IEICE Electronics Express
Online ISSN : 1349-2543
ISSN-L : 1349-2543
LETTER
High-resolution orientation field estimation based on multi-scale Gaussian filter
Changlong JinHakil Kim
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JOURNALS FREE ACCESS

2009 Volume 6 Issue 24 Pages 1781-1787

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Abstract

Orientation field plays the most important role in fingerprint recognition. Proposed in this paper is a novel approach of pixel-wise orientation field estimation using multi-scale Gaussian filter. A three-stage averaging framework in pixel-scale, block-scale, and orientation-scale is developed for handling gradient vectors, coherence data, and orientation vectors, respectively. Experimental results on various FVC datasets show the proposed algorithm achieves accurate orientation field estimation which is robust to local defects, such as scar, low contrast, ridge discontinuity, smudged area, etc. with a low computational cost.

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© 2009 by The Institute of Electronics, Information and Communication Engineers
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