Recently, finger-vein authentication has been a rising bio-detection technique for its outstanding security, biologic maintenance, accuracy and speed. To deal with the rotation in finger-vein image, the edge of finger in the image is detected and the inclination angle is calculated. However, considering the device universally used in finger-vein authentication, in order to detect finger-veins more clearly and get more features, illumination is not evenly distributed, so the conventional edge detection methods are affected by different illuminative backgrounds of the finger. Therefore, a new simple but effective edge detection algorithm specially designed for finger-vein authentication is proposed and evaluated in this paper. Experiments based on 5,000 finger-vein images show that the proposed algorithm provides higher accuracy than conventional methods.
CITATION STYLE
Ren, H., Xuda, D. X., & Li, W. (2016). An edge detection algorithm for nonuniformly illuminated images in finger-vein authentication. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (Vol. 9967 LNCS, pp. 255–262). Springer Verlag. https://doi.org/10.1007/978-3-319-46654-5_28
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