribution across the field.
PREVIOUS CROP TREATMENTS & WATERING
In case the plants were treated or watered before mapping, it would be best if the entire field was treated (not just part of the field), as these actions may have an impact on factors like color and canopy, which could affect the accuracy of the results.
FRONT & SIDE OVERLAP
To achieve 0.4-1 in per pixel, choose an 80% front and 75% side overlap, or try different settings that work for your drone and sensor. If you need a better image quality with more details (to spot plant stress or diseases on small plants for example), increase the side overlap accordingly.
Altitude always depends on the sensor you’re working with and how detailed the images have to be for the particular case. Ag drone experts recommend flying between 165-245 ft.
Flying speed is connected to the flying altitude and is usually set to 4-10 MPH.
Generally, it’s okay to fly both during sunny and overcast conditions, as long as the light is distributed evenly on the field. Experts recommend mapping either when clouds cover the entire field or when there are no clouds.