Stimulation Initiative for European Neural Applications
Esprit Project 9811
ZN-Face: Access Control Using Automated Face 
Recognition
Company background
The following application has been developed in co-operation with a 
banking-house in Frankfurt, Germany, with a great number of branches all 
over the world.
The problem
Absolutely safe verification of the true identity of a person is the 
ultimate goal of all access control systems. However, this goal can not 
be achieved under all circumstances with conventional automated systems: 
A stolen key or an illicitly acquired personal identification number are 
most common safety leakages in high-security areas, e.g. sensible areas 
in industry, banking, powre plants, computer centers, etc. .
Neural network application
In co-operation with a banking-house in Frankfurt, Germany, an automated 
face recognition system on the basis of a neural network has been 
developed which reliably verifies the true identity of a person. A 
camera  -integrated in a verification console- takes a picture of the 
person and verifies whether the picture matches the stored image 
features of this person. Even under different facial expression, 
position or size of the head the neural network-part of the system 
reliably recognizes the person and prevents admittance of unauthorized 
persons.
Benefits
The described face recognition system based on a neural network in 
combination with equipment for image acquisition offers an automated 
control system which performs an identification of persons from their 
facial image. It works objective, fast, without fatigue and causes no 
extra personnel costs even in 24h-operation.
Generalization
In contrast to customary applications of neural networks in which great 
amounts of data have to be processed, this application opens up 
possibilities in fields such as image processing where the focus is on 
data comparison.
Contact person
Dr. Jörg Kopecz -
Zentrum für Neuroinformatik GmbH.
Universitätsstraße 160,
D-44801 Bochum.
Phone: +49 234 9787-25,
Fax: +49 234 9787-77,
E-mail:joerg@berlin.ZN.ruhr-uni-bochum.de
References for further reading
J. Kopecz  et al. ZN-Face: A system for Access Control Using Automated 
Face Recognition.
In: 
Neural Networks: Artificial Intelligence and Industrial Applications.
Proceedings of the 3rd Annual SNN Symposium on Neural Networks, Nijmegen,
The Netherlands, 14-15 September 1995, Nijmegen. B. Kappen and S. Gielen (eds).
 Springer-Verlag, London.