Liveness Detection in Different Biometric Traits: An Overview
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Abstract
Abstract: Biometrics is used as an alternative for password based authentication systems and it becomes increasingly attractive now a day. Despite of its popularity, biometric systems are vulnerable to spoof attacks, which can decrease the security of the system. In order to protect the system against spoof attacks, liveness detection can be integrated with biometric system and it can distinguish between real and fake sample at the very first sensor module level. Liveness detection has the capability to detect the biometric sample is alive or not. This paper includes basic introduction of liveness detection, various attack point in the biometric system and various techniques used in biometric traits to detect their life signs.
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