Abstract: A method of registering biometric data is disclosed wherein a registration profile is formed of those templates that have a likelihood of registering with the biometric data that is within predetermined limits. The profile is then compared against one or more other profiles to determine an individual most likely to have said profile. That individual is then identified. Optionally, the profile comparison is used in conjunction with a individual registration values formed by comparison between the biometric data and stored templates.

Abstract: A method of registering biometric data is disclosed wherein a number of instances of input biometric data are accepted from a new user during a registration process. Each of these data samples are compared against existing templates to identify those templates posing a significant risk of confusion with a data sample. Those templates are identified and information relating to those templates is stored with the enrolled template of the new user. When a user is identified as the new user, the system automatically verifies that the data sample does not also result in identification as one of the identified templates.