Indexing and retrieving in fingerprint databases under structural distortions
2012; Elsevier BV; Volume: 40; Issue: 8 Linguagem: Inglês
10.1016/j.eswa.2012.12.004
ISSN1873-6793
AutoresAndrés Gago-Alonso, José Hernández-Palancar, Ernesto Rodríguez-Reina, Alfredo Muñoz-Briseño,
Tópico(s)Data Management and Algorithms
ResumoThis paper presents a new algorithm for fingerprint indexing, which is based on minutia triplets, and it is very tolerant to missing and spurious minutiae. In this sense, a novel representation for fingerprints is proposed by defining a triangle set based on extensions of Delaunay triangulations. Moreover, a set of robust features is used to build indices. Finally, a recovery method based on calculating the recommendation score is introduced, using a new similarity function between geometric transformations. Our proposal was tested on well known databases, showing that it outperforms most of the already reported methods, especially under conditions of distortions.
Referência(s)