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BIOMETRIC TECHNIQUES

1.      Fingerprint recognition

An identification system based on fingerprint recognition looks for specific characteristics in the line pattern on the surface of the finger. The bifurcations, ridge endings and islands that make up this line pattern are stored in the form of an image.

Advantages

·        The technology is also relatively cheap and easy to use

Disadvantage:

·        The image captured by an external characteristic can be replicated, even if it is stored in encoded form.

·        A finger presented for recognition does not necessarily still need to be attached to a body.

·        Fingerprints can also wear away as you get older, if you do a lot of DIY or a particular kind of work.

·        some line patterns are so similar that in practice this can result in a high false acceptance rate.

 

2.      Facial recognition

A facial recognition system analyses the shape and position of different parts of the face to determine a match. Surface features, such as the skin, are also sometimes taken into account.

Advantages

·        Good for remote recognition

·        The technology allows negative identification, or the exclusion of faces

Disadvantages

The technology focuses mainly on the face itself i.e., from the hairline down. As a result, a person usually has to be looking straight at the camera to make recognition possible.

3.      Iris recognition

When an iris scan is performed a scanner reads out the unique characteristics of an iris, which are then converted into an encrypted barcode. Iris scanning is known to be an excellent security technique, especially if it is performed using infrared light.

Advantages

·        High level of security

Disadvantages

·        Resistance from users when technology is introduced

·        You also have to adopt a certain position so the scanner can read your iris, which can cause discomfort.

·        Hygiene as many systems require users to place their chin on a chin rest that has been used by countless people before them.

 

4.      Finger vein pattern recognition

In the case of vein pattern recognition, the ending points and bifurcations of the veins in the finger are captured in the form of an image, digitized and converted into an encrypted code. Combined with the fact that veins are found beneath rather than on the surface of the skin.

Advantages

·        This technology considerably more secure than fingerprint-based identification.

·        This technology is faster and more convenient for the user.

Disadvantages

·        It is an expensive method

·        Very cold fingers and dead fingers are impossible or difficult to read.

5.      Palm vein pattern recognition

This technique is also based on the recognition of unique vein patterns.

Advantages

·        This is a simpler and more secure identification method than finger vein pattern recognition.

·        Palm scanning is fast and accurate.

·        Offers a high level of user convenience.

Disadvantages

·        Relatively expensive

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