Dr. Zhendong Ye Profile

Dr. Zhendong Ye

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Proceedings Article | 13 January 2012 Paper

An effective one-dimensional anisotropic fingerprint enhancement algorithm

Zhendong Ye, Mei Xie

Proceedings Volume 8349, 83491B (2012) https://doi.org/10.1117/12.920273

KEYWORDS: Anisotropic filtering, Image enhancement, Databases, Image filtering, Fingerprint recognition, Biometrics, Machine vision, Image classification, Binary data, Image quality

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Fingerprint identification is one of the most important biometric technologies. The performance of the minutiae extraction and the speed of the fingerprint verification system rely heavily on the quality of the input fingerprint images, so the enhancement of the low fingerprint is a critical and difficult step in a fingerprint verification system. In this paper we proposed an effective algorithm for fingerprint enhancement. Firstly we use normalization algorithm to reduce the variations in gray level values along ridges and valleys. Then we utilize the structure tensor approach to estimate each pixel of the fingerprint orientations. At last we propose a novel algorithm which combines the advantages of onedimensional Gabor filtering method and anisotropic method to enhance the fingerprint in recoverable region. The proposed algorithm has been evaluated on the database of Fingerprint Verification Competition 2004, and the results show that our algorithm performs within less time.

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