Ciência-IUL
Publicações
Descrição Detalhada da Publicação
Título Revista
IET Computer Vision
Ano (publicação definitiva)
2012
Língua
Inglês
País
Reino Unido
Mais Informação
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Abstract/Resumo
This study proposes a biometric system for personal identification based on three biometric characteristics from the hand, namely: the palmprint, finger surfaces and hand geometry. A protection scheme is applied to the biometric template data to guarantee its revocability, security and diversity among different biometric systems. An error-correcting code (ECC), a cryptographic hash function (CHF) and a binarisation module are the core of the template protection scheme. Since the ECC and CHF operate on binary data, an additional feature binarisation step is required. This study proposes: (i) a novel identification architecture that uses hand geometry as a soft biometric to accelerate the identification process and ensure the system's scalability; and (ii) a new feature binarisation technique that guarantees that the Hamming distance between transformed binary features is proportional to the difference between their real values. The proposed system achieves promising recognition and speed performances on two publicly available hand image databases.
Agradecimentos/Acknowledgements
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Palavras-chave
Classificação Fields of Science and Technology
- Ciências da Computação e da Informação - Ciências Naturais
- Engenharia Eletrotécnica, Eletrónica e Informática - Engenharia e Tecnologia
Registos de financiamentos
Referência de financiamento | Entidade Financiadora |
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PTDC/EEATEL/098755/2008 | Fundação para a Ciência e a Tecnologia |