Delivery system

A validation system comprising:

• at least one computer having a machine learning model trained with virtual images of a plurality of items on a platform;
• and
• at least one camera configured to image a plurality of items stacked on a platform, the at least one computer programmed to use the machine learning model to identify each of the plurality of items in images received from the at least one camera.

A training station for a validation system comprising:

• a turntable for supporting an item thereon;
• and
• a camera directed toward the turntable for capturing images of the item on the turntable at multiple angles.