Biometric recognition for safe transaction using vein authentication system

This paper presents a review on the finger vein authentication device that uses blood vessel patterns as a personal identifying factor. The vein information is hard to duplicate since veins are internal to the human body. A reliable biometric system should recognize the person based on his physiological or behavioural characteristics. Today security becomes the most important aspects in this world so most of the country taken biometrics as a tool to solve the above mentioned problem. Some of the popular biometric techniques are fingerprint, face, hand/ finger geometry, iris, retina, signature, gait, voice, hand vein, or the DNA information. Vein technology is the fast growing technology today and veins are available beneath the person's skin. It was introduced to the world in 1992. The researchers paid their attention to this finger vein in the last ten years. The finger vein technology is different for each individuals and even it is different for the twins. It wont change even age grows. The finger vein is extracted from the patterns which are present inside the skin so the authentication is high compared to finger, face biometric technology. The two important methods which are used to acquire image from finger vein are contact and non contact methods. Non contact method is becoming popular around the world among the people. Contact method is similar to that of fingerprint enrolment technique. The authentication rate of finger vein technology is same as that of iris but the most disadvantage of iris is the application of light directly to the eye. So among the biometric techniques the finger vein technology is highly encouraging the researchers to develop more applications.