| 摘要 |
<p>A quantised biometric method comprising the steps of: acquiring a value of a biometric measurement variable from a registrant to generate an acquired registrant variable; identifying a container from a preconfigured number of containers each of preconfigured, substantially non-overlapping, upper and lower boundary values, whose boundary values substantially embrace the value of the acquired registrant variable, to generate a registrant container; adapting the upper and lower boundary values of the registrant container so that the acquired registrant variable is centred therein; adapting the upper and lower boundary values of the remaining containers so that they remain substantially non-overlapping with each other and those of the registrant container, to generate a plurality of registrant imposter containers; storing the boundary values of the registrant container and the registrant imposter containers and an acquired identity of the registrant; acquiring a value of the biometric measurement variable from a user to generate an acquired user variable; acquiring from the user a claim to an identity to generate a claimed identity; retrieving the containers of the registrant with the claimed identity to generate the claimed registrant container and claimed registrant imposter containers; deciding that the user has passed the quantised biometric method in the event the boundary values of the claimed registrant container substantially embrace the acquired user variable.</p> |
