A Fingerprint Matching Algorithm Based on B-Spline Curves

This paper adopts the thought of curve recognition, and a new fingerprint matching algorithm based on mathematics curve theory is presented. In this algorithm, stated data point vectors are extracted firstly at the reliable region of different ridges, then the corresponding control point vectors of B-Spline curves are worked out, the control points should contain all information of ridges. Control point vectors are stored as fingerprint template. Finally we analyze the vectorspsila Euler distance between observed fingerprint and template to realize matching. Experimental results prove that this algorithm based on curve theory has good antinoise ability and high recognition precision.