GRVI is another one of the vegetation indices that uses information from visible light range of the spectrum to determine the phenology present in a crop field. This index is calculated from the green and red light reflectance. The method involves a time series of GRVI readings to show the timing of greening-up to autumn-coloring.
VARI was originally designed for satellite imagery. It is a vegetation index the uses only light waves from the visible light section of the spectrum (Red, Green, Blue). It puts a quantitative value on vegetative fraction estimation (VARI = (Green – Red) / (Green + Red – Blue). The index is only affected by atmospheric
Precision Analytics: Agriculture is a complete Mapping and Analytics web-based platform for precision agriculture crop data management that uses images captured from drone flights. The process for using this web-based portal goes as follows: Collect the image data with your drone and upload the data to your account where you can generate deliverables such as:
An IMU sensor is a digital device that measures and records an Unmanned Aerial Vehicles’s acceleration, angular rate, and orientation in order to maneuver it. The IMU uses a conflation of accelerometers, gyroscopes, and magnetometers to achieve the measuring process. Recent developments in this area has allowed for IMU-enabled GPS (Global Positioning System) devices as
In DJI Mavic 3M, the M stands for multispectral. This Mavic 3 version couples a RGB camera and a multispectral camera that lets you survey and analyze your field and crops to determine how healthy your crop is as well as any environmental stress that might be present. The Mavic 3M’s multispectral camera has 4
* Note this is an earlier model of the DJI Matrice Series Drone * The DJI M100 (w/ DJI Smart Farming Package) combination is not available as a new drone bundle purchase. It is still listed on vendor sites but its status is either discontinued, back order, or out of stock. There are some used
NDVI (Normalized Difference Vegetation Index) is a graphical display that represents the results from images that were captured with a multispectral sensor during a remote unmanned vehicle survey mission and analyzed for the presence of live green plant life. Thus, NDVI information will bear out a measure for crop health. Learn More (Last Edit: 18
NTRIP (Network Transport of RTCM via Internet Protocol) is a communication protocol that allows synchronization between an UAV and a base station so corrections for location positioning can occur in real-time during a survey flight. The protocol streams DGPS (Differential Global Positioning) to enhance the available GNSS (Global Navigational Satellite Systems) which dramatically increases the
A Geographic Information System(GIS) is a computer application that is setup to gather, store, and examine data that corresponds to specific location position on the earth’s surface. It can also display this information for the user in the form of maps so that one can view, analyze, and recognize relational patterns that will help them
This is a process where the GPS data and the images that were obtained during an aerial flight from a drone mission are processed alongside data at the ground base station after the flight is completed instead of during the flight (or real-time). It is used to correct the location data in the images. Learn