Finger Vein Image Recognition Based on Tri-value Template Fuzzy Matching

In order to reduce the effect of fuzzy edges and tips of vein feature image in the template matching,we present a tri-value template fuzzy match algorithm,which segments the vein feature image into three areas: subject area,fuzzy area and background area;compute the average distance between the non-background areas as the similarity score between the matching templates.It is robust against the fuzzy edges and tips by increase the distance norm to the fuzzy area.The recognition accuracy rate,99.46%,to 456 near-infrared finger vein images,shows that our proposed method is feasible and practical.