基于直线曲线混合Gabor滤波器的指纹增强算法

doi:10.11896/j.issn.1002-137X.2016.6A.035

Abstract

Abstract: Fingerprint enhancement has a great significance on improvement of the accuracy of automatic fingerprint identification System(AFIS).To balance the weakness of straight-line Gabor filter in extremely curved region and the high computation complexity of curved line Gabor filter,a novel straight-curved line Gabor filter was proposed in this paper.First,orientation coherence was utilized to divide the fingerprint into curved and smooth regions.Then implemented curved-line filtering and straight-line filtering on curved and smooth regions respectively.Experiments on FVC2002 show that the proposed method achieves comparable enhancement effect and 1.404 times faster calculating speed,compared with curved-line Gabor.

Key words: Fingerprint identification,Fingerprint enhancement,Gabor filter,Curved region

MEI Yuan, ZHAO Bo and ZHU Zhi-dan. Fingerprint Enhancement Based on Straight-curved Line Gabor Filter[J].Computer Science, 2016, 43(Z6): 149-151.

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Fingerprint Enhancement Based on Straight-curved Line Gabor Filter

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