This disclosure relates to a computer-implemented method for determining a
mass per
unit of length variation of a food product. The method comprises obtaining, e.g. receiving, weight data acquired by a weighing
system. The weight data are indicative of one or more respective weights of one or more groups of food items and of a weight of a first group of food items. Each group out of the one or more groups of food items is a group of food items that have been separated from, e.g.
cut off from, a first food product. Further, the first group of food items comprises a first sub-group of one or more food items that have been separated from, e.g.
cut off from, the first food product and a second sub-group of one or more food items that have been separated from, e.g.
cut off from, a second food product. The first food product and second food product are a same type of food product, for example a beef loin primal cut. The method also comprises obtaining position data indicating, for each group of food items for which the weight data indicate the weight and for the first sub-group of the first group, a position in the first food product. Then, the
mass per
unit of length variation of the food product is determined, which comprises steps (i) and (ii). Step (i) is estimating a weight of the first sub-group of the first group and determining, based on the
estimated weight and based on the position indicated by the position data for the first sub-group of the first group, a
mass per
unit of length value for the first sub-group of the first group. Step (ii) is determining, for each of the one or more groups of food items, based on the weight of the group of food items in question and based on the position indicated by the position data for the group of food items in question, a mass per unit of length value.