A Survey of Automated Biometric Authentication Techniques

Biometric identification refers to the automatic identification of a person by analyzing their physiological or behavioral characteristics. Since many physiological and behavioral characteristics are unique to an individual, biometrics provides a more dependable system of authentication than ID cards, keys, passwords, or other standard systems. A wide range of organizations are using automated person authentication systems to improve customer fulfillment, operating efficiency as well as to secure difficult resources. Now a day an increasing number of countries including India have decided to adopt biometric systems for national security and identity evil prevention, which makes biometrics an important component in security-related applications such as logical and physical access control, forensic investigation, IT sector, identity crooked protection, and terrorist prevention. Various biometric authentication techniques are available for identifying an individual by measuring fingerprint, hand, face, signature, voice or a combination of these traits. New biometric algorithms and technologies are proposed and implemented every year. This paper aims to give a brief overview of the field of biometrics and summarize various biometric identification techniques including its strengths and week.