Digital Security with Thermal Dorsal Hand Vein Patterns Using Morphological Techniques

Abstract

Many biometrics such as face, finger prints and Iris have been developed extensively for human identification purpose and also to provide authentic input to many security systems in the past few decades. However verification using vein patterns of hand is less evolved and developed compared to other human traits. A new personal verification system using the thermal imaged vein pattern in the back of the hand that is the dorsal part is proposed in this paper. The hand vein pattern images are acquired using thermal tracer, enhanced using normalization and vein patterns are extracted using locally adaptive thresholding and skeletonization techniques. Similarity has been checked using Euclidean distance measure.