Embedding and Reading Codes on Objects

摘要

Watermarks and/or other related machine-readable coding techniques are used to provide data on or in objects. In one implementation a method includes providing an object with first machine-readable information. The first machine-readable information is provided on or in the object with a radio frequency identification (RFID) tag. The method also includes providing second machine-readable information on or in the object. The second machine-readable information is readable from optical scan data representing at least a portion of an object surface including the second-machine-readable information. The second machine-readable information is provided to cooperate with the first machine-readable information. Other implementations are provided as well.