Related Terminologies

The following terminologies will be commonly used throughout the blog:

Biometric - Recent studies of methods for recognizing distinct human intrinsic physical or behavioral characteristics.
Fingerprint - Commonly used physical trait in biometric identification
Pruney Fingers - The wrinkles occur in skin after a drawn-out (15-20 min) exposure to water.
TPR - True positive rate (benefits)
FPR - False positive rate (costs)
ROC Curves - Relative Operating Characteristic curve is used as a graphical representation to illustrate a comparison of two operating characteristics (TPR & FPR) as the criterion changes. An example of this curve is illustrated below:

An Introduction to ROC Analysis

Stratum corneum (or horny layer) - The outermost layer of the epidermis, composed of large, flat, polyhedral, plate-like envelopes filled with keratin which are the dead cells that have migrated up from the stratum granulosum.

Stratum corneum

Pruning - Wrinkling of the skin as immersed in water for prolonged period. A protein, keratin, in stratum corneum which is responsible for skin hydration, absorbs water. So, as toes or fingers are exposed to water for a prolonged time, this layer of skin will develop wrinkles due to its stretchy properties of skin. However, this condition is temporary and it wears off within minutes.