A new lowcost portable multispectral optical device for ...
· In this paper, we propose a low cost, portable active multispectral optical device for precise plant stress detection and field mapping named PlantOMeter. The device has an integrated multispectral source that comprises light sources of the four most indiive wavelengths (850, 630, 535 and 465 nm), and enables simultaneous illumination of the whole plant. Sequential illumination and ...