An Adaptive Algorithm for Smoothing Fingerprint Orientation Fields

Author

Can, Xiang ; Lin, You

Author_Institution

Dept. Sch. of Math. & Stat., Hainan Normal Univ., Haikou, China

Volume

1

fYear

2009

fDate

6-7 June 2009

Firstpage

70

Lastpage

72

Abstract

The traditional algorithm for smoothing fingerprint orientation fields was based on the low-pass filter. To improve this algorithm, a variable window adaptive smoothing algorithm for the fingerprint orientation fields is proposed based on the fingerprint orientation consistency. Our algorithm uses the correctness of the fingerprint orientation field to compute the weighted average of the orientation field. Experiments show that our algorithm can effectively deal with the orientation field images which have noises and really describe the topological structure of the fingerprint ridge.

Keywords

fingerprint identification; low-pass filters; smoothing methods; adaptive algorithm; fingerprint orientation consistency; fingerprint ridge; low-pass filter; smoothing fingerprint orientation fields; variable window adaptive smoothing; Adaptive algorithm; Adaptive filters; Computational intelligence; Filtering; Fingerprint recognition; Image matching; Nonlinear filters; Pixel; Shape; Smoothing methods; Adaptive filtering; Fingerprint; Orientation field; Smoothing; Weighted average;

fLanguage

English

Publisher

ieee

Conference_Titel

Computational Intelligence and Natural Computing, 2009. CINC '09. International Conference on

Conference_Location

Wuhan

Print_ISBN

978-0-7695-3645-3

Type

conf

DOI

10.1109/CINC.2009.197

Filename

5231510