Palmprints have been widely studied for personal authentication because they are highly accurate and incur low costs. Most of the previous work has focused on two-dimensional palmprint identification. However, the inner surfaces of palms not contain only texture information, but also shape information. Unfortunately, two-dimensional palmprint systems lose the shape information when capturing palmprint images. Hence, three-dimensional information is important for palmprint systems. In this chapter, we have designed and developed a novel three-dimensional palmprint acquisition system based on structured-light imaging technology. The acquisition system can obtain palmprint three-dimensional information and at the same time, the corresponding two-dimensional texture, which are used for personal authentication. A three-dimensional palmprint database has been established by using the developed acquisition system, and the testing results illustrate the effectiveness of our system.
Keywords3D palmprint measurement Biometrics Structured-light imaging Palmprint depth
- Cyberware Inc (2010) Cyberware rapid 3D scanners. http://www.cyberware.com/. Accessed 21 May 2012
- Fratric I, Ribaric S (2008) Colour-based palm print verification: an experiment. In: The 14th IEEE mediterranean. doi:10.1109/MELCON.2008.4618550
- Konica Minolta Sensing Inc (2010) Konica Minolta VIVID 9i/910. http://www.3dscanco.com/products/3d-scanners/3d-laser-scanners/konica-minolta/. Accessed 1 July 2012
- Sun ZN, Tan TN, Wang Y, Li SZ (2005) Ordinal palmprint representation for personal identification. In: Proceeding of IEEE international conference on computer vision and pattern recognition, pp 279–284. doi:10.1109/CVPR.2005.267
- Wong M, Zhang D, Kong WK, Lu G (2005) Real-time palmprint acquisition system design. IEE Proc.Vis Image Signal Process. doi:10.1049/ip-vis:20049040