JPEG Compression Effects on a Smart Card Face Verification System

We discuss the effect of a compression scheme to be applied to image data in a smart card based face verification system. Accordingly, we propose a system architecture considering trade-off between performance versus the improvement of memory and bandwidth management. In order to establish the system limitations, studies were performed on BANCA, XM2VTS and FERET databases demonstrating that by using JPEG compression on face representations, the verification performance of the system is not degraded and that the proposed architecture is a viable one allowing also the possibility of non-optimum selection of normalisation parameters in the preprocessing stage. Different results were achieved on different databases, indicating that the use of different operating scenarios for system evaluation may call for different optimum operating points.