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Agronaut NDVI Image Stack

Tudor -

The Agronaut Agricultural Data System (MAG100) provides gimbal stabilization for the Parrot Sequoia multispectral NDVI camera and Map Pilot integration for repeatable results. The core of this capability is the Drones Made Easy Ninja OBC which provides the hardware required to drive the DJI H4-3D gimbal, communicate with Map Pilot via the DJI On-Board SDK and pre-process the raw images taken by the Parrot Sequoia camera into useable calibrated images.

Post Flight Image Stack Processing - Versions AG_1.1.2 and up

Once a mission is completed, remove the micro SD card from the adapter in the incident light sensor. Restart the Agronaut aircraft and wait for the FUNC light to cycle back and forth between Green and Yellow (the sign that it is looking for the remote or not connecting properly). Once this stage has been reached, insert the micro SD card into the Ninja OBC's card slot. This will make the FUNC light blink slowly RED and OFF alternately every couple seconds. This means the processing has successfully begun. Once the processing is complete the Ninja OBC will go back to the Green/Yellow cycle. 

Only complete image sets (GRE, REG, RED, NIR) that are discovered on the card that have not been processed yet will be processed into a single image and placed into the 'combined' folder.

These combined images can then be uploaded to Maps Made Easy for processing. 

 

Processing Examples

RGB_29.png

RGB from Parrot Sequoia

RED_29.png NIR_29.png

GRE_29.png REG_29.png

RED  NIR

GRE  REG

from Parrot Sequoia

NDVI_29.png

Calibrated NDVI Image Stack processed on Ninja OBC

 


 

RGB_18.png

RGB from Parrot Sequoia

RED_18.png NIR_18.png

GRE_18.png REG_18.png

RED  NIR

GRE  REG

from Parrot Sequoia

NDVI_18.png

Calibrated NDVI Image Stack processed on Ninja OBC

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