Mr. Davrondzhon Gafurov Profile

Davrondzhon Gafurov

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Proceedings Article | 28 January 2010 Paper

Robust minutiae hash for fingerprint template protection

Bian Yang, Christoph Busch, Patrick Bours, Davrondzhon Gafurov

Proceedings Volume 7541, 75410R (2010) https://doi.org/10.1117/12.838998

KEYWORDS: Biometrics, Binary data, Information security, Detection and tracking algorithms, Databases, Quantization, Error analysis, Fingerprint recognition, Image processing, Standards development

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A robust fingerprint minutiae hash generation algorithm is proposed in this paper to extract a binary secure hash bit string from each fingerprint minutia and its vicinity. First, ordering of minutiae points and rotation and translation geometric alignment of each minutiae vicinity are achieved; second, the ordered and aligned points are diversified by offsetting their coordinates and angles in a random way; and finally, an ordered binary minutia hash bit string is extracted by quantizing the coordinates and angle values of the points in the diversified minutiae vicinity. The generated hashes from all minutiae vicinities in the original template form a protected template, which can be used to represent the original minutia template for identity verification. Experiments show desirable comparison performance (average Equal Error Rate 0.0233 using the first two samples of each finger in FVC2002DB2_A) by the proposed algorithm. The proposed biometric reference requires less template storage capacity compared to their unprotected counterparts. A security analysis is also given for the proposed algorithm.

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