How Face Recognition System work

did you ever see such as facial recognition technology in the movies?

The technology used in face recognition tool is a Biometric technology. Because face recognition can not be separated from the biometric, let us learn first about the biometric.

Biometrics is a method to recognize a unique human being. In the application, is used as a biometric access arrangement that allows someone to enter a resource. example: the room, a safe, documents, etc. if the data received by the biometric system is indeed valid (exist in database systems).

Based on the characteristics, Biometrics consists of two classes:

a.Psychological: Biometric analysis of this kind of physical human eyes, face, fingerprints, DNA, and hand lines.

b.Behavior: Biometric analysis of this type against an individual nature. For example: the rhythm of typing, handwriting, and gait, and voice. Some researchers use the term biometric Behaviometric for this species.

Facial Recognition System

Facial Recognition System is a computer application that is used to identify or verify an individual's or a digital image of a frame on the video. One way system do the facial recognition is to retrieve the data in the form of individual digital image and compare itwith the digital image data in the database system. These systems are typically used as a security system. However, there also are using this system as a fugitive search systemin the field of law enforcement such as those used by the German State Police, and the U.S. This system is a "brother" of fingerprint recognition systems (fingerprint recognitionsystem) and the iris recognition system (Recognition System).

How To Face Recognition System works
Identix, a company located in Minnesota USA, is one of the developers of facial recognition technology. With software called Facelt, they can take pictures of someone's face in the crowd even though it is, sort of the face image and comparing it with the image contained in the database. software will make the distinction between basicfacial image and the rest of the background image. Facial recognition software is based on the ability to recognize a face and then measure the variation of facialfeatures.


Facelt define the surface of the face as a nodal point. Each face has at least 80 nodalpoints. The software will measure the distance between the eyes, wide nose, holloweyes, the shape of the cheekbones, jaw line and length. Nodal points are measured by making a numerical code called 'Faceprint', and represents the face contained in thedatabase.


3 Dimensional Face Recognition Tool
The latest model of a face using three-dimensional models, which claimed to be moreaccurate. Taking a real time 3D image of a face, 3D face recognition using a specialfeature on the face (the muscle tissue and bone that looked rough, like the basin of the eyes, nose and chin) in identifying the subject. Because this area is considered quite unique and will not change until whenever.


By using 3D software, the system performs a number of steps to verify the identity ofeach person. Starting from the detection image, adjust the face, the measurement offacial images into a template to manufacture a unique code made​​. Further matching and verification or identification made ​​to the database, of all departments. If theidentification is successful, the process will continue with the verification matching 'SkinBiometric' as described previously.