Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/76124
Type: Artigo de periódico
Title: A multiscale directional operator and morphological tools for reconnecting broken ridges in fingerprint images
Author: Oliveira, MA
Leite, NJ
Abstract: In this paper, we introduce a multiscale operator which, together with some morphological tools, can be used to reconnect broken components of fingerprint images. This operator, which can be applied to both binary and gray-scale pictures, extracts the orientation field of an image by taking into account information parameters of sets of pixels in a given neighborhood and located in different directions. It has proved to be very robust to noise and outperforms the gradient- and directional mask-based methods, generally used for orientation field definition. Although we illustrate its application in the fingerprint domain, the approach described here can be easily extended to images whose components exhibit well-defined directional information. (C) 2007 Pattern Recognition Society. Published by Elsevier Ltd. All rights reserved.
Subject: fingerprints
multiscale directional information
mathematical morphology
image enhancement
Country: Inglaterra
Editor: Pergamon-elsevier Science Ltd
Rights: fechado
Identifier DOI: 10.1016/j.patcog.2007.05.019
Date Issue: 2008
Appears in Collections:Unicamp - Artigos e Outros Documentos

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