Discriminación entre tipos de malas hierbas: monocotiledóneas y dicotiledóneas

Abstract

An important objective in weed management is the discrimination between grasses (monocots) and broadleaf weeds (dicots), since these two weed groups can be appropriately controlled by specific herbicides. In fact, efficiency is higher if site-specific treatments with selective herbicides for each type of infestation are applied instead of using a single broadcast herbicide on the whole surface. A novel approach of discrimination between monocot and dicot weeds uses outdoor field images under varying conditions of lighting obtained from a conventional camera, which are characterized by the combination of the seven Hu moments and a set of fuzzy decision-making methods. The proposed combined strategy works properly when the weeds present an early stage of growth, which coincides with the right timing for herbicide application.