A fingerprint image recognition method for network user identification

This paper proposes a software-oriented fingerprint image recognition method for user identification in information network systems. In the scheme, the registered fingerprint information extracted from a thinned binary image with 1-pixel line width is compared against the thinned input fingerprint binary image with w-pixel line width (w⩾2). Since minutiae of fingerprints are not used, image reconstruction, which consumes much time, is unnecessary. Mechanisms to reduce the matching time are shown. Applications for user identification of terminal users and cardholders of smart cards are introduced