The pixel alignment based algorithm for continuous orientation field estimation

• Autorzy: Więcław Ł. , Porwik P.
• Języki publikacji: EN

Abstrakty

EN

This paper presents a new estimation method of fingerprint orientation field. An accurate estimation of fingerprint orientation fields is an essential step in automatic fingerprint recognition systems (AFIS). Most popular, gradient-based method is very sensitive to noise (image quality). Proposed algorithm is a modification of, more resistant to noise, mask-based method, which provides orientation limited to discrete values. This modification is based on aggregation of pixel values differentiation and was used to more precise estimation of magnitude of orientation vectors. This approach allows to obtain a continuous values of orientation field still maintaining robust to noise.

Słowa kluczowe

EN

fingerprint recognition; directional image; orientation field

PL

rozpoznawanie odcisków palców; obraz kierunkowy; orientacja pola

• Wydawca: University of Silesia, Institute of Informatics, Computer Systems Department
• Czasopismo: Journal of Medical Informatics & Technologies
• Rocznik: 2010
• Tom: Vol. 15
• Strony: 47--52
• Opis fizyczny: Bibliogr. 19 poz., rys.

Twórcy

autor

Więcław Ł.

• University of Silesia, Institute of Computer Science, 41-200 Sosnowiec, Będzińska 39, Poland

autor

Porwik P.

Bibliografia

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