We propose a gradient-based method to extract the orientation field of a fingerprint image, and an iterative algorithm to refine and regularise this field. The formulation of this iterative algorithm is based on two new integral operators, which are described together with their main properties. A preprocessing step is also proposed in order to enhance the performance of the whole procedure. The results of our tests on real fingerprint images are provided to show the performance of the proposed approach.

Extraction and Refinement of Fingerprint Orientation Field

Maponi, Pierluigi;Piergallini, Riccardo;Santarelli, Filippo
2017-01-01

Abstract

We propose a gradient-based method to extract the orientation field of a fingerprint image, and an iterative algorithm to refine and regularise this field. The formulation of this iterative algorithm is based on two new integral operators, which are described together with their main properties. A preprocessing step is also proposed in order to enhance the performance of the whole procedure. The results of our tests on real fingerprint images are provided to show the performance of the proposed approach.
2017
9781921987717
273
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11581/407605
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact