Your Improved Life, Our Best Technology
Biometrics identification can be generally divided into two categories: physical features and behavioral features.
Physical features include face, fingerprint, palmprint, hand geometry , retina, iris, and even blood vessels, DNA, bones, etc. Behavioral features include signature, voice, gait and so on.
A biometric identification system collects biological features and converts them into some digital codes. The codes can then collected into feature templates. When a person interacts with the identification system for authentication, the identification system will compare the lively captured features with the template stored in the database to evaluate the likelihood of the person to the database records, and then determine to accept or deny the verification.
The above picture shows six of the most widely used biometric identification methods. Among these six biometrics, face identification and the voice/handwriting identification has much less privacy concern, and the other four identification methods are constrained by law, as they need the cooperation of identified person. However, the voice and handwriting are extremely easy be imitated, therefore the face identification is the only technology with high accuracy as a Security / Attendance systems with little privacy concern.