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Biosensors

Identification of individuals is a very basic societal requirement. Electronic  verification  of  a  person’s  identity  is  of  great  importance as  more  interactions  take  place  electronically. Biometric  fingerprint  identification  is a  technique  used  to  change  the  physical  attribute  of  a  person  i.e.; his  finger  print  into  electronic  processes. Until  recently  electronic  verification  was  based  on  something  the  person  had  in  their  possession  like  a  password. But  the  problem  is  that  these  forms  aren’t  very  secure  because  passwords  can  be  forgotten  or  taken  away. In  biometric  finger  print  identification  a  scanner  is  used  to  get  the  image  of  the  finger. When a  user  places  his  or  her  finger  on  the  terminals  of  scanner  the  image  is  electronically  read, analyzed and  compared  with  a  previously  recorded  image  of  the  same  finger,  which  has  been  stored  in  finger  scan  data  base.  Finger  print  is  a  proven  technology  capable  of  high  levels  of  accuracy.

Biometric fingerprint identification has many usability advantages over traditional systems such as passwords.  Specifically, users can never lose their fingerprints, and the fingerprint is difficult to steal or forge.  The intrinsic bit strength of a fingerprint is quite good when compared to conventional passwords.  Finger scanners are getting smaller, cheaper, and more accurate, and can be used in mobile gadgets without sprucing up the size, cost, and power consumption.  By using this technology theft can be prevented and can also eliminate fraudulent transactions.  Mobile manufacturers and wireless operators are incorporating voice and fingerprint scanning techniques in their devices.  Fingerprint is a very strong desktop solution, and it is anticipated that the desktop will become a device for biometric revenue derived from product sales and transactional authentication.  Most middleware solutions leverage a variety of fingerprint solutions for desktop authentication.

Fingerprint is a proven technology capable of high levels of accuracy.  Strong fingerprint solutions are capable of processing thousands of users without allowing a false match, and can verify nearly 100% of users with one or two placements of a finger.  Because of this, many fingerprint technologies can be deployed in application where either security or convenience is the primary driver.  Reduced size and power requirements, along with fingerprint’s resistance to environmental changes such as background light and temperature, allow the technology to be deployed in a range of logical and physical access environments.  Fingerprint acquisition devices have grown quite small sensors slightly thicker than a coin, and smaller than 1.5 cm x 1.5 cm, are capable of acquiring and processing images.  Thus fingerprint has emerged as a highly distinctive identifier, and classification, analysis and study of fingerprints has existed for decades.

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