Methods and devices for classifying objects

摘要

The invention provides methods for classifying an object by (a) at least partially coating at least one surface of the object with at least one barcode; (b) scanning the barcode with at least one corresponding barcode detector that is detectably compatible with a barcode of the type coated on the object; (c) determining whether the barcode is read by the barcode detector; and (d) classifying the object on the basis of at least one barcode not being read by the corresponding barcode detector.