Tuesday 20 March 2012

Types of Biometric System

Biometric system is the name of advance security method that is used to bring systematization and high level security at different places like business organizations, buildings, threatening areas and many other commercial and residential areas. These systems help us to maintain the much-deserving security level.
Mostly biometrics systems usually perform their work by recording and comparing biometric characteristics. The data might be in the form of images, voice recognition, signatures or time series data. For efficiency reasons, rather than using recorded characteristics directly, it is usual to extract identifying features from the samples and encode these features in a form that facilitates storage and comparison.
When a person uses any kind of biometric system or facial recognition for the first time, his identifying features stored in the system as a reference for his/her future judgment. When a person once again use this system the computer recall its initial indentifying feature and compare it with current identifying feature to determine whether he/she is a same person or not.
Basically there are two modes for biometric recognition: verification and identification. In verification, access control solutions an identity is required and the comparison procedure is just restricted to checking the reference corresponding to this identity. But in identification, no claim is required and the system searches its orientation database to locate if a stored reference matches the biometric characteristics recorded. There are many types of biometric system available; some of them are given below:
Face Recognition Biometric System
Each individual have different face that belongs to different cultures, races, genders and geographical locations. Face recognition system use unique points of the face and use them for comparing or authentication process. When a person comes in front of the face recognition camera, the system captures its face image without informing that person in its database for future identification. Today, many high standard companies, banks and many security departments use these systems for advance security measurements.
Fingerprint Analysis Biometric System
This is the most common form of biometric system. In this process the system indentifies the person through his/her thumb, figure or palm prints. You can easily find this technology in electronic commerce, law enforcement, computer and laptops.
Voice Recognition Biometric System
Voice recognition biometric system record the sound of the person and store it in its database. Normally, the voice recordings and voiceprints are used as for password to authenticate their entry to various places.
Other Biometric Systems in the Market
• Hand geometry recognition based biometric tools make use of dimensions, surface area and shape of hands and are used for residential as well as commercial purposes.
• Algorithms and 2D and 3D imaging facilitate iris recognition systems to use the structure and patterns of eye vessels as identification tools.
• Vein structures at the back of hand also form the basis for biometric systems or cctv surveillance systems
• Keystroke dynamics, involving speed of typing and pressing various keys, are among other useful biometric techniques.
• People counting systems, which is used for accurate counting in large spaces
Various industries are coming forward to install biometric system in their premises. Even residential security is getting relied on this technology, thereby making this world a secure place to live

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