It is not just a necessity but it is a must thing to have. Today, in the market there are many security systems available. They actually work on different technologies. To authenticate the person you need to take different factors in concern. For example, to give the access to any person log cards require scanning barcode and biometric access control require scanning of real human features like voice, finger prints, eye retina, and face itself .Each has its own advantage and disadvantage. According to these systems the cost depends as per the security level they provide.
Face recognition system is one type of system which depends on biometric technology. Whole face of the person is scanned by face recognition system. It includes distance between eye and nose, stains on face, distance between two eyes, shapes of face, retina scan and others. Below are few benefits of face recognition system is explained.
Maintenance free system
Biometric access control system is single time cost system. You have to maintain a simple database once you have installed them. Easily and without any cost you can add or remove authorized persons. On other side, then you have to issue identity card of every authorized person if you use identity card. It can even lead to more cost. There is also a threat of losing identity card. In some places you will also find Face Recognition Thermometer.
Automatic Continuous scanning
Each and everything stays under full security. If one has authenticated and opens a door, and without authentication if a second person tries to enter then the system detects it and alarms the threat. It indicates that person without authentication can't get entry.
Speed of scan
You need to put your eye against the system. It does need perfect placement of face. It takes a lot time to authenticate hundreds of person. Along with the start of face recognition system scans from the front and until you reach near the gate system opens it for you. At Door Access Control where thousands of people pass through every day it is really good.
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