The COSI-system is a novel compact hyperspectral imaging solution designed for small remotely piloted aircraft systems (RPAS). It is designed to supply accurate action and information maps related to the crop status and health for precision agricultural applications. The COSI-Cam makes use of a thin film hyperspectral filter technology which is deposited onto an image sensor chip resulting in a compact and lightweight instrument design.

This paper reports on the agricultural monitoring missions in 2015 which have been executed with the COSI-system over hundreds of experimental field plots containing 40 different varieties of winter wheat presenting a gradient of sensitivity to fungal leaf diseases. In this experiment two different treatments have been executed one with fungicides and the other one without. In total 4 missions with a RPAS have been conducted over the test area. The paper describes the preliminary results of the discrimination between the different treatments and varietal sensitivity as observed by the COSI-Cam.