Biometric linkage between identity document card and its holder based on real-time facial recognition

摘要

Access control systems based on RFiD cards are very popular in many companies and public institutions. There is an assumption, that if one has a card and passes verification, the access is granted. Such an approach entails few threats: using of cards being in possession of unauthorized people (stolen or just borrowed), risk of cloning card. We strongly believe that prevention is a better way to obtain desired security level. The usability of the system is essential, but it has to be pragmatic, that is why we accept in that case higher value for False Acceptance Rate, simultaneously getting lower False Rejection Rate. We aim to discourage, in significant way, any attempts of stealing or borrowing access cards from third parties or cloning them. Our solution verifies the biometric linkage between the signed facial image of the document holder embedded in personal identity document and the user facial image captured by a camera during usage of a card. In order to avoid any trials of real-time facial substitution, we introduced depth camera and infrared flash. Our goal is to compare the similarity of faces of document holder and user, but at the same time to prevent misuse of this high quality digital data. In order to support that assumption we process captured image in the reader and send it to the card for matching (match-on-card).