REVIEW QESTIONS $-$BIOMETRICS

With the aid of a well labelled diagram explain briefly the concept of a Biometric system.

a$)$ Biometrics systems operates in two modes. Explain briefly the two modes and give

examples in which the two modes can be applied.

b$)$ Explain briefly four $(4)$ difficulties facing biometric systems and how a multi$-$modal

biometric system can be used to address each of them

a$)$ Provide a brief description of five $(5)$ challenges associated with face detection.

b$)$ Describe the three $(3)$ approaches to face recognition.

You have been hired as a Biometric solution Consultant to test and advice on the suitability of the

Automatic Fingerprint Recognition System to be used in the military armoury $($Weapon store$).$ After

testing the system, you obtained the following results $($see table below$).$ For the claimed ID to be

accepted by the system a matching score of $0\mathrm{.}8$ or above should be achieved. What kind of an

advice are you going to offer with regard to suitability of the system for the intended purpose?

Justify.

Consider the following figure. Comment on the performance of Iris, FP$\_$Chip $2$ and Veins systems.