Well proven and commercially available biometric technologies versus electrocardiogram: A review

Biometrics is become a necessary technology in today's world. Research is rapidly growing in the field of biometrics. This paper gives the overview of the major Biometric Technologies which is well proven versus Electrocardiogram as biometric authentication tool. A researcher who is planning to work on Biometrics field could use this paper for understanding various biometrics technologies and how biomedicai signal can be interpolated to biometric authentication tool.