NMSU researcher uses multispectral camera during drone flight to detect plant stress » Drone Accelerator
Drone Major Group
by on September 26, 2018
LOS LUNAS – A bird’s eye view can sometimes give a better picture of a situation.
Integrated pest management researchers at New Mexico State University are adapting the concept by using specialized cameras on drones to locate plants suffering from stress.
“With the use of a multispectral camera, we are collecting red and near-infrared spectral bands,” said Ashley Bennett, urban IPM specialist with the College of Agricultural, Consumer and Environmental Sciences. “From these bands we can calculate a plant stress metric called normalized difference vegetation index.”
NDVI ranges from negative one to one. The greener the plant is, the healthier it is and the closer the NDVI value is to one. The more a plant is stressed the closer the value is to negative one. Images range from green for healthy plants, to red for stressed plants.
“Many factors can cause plant stress,” Bennett said. “It could be an insect, a disease or water stress.”
Continue> http://newscenter.nmsu.edu/Articles/view/13317/nmsu-researcher-uses-multispectral-camera-during-drone-flight-to-detect-plant-stress
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