Otimização do Cálculo do Tempo da Orientação de Campo e da Binarização de Imagens de Impressões Digitais (Optimization of Calculation of Field Orientation Time and Binarization of Fingerprint Images)

Luciano Xavier Medeiros (xmluc@yahoo.com.br), Edna Lúcia Flôres (edna@ufu.br), Gilberto Arantes Carrijo (gilberto@ufu.br), Antônio Claúdio Paschoarelli Veiga (acpveiga@ufu.br)


Universidade Federal de Uberlândia
This paper appears in: Revista IEEE América Latina

Publication Date: Sept. 2011
Volume: 9,   Issue: 5 
ISSN: 1548-0992


Abstract:
The field orientation and the binarization in an image are often used in fingerprint identification and authentication, and analysis of textures. The proposed algorithm reuses the additions and multiplications in the calculation of the field orientation using the switching property and uses the Digital Differential Analyzer (DDA) algorithm in the generation of convolution masks for the binarization of fingerprint images. The performance of the processing time and the result of the proposed binarization algorithm compared to the performance of algorithms that use convolutions masks were satisfactory compared to the other algorithms found in literature.

Index Terms:
Field orientation, commutative property, DDA algorithm, ridge extraction   


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