Adaptive Fingerprint Binarization by Frequency Domain Analysis

Document type: Conference Papers
Peer reviewed: No
Full text:
Author(s): Josef Ström Bartunek, Mikael Nilsson, Jörgen Nordberg, Ingvar Claesson
Title: Adaptive Fingerprint Binarization by Frequency Domain Analysis
Translated title: Adaptiv Fingeravtryck Binarization av Frekvens Domän Analys
Conference name: Fortieth Asilomar Conference on Signals, Systems and Computers
Year: 2006
City: Pacific Grove
ISI number: 000246925201033
Organization: Blekinge Institute of Technology
Department: School of Engineering - Dept. of Signal Processing (Sektionen för teknik – avd. för signalbehandling)
School of Engineering S- 372 25 Ronneby
+46 455 38 50 00
Authors e-mail:,,,
Language: English
Abstract: This paper presents a new approach for fingerprint enhancement by using directional filters and binarization. A
straightforward method for automatically tuning the size of local area is obtained by analyzing entire fingerprint image in the frequency domain. Hence, the algorithm will adjust adaptively to the local area of the fingerprint image, independent on the characteristics of the fingerprint sensor or the physical appearance of the fingerprints. Frequency analysis is carried out in the local areas to design directional filters. Experimental results are presented.
Subject: Signal Processing\General
Signal Processing\Filter Design
Keywords: biometrics, fingerprint, binarization
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