Feature Fusion Techniques

Researcher introduced biometric system to improve the security because nowadays, the world is becoming more insecure. The term Biometrics is derived from the Greek composite words bio and metric. Bio means life and metric means to measure. Biometrics basically is a measure and analysis of human physiological and behavioral characteristics to identify and verify the person. First biometric are introduced in China in 14th century [56]. In 1890, Alphonse Bertillon, an anthropologist introduced biometric in Europe to identify criminals. In the past two decades, there has been an explosion in the biometric industry, where a variety of biometric techniques have been introduced in the market [46]. Some of these biometric techniques measure the human physiological characteristics (such as fingerprints, speech, eye retinas and irises, facial patterns, DNA and hand measurements [76] etc) and behavioral characteristics (such as speaker, signature and keystroke etc).