Prof. Jie Yang Profile

Prof. Jie Yang

Teacher at Wuhan Univ

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Proceedings Article | 19 June 2017 Paper

Research and implementation of finger-vein recognition algorithm

Zengyao Pang , Jie Yang, Yilei Chen, Yin Liu

Proceedings Volume 10443, 104430D (2017) https://doi.org/10.1117/12.2280246

KEYWORDS: Image processing, Feature extraction, Image quality, Infrared imaging, Infrared radiation, Image sensors, Detection and tracking algorithms, Veins, Fuzzy logic, Image compression

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In finger vein image preprocessing, finger angle correction and ROI extraction are important parts of the system. In this paper, we propose an angle correction algorithm based on the centroid of the vein image, and extract the ROI region according to the bidirectional gray projection method. Inspired by the fact that features in those vein areas have similar appearance as valleys, a novel method was proposed to extract center and width of palm vein based on multi-directional gradients, which is easy-computing, quick and stable. On this basis, an encoding method was designed to determine the gray value distribution of texture image. This algorithm could effectively overcome the edge of the texture extraction error. Finally, the system was equipped with higher robustness and recognition accuracy by utilizing fuzzy threshold determination and global gray value matching algorithm. Experimental results on pairs of matched palm images show that, the proposed method has a EER with 3.21% extracts features at the speed of 27ms per image. It can be concluded that the proposed algorithm has obvious advantages in grain extraction efficiency, matching accuracy and algorithm efficiency.

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