Self-propelled forage harvester

A self-propelled forage harvester comprising:

• a mounting device configured to attach to a height-adjustable front attachment that is configured to collect harvested material;
• one or more work units configured to receive or process the harvested material collected, the one or more work units comprising a feed device connected to or including the mounting device, the feed device configured to receive harvested material collected by the front attachment;
• a transfer device configured to discharge the harvested material processed by the one or more work units;
• at least one camera system configured to generate one or more images of a flow of the harvested material passing through at least a part of the forage harvester;
• an image evaluation device configured to evaluate the one or more images;
• and
• a driver assistance system configured to control one or more aspects of one or more of the front attachment, the one or more work units, or the transfer device;
• wherein the image evaluation device is configured to:
• analyze, using a machine learning algorithm, the one or more images of the flow of harvested material to determine a proportion of inorganic contaminants contained in the flow of harvested material;
• and
• transmit, to the driver assistance system, the proportion of the inorganic contaminants or an indication of the proportion of the inorganic contaminants;
• and
• wherein the driver assistance system, based on the proportion of the inorganic contaminants or the indication of the proportion of the inorganic contaminants, is configured to modify one or more settings of the front attachment or at least one of the one or more work units.