Use of UAVs and Canopy Height Model Applied on a Time Scale in the Vineyard

Among the main objectives of “Precision Farming”, there is a more rational use of plant protection products, including a better application in the field. The benefits that can be achieved are various: from best product quality and reduced costs, up to an increase in productivity with considerable advantages both from an economic point of view and in terms of lower environmental impact. Currently, field measurements in agriculture are carried out using mathematical formulas that require direct measurements of crown height, thickness and distance between canopies (e.g., the Tree Row Volume or TRV). These methods are used e.g. to estimate adequate dosages treatments and to manage the canopy of vineyards. The present research describes the development of a methodology for the computation of the volumes through remotely sensed imagery acquired with UAV RGB digital camera, analyzed with MATLAB scripts and ArcGIS. Preliminary results show that the volumes obtained with this 3D reconstruction are 50% lower than those directly measured in the field (TRV), therefore promoting a limitation of the use of chemicals.