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1.3.3 Who are you?
Transcript of 1.3.3 Who are you?
photo (cc) Malte Sörensen @ flickr
More efficient tomorrow
Make daily life easier
Store Information safely
3D Facial Recognition
Rigid tissue and bone is most apparent, such as the curves of the eye socket, nose and chin.
~80 different nodal points
10 times better than 2D Facial Recognition.
How It Works
Surface Texture Analysis
Works much the same way facial recognition does.
20-25% more accurate results
The system will then distinguish any lines, pores and the actual skin texture
Can identify differences between identical twins
Ways The System Can Be Beaten
Glare off of glasses
Long hair obscuring the central part of the face
Lack of resolution
Biometrics can possibly present ethical concerns. Any biometric data will show differences between "groups" that is one reason they are groups. The data then taken can then be used to "prove" something by the researcher or by others that may not follow at all. Many times this is used as a political or ethnic agenda.
DNA will play a huge role in
the future of biometrics. It will be
the next step in security. It will establish familial relationships. Also, DNA is impossible to replicate.
DNA in Biometrics
CTL-Henson Security Co. has been hired by a credit card company called Visa to perform two security tasks:
1) Provide added security at ATM's by adding retinal and iris scanners to be used along with the card and pin number
2)To limit the number of individuals with access to records and prevent fraud at the corporate level. (Facial and Voice Scanners
Well protected against damage
The iris is mostly flat
The iris has a fine texture that
There is no need to touch any equipment
The fine texture remains remarkably stable.
Extremely low (almost 0%) false negative rates
Low occurrence of false positives
Tough to adjust and can become bothersome
Affected by changes in lighting
More expensive than some other forms of Biometrics
Poor image quality
Tricked iris scanners
Measurement accuracy can be affected by a disease such as cataracts
Not very user friendly
High equipment costs
What is the Iris?
The iris is the colored ring around the pupil of every human being and like a snowflake, no two are alike.
The iris is a muscle that regulates the size of the pupil, controlling the amount of light that enters the eye.
How Accurate are They?
The scanner have almost a 0% false negatives and just about the same number of false positive.
Rarely impeded by glasses or contact lenses.
The iris remains stable over time as long as there are no injuries
Even blind people can use this scan technology
Iris & Retinal Scanners
3D Facial Recognition
How it works
A low-energy beam of infrared light traces a circular path on the retina. Because the blood vessels absorb more light than the surrounding tissues, the reflection intensity varies.
This reflection is measured at 320 points on the path and is given an intensity grade between 0 and 4,095. These numbers are then given a code that can be compared to others in the system.
How to beat the system:
Because retinas decay too quickly, it is not possible to use a deceased person's eyeballs. There is also a 1 in 10,000,000 error rate for retinal scanners
However, some limitations include the use of this type of scanner not being possible for some blind people or people with cataracts.
Distinctive in terms of vocal chords, vocal tract, sinuses, and mouth tissues
Easily corrupted with noise, so may not be suitable for use in public places
Probability of High false rates (positive and negative) due to physical ailments (cold & cough, sinus problems, etc.)
Pros vs. Cons
Some privacy issues people may have are:
Having their voice recorded and analyzed
Having their eye pattern photographed
Having a 3D model of their face being made
A credit card company having this information
People having access to that information
Fort Wayne Credit Union wanted to upgrade
the security system from fingerprint scanners to
iris scanners. The fingerprint scanners would quickly get dirty and need cleaned often. They
also worried that a fingerprint could easily
obtained by a thief. Now, authorized people
can more quickly and easily gain access
to restricted areas and the scanners rarely
need cleaned. A face scanner was also
installed at the vault to further increase
While the accuracy of voice recognition has improved over the past few years some users still experience problems with accuracy either because of the way they speak or the nature of their voice.
For example: a car crash, laryngitis, any damage to the mouth tissue, sinus, or vocal cord, and also our voices can change over time
How is speech produced?