A Gabor filter based fingerprint enhancement algorithm in wavelet domain

Author

Wen, Miao-Li ; Liang, Yan ; Pan, Quan ; Zhang, Hong-cai

Author_Institution

Coll. of Autom., Northwestern Polytech Univ., Xi´´an, China

Volume

2

fYear

2005

fDate

12-14 Oct. 2005

Firstpage

1468

Lastpage

1471

Abstract

Fingerprint image enhancement is very essential in an automated fingerprint identification system. In this paper, we propose a new fingerprint enhancement algorithm, which can improve the clarity and continuity of ridge and valley structures. A normalized fingerprint image is decomposed into approximation and detail sub-images, then estimate the approximation image´s orientation. Finally, using Gabor filter to enhance the fingerprint image in wavelet domain and reconstruct the fingerprint. We have tested the algorithm on FVC2004 fingerprint database DBl. Experiment results indicate that the algorithm has dramatic effect to low quality fingerprint images and processing time is short than fingerprint image enhancement based on Gabor filter.

Keywords

Gabor filters; fingerprint identification; image enhancement; image resolution; wavelet transforms; FVC2004; Gabor filter; automated fingerprint identification system; fingerprint database; fingerprint enhancement algorithm; fingerprint image enhancement; image orientation estimation; normalized fingerprint image; wavelet domain; Approximation algorithms; Biometrics; Fingerprint recognition; Frequency domain analysis; Frequency estimation; Gabor filters; Image enhancement; Image matching; Image reconstruction; Wavelet domain;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications and Information Technology, 2005. ISCIT 2005. IEEE International Symposium on

Print_ISBN

0-7803-9538-7

Type

conf

DOI

10.1109/ISCIT.2005.1567148

Filename

1567148