Fecha de publicación: 06/04/2022 Fuente: WIPO "hive" A crop scanning system for determining a parameter associated with a plurality of harvestable items of a crop, the harvestable items such as tubers or potatoes being beneath a ground surface, the crop scanning system including: a scanning head (11, figs.4-6) assembly including at least one scanning device (111, figs.4-6) configured to perform a scanning operation in relation to the harvestable items, the scanning device being configured to emit a ground penetrating radar signal or pulse and to generate scan data including a representation of the harvestable items; an imaging system configured to capture an image of a part of the crop which is above the ground surface and to generate image data including a representation of one or more stems associated with the harvestable items; and an analysis system configured to use the scan data and the image data to determine the parameter associated with the harvestable items, wherein the at least one parameter includes a predicted size of the harvestable items. Preferably the scanning system is attached to a vehicle (2, fig.6) having wheels or tracks.