Patent ID: 9251634
Filing Date: 2016-02-02
CPC Classification: B42D,G06F,G06K,G06Q,G06T,G07D,G09C,H04L,H04N

Claim Text:
1. An authentication method, comprising: identifying an object to be authenticated, the object having externally observable elements having respective positions defined by a non-deterministic manufacturing variation; quantifying the respective positions of a plurality of the externally observable elements, to a precision greater than a precision of a deterministic precision of a reproduction technology for reproducing the externally observable elements, to uniquely characterize the object, at least a portion of the externally observable elements having at least one characteristic incompletely characterized in a single CIE tristimulus encoded image of the object, the at least one characteristic comprising at least one of a physical depth, a fluorescence properly, a phosphorescence, and a dichroism of at least a portion of the plurality of the externally observable elements; verifying that the at least a portion of the externally observable elements having at least one characteristic incompletely characterized in a single CIE tristimulus encoded image of the object have the at least one characteristic; and verifying that the plurality of the externally observable elements correspond to the quantified respective positions, wherein the verifying of the quantified respective positions has an error tolerance greater than zero to a physical change from the quantified respective positions of the plurality of the externally observable elements to the respective positions during verification.