Fig. 4From: Dynamic monitoring of biomass of rice under different nitrogen treatments using a lightweight UAV with dual image-frame snapshot camerasSpatial and temporal variations in Red Green Blue (RGB) images, NDSI(796, 679), VDVI and AGB (kg/m2) of rice. NDSI(796, 679), VDVI, AGB and N represent the normalized difference spectral index, visible-band difference vegetation index, aboveground biomass, and nitrogen fertilizersBack to article page