Abstract
Recently, distortion rectification based on a single fingerprint image has been shown to be able to significantly improve the recognition rate of distorted fingerprints. However, the computational complexity of such a method is too high to be useful in practice. In this paper, we propose a novel method for the rectification of distorted fingerprints, whose speed is over 30 times faster than the existing method. This significant speedup is due to a Hough-forest-based two-step fingerprint pose estimation algorithm and a support vector regressor-based fingerprint distortion field estimation algorithm. Experimental results on public domain databases show that our method can achieve as good rectification performance as the existing method but meanwhile is significantly faster.
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