User verification system

Abstract

Abstract The invention relates to a biometric verification system for use e.g. in an ATM (10). When a user wishes to use the ATM, the system scans a biometric feature of the user such as the iris of one of his eyes (32), and produces a diffraction pattern of that feature. The diffraction pattern is compared against a reference matched spatial filter in a Vander Lugt optical correlator (70). If the diffraction pattern and the matched spatial filter match then a correlation dot is produced, and the user is authorized to use the ATM (10). For a user to be able to use ATMs that comprise this verification system, he has first to use a recording system that produces the reference matched spatial filter of the biometric feature.

Inventors

• 👤 Alexander W. Whytock

Bibliographic Details