Identificador persistente para citar o vincular este elemento: http://hdl.handle.net/10553/47687
Título: Hand veins segmentation and matching under adverse conditions
Autores/as: López, Sebastián 
González, Albano
Clasificación UNESCO: 3307 Tecnología electrónica
Palabras clave: Image processing
Veins
Image segmentation
Image acquisition
Biometrics, et al.
Fecha de publicación: 2003
Publicación seriada: Proceedings of SPIE - The International Society for Optical Engineering 
Conferencia: Conference on Bioengineered and Bioinspired Systems 
Resumen: Biometric identification based oil hand veins subcutaneous network structure appears as a promising technique for personal recognition due to its robustness, low cost implementation and high users acceptability. Two of the most critical stages in these vein check identification systems are the vein pattern segmentation and matching, which extremely depend on the image acquisition process: The acquisition becomes a bottleneck in the performance of the whole system, as it represents the first stage in the recognition process. In this paper, solutions for the segmentation and matching under poor illumination. conditions during the image acquisition process and low pixel camera resolution are presented. In particular, exhaustive studies will be presented in order to show that the use of the parametric black tophat transform, instead of the classical tophat mathematical morphology tool, and the utilization of homomorphic filters greatly benefit the performance of the segmentation and matching processes. Furthermore, it will be demonstrated that slight vertical and horizontal hand movements in the image acquisition can be easily corrected by using simple scaling operations. This fact makes unnecessary to fix the hand position and thus, contributes to enhance even more the non-invasive condition of these biometric systems. A first prototype for the image acquisition process has been implemented by only using a very simple CDD camera and LED diodes, obtaining infrared images of 60 people. The application of the mentioned techniques on these images, combined with some typical image processing operations like mean and median filtering, skeletonization and pruning, leads to a reliable vein based identification system, even in poor image acquisition conditions.
URI: http://hdl.handle.net/10553/47687
ISBN: 0-8194-4979-2
ISSN: 0277-786X
DOI: 10.1117/12.499035
Fuente: Proceedings of SPIE - The International Society for Optical Engineering[ISSN 0277-786X],v. 5119, p. 166-177
Colección:Actas de congresos
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