Triangular Greenness Index (TGI) is calcultated from the area of a triangle that is defined by 3 points for the reflectance pf wavelength (480nm, R480, 550nm, R550 and 670nm, R670, R= Reflectance of wavelength). The formula for TGI is: TGI = -0.5[190(R670 – R550) – 120(R670 – R480)] Article: U.S. Department of Agriculture: Agricultural ResearchService,
Introduction Precision agriculture workflows involve operation of aerial drones, sensors/cameras, and software applications. The goal is to gain valuable insights into your crops. In recent times, the number of growers using drones to collect crop and field data has increased significantly. Agriculture-specific applications have been developed to meet this demand. Users can plan autonomous flight
Agriculturalists are moving towards applying more advanced technology in order to maximize crop production and workflow efficiency. Some technological advances that have been made are the development in artificial intelligence (AI), electronic devices, and sensors. These technologies are often applied to data collection such as crop count, plant disease assessment, drought monitoring, and soil analysis.
It is a lightweight fixed wing drone. It provides accurate results (down to 1.5 cm/.06 in) using the built-in, on-demand RTK/PPK. As with other drones using RTK and PPK, it is not necessary to set ground control points (GCP) to achieve the desired precision in the mapping survey. It is compatible with several cameras that
The NDRE (Normalized Difference Red Edge Index) is used to measure the light waves (approximately the 715 nm range of the spectrum) that are collected from multispectral image sensors. The images are processed and analyzed to determine how healthy the target crop and field is. It is very similar to the NDVI vegetation index it
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
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
Near infrared (NIR) radiation has a wavelength longer than the human eyes can detect, and it is located nearest to the section of the spectrum where the human eye can detect. The NIR region starts around the 700 µm – 800 µm. The human eye is a lot less sensitive to light wavelengths above 700
This is the section of the light spectrum that have wavelengths in the range of 680 nm – 730 nm. It is in the area where red wavelengths have low reflection on green vegetation and near infrared wavelengths which have high reflection. It is useful to use sensors that can record this part of the
The 3P Sensor collects images needed to create NDVI crop mapping reports. It can calibrate the ambient light in order to distinguish between haze and clouds as well as gauge the time of day and the season. The features for the 3P sensor include: The Price is (w/ DJI SkyPort) $5,250.00 – As of 21