Because of high restriction on False Reject Rate

False Accept Rate

computational time cost and template size

fingerprint verification is a challenging task.A novel feature named complex direction feature is proposed in this paper

which consists of ridge rotation direction and four local relative directions.The fingerprint verification consists of two stages: complex direction feature based minutiae alignment

which speeds up alignment;matching score calculation by complex direction feature

which makes matching more robust.Experiments were performed on the fingerprint database used by Fingerprint Verification Competition

and the experimental results show that the proposed algorithm can achieve reliable and fast fingerprint verification.