The modern face recognition, especially through the analysis and comparison of the human visual characteristic information for identification of computer technology. Specifically, it is through the video acquisition device for object recognition of facial images, using the core algorithm of the facial features location calculation and analysis, face shape and point of view, thus and its own database compare the existing model, and finally determine the user's real identity. This is a high-end computer image processing technology.
On a global scale, face recognition system research began in the 1960 s. Face recognition has the advantage of the natural and the characteristics of the tested individual unseen. Naturalness, refers to the recognition method with human (or even other creature) when used to identify the individual use of the biological characteristics of the same. Face recognition is by observing the comparison to distinguish and confirm the identity of the face. Don't detect characteristics will make the identification method is not offensive, and because it is not easy to attract the attention of people is not easy to be deceived. Relative to the fingerprint identification, face recognition has the characteristics of non-contact (non intrusive), more friendly, natural, therefore, are more likely to be accepted by people.
With the development of science and technology, the application of face recognition technology already is nothing new.