How to generate the NDVI of an Orangery with the Drone for Precision Farming.
Do you want to monitor the health condition of your Orangery? Are you a professional who wants to provide the service for NDVI monitoring of an Orangery or a Crop? Analist Group has the Complete Solution which is accessible to everyone for Precision Farming: Phantom MAPIR. The Complete Solution for Precision Farming Phantom MAPIR: real case application of survey and NDVI analysis of an Orangery.
Orangery NDVI obtained with the Drone for Precision Farming.
Procedure for data acquisition and NDVI Map generation
- Site analysis and flight planning;
- Flight execution with automatic procedure and image acquisition;
- Image processing with Pix4Dmapper to generate the orthomosaics and the NDVI;
- NDVI analysis and interpretation;
- Targeted intervention planning (pesticides, fertilizers,etc.).
Technical details:
The flight was carried out with a Phantom MAPIR by Analist Group equipped with MAPIR Visible Light RGB and MAPIR Blue NDVI + NIR cameras.
- Equipment used: Phantom MAPIR Solution with Visible Light RGB camera and MAPIR Blue NDVI + NIR camera
- Software: Pix4Dmapper PRO
- Flight height: 30 m
- Shooting sequence: 1 frame every 3 seconds
- Flight time: 7 minutes
- Speed: 1,5 m per second
- Surveyed area:: about 2 hectares
- Data obtained: Orthomosaic, NDVI MAP
Results obtnained: NDVI Orthomosaic
The Visible Light RGB Mapir camera mounted under the Phantom MAPIR allowed us to obtain an RGB set of photos which were then processed with Pix4Dmapper Photogrammetric Software thus generating the Orthomosaic of the Orangery as shown in Pic. 1.
The image obtained with the Visible Light MAPIR camera shows an abnormal shadowing of the trees due to the fact that the sun was often hidden behind the clowds. On the other hand the NDVI images were affected by the sun. The orthomosaic generated with Pix4Dmapper can be used for:
- Orange tree counting;
- Distances, areas and volume calculations;
- Contour Lines;
- Cross profiles and Sections, Areas and printing Layout with Analist 2016 CLOUD.
With Pix4Dmapper you can also generate 3D models in scale and geolocated directly from the photos taken with the Drone or camera.
Try how to generate a 3D model with Pix4Dmapper!!
Pix4D FREE Download Watch what can be done with Pix4Dmapper Learn how to animate your 3D model
INDVI image from MAPIR Blue NDVI + NIR camera
To obtain the NDVI map and analyze the health condition of an Orangery we have used a MAPIR Blue NDVI + NIR, an Infrared IR MAPIR IR and the Visible Light RGB MAPIR camera. The images processed provided a detailed map of the cultivation status.The NDVI map is essential in order to immediately understand which areas are healthy and where intervention is required.
NDVI Details
Details: NDVI – Single Camera MAPIR Blue NDVI + NIR
Details: NDVI – Camera MAPIR Visible Light (RED Channel) + MAPIR IR infrared
To obtain more detail it is possible to use 2 or more MAPIR cameras on your Drone.
How to accurately and correctly read the NDVI Map
The NDVI Map we obtained allows you to immediately assess the cultivation health condition. With reference to the NDVI index scale on the bottom left in Pic. 2 the pixels with a value which varies between -0.18 and -0.2 NDVI represent a non-vegetation state; the pixels listed with a value between +0.6 and +0.23 NDVI represent the vegetation and its health condition: the areas in a better condition are represented in RED; the less healthy are GREEN – YELLOW. The NDVI vegetation scale is: DARK BLUE-> BLUE -> GREEN -> YELLOW -> ORANGE -> RED. It is consequently immediately clear which areas need targeted intervention
NDVI RAW Orthomosaic (raw, not processed)
IR Orthomosaic: photos taken with a MAPIR IR infrared camera. The photos were processed with Pix4Dmapper PRO.
NDVI RAW Orthomosaic (raw, not processed)
NDVI Orthomosaic: photos taken with a MAPIR Blue NDVI + NIR camera. The photos were processed with Pix4Dmapper PRO.
Conclusion
The real application case here shown, illustrates that with a 7 minute flight it is possible to obtain the NDVI Map of an approximately 2 hectar Orangery making it immediately possible to plan targeted interventions on the cultivation with considerable time and cost saving.
The stitching (unione) of the photos was carried out with Pix4Dmapper PRO. If you fly at a low altitude and/or ad an elevated speed the quality of the images could be imperfect. For this reason we suggest to fly at 1,5 meters per second, at an altitude of at least 30 meters from the area you wish to survey 1 photo every 2-3 seconds.
Why choose the new DRONE for Precision Farming: Phantom MAPIR?
- Accessible and affordable Solution (Request Information)
- Simple to use
- Training courses included in the Solution
- Massive added value data Acquisition in just a few minutes (NDVI – ENDVI)
- Targeted intervention planning with cost and time saving
- Possibility to carry out continuous and low cost monitoring of cultivations
More information on the Solution for Precision Farming with the DRONE Analist Group is MAPIR Official Partner
