Resumo

SANTANA FERNANDEZ, Ramón; MACHADO CENTO, Adrián A.  e  ESTRADA SENTI, Vivian. Method for minutiae representation and identifying information extraction on fingerprint templates. Rev cuba cienc informat [online]. 2015, vol.9, n.4, pp. 132-141. ISSN 2227-1899.

Identifying people using biometric features such as fingerprints, it is considered a secure authentication mechanism. Cryptographic systems proposed for the protection template fingerprint minutiae need to perform the alignment process of the biometric templates due to variability of data in different samples of the same feature. Alignment models proposed in the literature base their operation on the selection of a focal point, the formation of structures of minutiae or detection of the singularities of the fingerprint. These features may or may not be present in the fingerprint, they may vary from one sample to another and may be selected wrongly, consequently resulting in loss of performance of authentication system. This research aims at developing a method of representing the information contained in the minutiae templates and identifying characteristics extraction, rotation and translation invariant, which enables the analysis of the characteristics of the minutiae obtained locally and overall, to lessen the impact of the elimination of real minutiae and the inclusion of false minutiae, using the combination of two structures minutiae. The process consists of 3 stages: formation of the complex structure of minutiae extraction invariant to rotation and translation characteristics from triplets and classification of the extracted features. The comparison process is performed by calculating similarity between each complex structure.

Palavras-chave : minutiae structure; information representation; minutiae template; template protection.

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