A fingerprint authentication system based on mobile phone

With the increasing volume of sensitive and private information stored in the mobile phone, the security issue of mobile phone becomes an important field to investigate. This paper proposes a fingerprint authentication system for mobile phone security application. A prototype of our system is developed from the platform of BIRD E868 mobile phone with external fingerprint capture module. It is composed of two parts. One is the front-end fingerprint capture sub-system, and the other is back-end fingerprint recognition system. A thermal sweep fingerprint sensor is used in the fingerprint capture sub-system to fit the limitations of size, cost, and power consumption. In the fingerprint recognition sub-system, an optimized algorithm is developed from the one participated in the FVC2004. The performance of the proposed system is evaluated on the database built by the thermal sweep fingerprint sensor.