Abstract:
There are several access control systems available in the market, which uses different
mechanisms to authenticate the users. Passwords, cards with barcode, card with magnetic
systems and signature are the traditional mechanisms used in access control systems. Also
there are lots of modem techniques used for recognizing people in existing systems. Some
of them are finger prints, retina recognition, ear recognition, voice recognition, hand
geometry recognition etc ... In all those systems there are some drawbacks. In finger print
recognition, finger print can be copied & can be misused, retina recognition requires
expensive high quality camera, ear recognition is difficult to implement.
