ADVANTAGES / DISADVANTAGES OF BIOMETRIC SYSTEMS
Here are some of the advantages and disadvantages of fully developed biometric systems that are fairly accurate:
Retinal scans (electronic scan of the innermost layer of the eyeball's wall):
Advantages: ;Retina generally remains stable through life, ensuring accuracy. -
Disadvantages: Requires close physical contact MW scanning device; may not be generally accepted by public.
Iris recognition (recording of iris using standard video technology):
Advantages: Non-invasive procedure (close physical contact not required).
Disadvantages: Relatively expensive; requires large amount of computer storage; may not be generally accepted by public.
Finger imaging (recording of fingerprint using optical scanner):
Advantages: Widely accepted by public and law enforcement communities as reliable identification.
Disadvantages: Requires close physical contact with scanning device; residue on finger may cause recognition problems; has criminal overtones.
Hand geometry (three-dimensional recording of length, width and height of hand and fingers, using optical scanner):
Advantages: User-friendly; requires small amount of computer storage space.
The human iris.
Book Scanner: Image Processing Test #1
Pictures taken by myself at the US National Crypto...Disadvantages: Isn't as unique as other biometric methods; hand injury can cause recognition problems.
Facial thermography or imaging (photograph of face converted into digital code):
Advantages: Non-invasive procedure.
Disadvantages: People who look alike can fool scanner; people can alter their appearance and facial hair can fool device.
Voice verification or recognition (acoustic signal of voice converted into digital code):
Advantages: Works well over the telephone.
Disadvantages: Requires large amount of computer storage; people's voices can change; background noises can interfere.
Signature recognition (computer record of pen/stylus speed, pressure, direction and other characteristics of signature):
Advantages: People are used to providing a signature.
Disadvantages: Poor long-term reliability; accuracy difficult to ensure.