Biometric authentication relies on the use of biometric templates. A person seeking to access a biometrically controlled system must first identify himself/herself and the system will then verify a match with his/her stored template, created during an enrolment procedure. Such systems are intended for long-term deployment. Hence invariance to human ageing is an important element of any biometric system. The majority of human biometrics such as face, fingerprint, handwriting, iris and voice are subject to ageing effects. Other chapters in this book discuss many of these modalities at length. Here we will focus on speech. Speech is the least intrusive biometric from a user perspective. It can be used independently, or combined with other modalities such as face in multimodal systems.
The impact of ageing on speech-based biometric systems, Page 1 of 2
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