Background: With the advances in current technology, hand gesture recognition has gained considerable attention. It been extended to recognize more distinctive movements, such as a signature, human-computer interaction (HCI) which enables computer identify person non-contact acquisition environment. This application is known in-air signature recognition. To our knowl...

Authentication based on biometrics is being used to prevent physical access high-security institutions. Recently, due the rapid rise of information system technologies, now in applications databases and commercial workflow systems. These need implement measures counter security threats. Many developers are exploring developing novel authentication techniques these attacks. However, most challen...