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Invasive Biometric Characteristics

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Biometrics is work of art for Greek words bio and metric which has combine meaning of life measurement. A biometric is a physical or behavioral attribute that can be measured to endorse person. Biometrics authentication involves confirmation or rejection of a person's claimed identity based on specific characteristics. Biometric characteristics can be roughly broken up into two categories i.e. Invasive and Non-Invasive

Invasive Biometric Characteristics
Invasive biometric identification requires the subject to perform an action in order to be authenticated. Some of the invasive biometric characteristics are as follows,
• Iris Recognition
• Fingerprint Recognition
• Hand Geometry Recognition
• Palm Print Recognition
• DNA Identification
• Signature …show more content…
But this system suffers a variety of problems such as, Noise in sensed data, variations in Intra-class, ability for Distinction, etc. These limitations are overcome either by Bi-modal i.e. use of two features for identification or Multi-modal biometric system where more than two sources are used in person’s authentication.
In Bi-modal biometric system, the identification of person is done by information of two sources i.e. with the help of combination of two features like face and voice, face and fingerprint, fingerprint and speech, etc. The combination between features strengthens the information which improves efficiency in recognition of individuals than that of single source of information.
The criteria considered in general biometric system are listed below:
• Uniqueness: This means no two persons should have same in terms of the biometric characteristics either behavioral or physiological. Fingerprints have a high intolerance rate and the probability of two persons with the same iris is estimated as low as 1:1052. This may results in false detection in case of identical twins. On the other side, cannot be easily differentiated by recognition of face area and analysis of DNA- …show more content…
Obtaining the characteristics should be easy. Face recognition systems are not intrusive and it is easy to have face images. In the contrast the characteristic-DNA analysis requires a blood sample or other bodily sample which is difficult to collect. The retina scan is rather invasive sufficiently.
• Performance: This term is referred for the possible identification or verification accuracy. The re-sources used and working or environmental conditions are needed to achieve comparative acceptable accuracy. The intersect accuracy of iris-based systems is reasonably acceptable as its permanence has long period.
• Acceptability: This criterion indicates the acceptability of biometric technologies by peoples. The most acceptable face recognition systems are personally not intrusive, but there are some countries where taking pictures of persons is not allowed or supposed to be a crime. An infrared laser beam is required by the retina scanner which directed through the cornea of the eye becomes invasive and only few users accept this

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