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Network and System Security, International Conference on (2010)
Melbourne, Victoria Australia
Sept. 1, 2010 to Sept. 3, 2010
ISBN: 978-0-7695-4159-4
pp: 216-222
In this paper, a new orientation-based method which operates in two-step, called in Dynamic Processing (DP) system, is proposed for the determination of fingerprint reference point. For the two-step operation, it uses different orientation features at different scales: block-based orientation certainty and pixel-based segmented direction map. A block-based orientation certainty is used to describe the change of a block curvature of a fingerprint, which is determined by two eigenvalues of the gradient covariance matrix and a pixel-based segmented direction map is used to find intersections emerging from the directional transition. The DP system is built through their cross-references to determine the position of reference point. While the proposed system has the pixel-based precision by virtue of using a pixel-based segmented direction map, it reduces many possible fault symptoms by virtue of using a block-based orientation certainty. The proposed technique shows better performance in accuracy rate than other previous techniques. The performance of the proposed one is verified through simulations and its analysis.
fingerprint recognition, reference point, pixel direction, orientation certainty, block direction

S. J. Xie, J. Shin, D. S. Park, H. Gong and S. Yoon, "Fingerprint Reference Point Determination Based on Orientation Features," Network and System Security, International Conference on(NSS), Melbourne, Victoria Australia, 2010, pp. 216-222.
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