Radiation optimization and image processing algorithms in the identification of hand vein patterns

Vein pattern recognition is one of the newest biometric techniques researched today. While the concept behind the method is simple, there are various challenges to be found throughout the design and implementation of a vein-scanning device concerning the lighting system and the image processing algorithms. To achieve low scanning errors, the acquired image should be almost noiseless and the algorithms should detect the vein pattern in various conditions. Many implementations of this method are now in a commercial phase and there is a great need for low cost systems that can detect human veins with minimum computational requirements. (C) 2009 Elsevier B.V. All rights reserved.