Biometrics

Question 1

How does biometric data work?

Answer 1

Digital biometric data is not a 100% accurate representation of, for example, a fingerprint or a face. Instead, the biometric capture renders a number of specific points on the feature rather than the feature itself. ​

Question 2

why are different sensors used in biometrics?

Answer 2

Many different sensors have to be used to capture biometric data as the variability in subjects (people) means it isn’t possible to do this accurately using one sensor.

Question 3

What is the main disadvantage to biometrics?

Answer 3

When many sensors are used to capture large amounts of biometric data a significant amount of processing is required.​

Question 4

What can cause issues with detection in biometrics?

Answer 4

Changes to the underlying metrics can cause access issues, for example a subject having a plaster on a finger.​

Question 5

What are the 3 key points about biometric data?

Answer 5

Always analogue​
Three dimensional​
Stored as a series of mathematical data and algorithms.

Question 6

Name 3 legal issues which occur with biometrics

Answer 6

Data must be: