Face recognition technology is the least intrusive and fastest biometric technology. Instead of requiring people to place their hand on a reader or precisely position their eye in front of a scanner, face recognition systems unobtrusively take pictures of people's faces as they enter a defined area. It provides flexible biometric verification. It is a powerful technology capable of serving a broad spectrum of security applications, such as with police forces and customs services, but also rapidly extending its reach to more commercial arenas.
Facial recognition involves no contact and its implementation does not require any highly specialized tools, making it ideal for identifying individuals in crowds and public spaces. Face recognition technology has a very wide range of applications; for instance, using the built-in camera of a Smartphone, tablet or computer, facial recognition software can replace passwords for device and user account access. In law enforcement, the technology can aid in the identification of suspects. Another popular application for facial recognition systems is access control at high-value sites. In the commercial sector, retailers and marketers are adopting the technology as a means to gather crucial demographic data.