Biometrics Glossary - P

Welcome to the Biometrics Glossary - P - for terms beginning with P

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Palm Print Recognition
A biometric modality that uses the physical structure of an individual’s palm print for recognition purposes, as illustrated below.

Password Bank
A database for storing username, password and other personal information, to be released upon verification of an individual's identity.

Personal Identification Number (PIN)
A security method whereby a (usually) four-digit number is entered by an individual to gain access to a particular system or area.

Physical/Physiological Biometric
A biometric that is characterised by a physical characteristic rather than a behavioural trait. (contrast with behavioural biometric)

Pixel
A picture element. This is the smallest element of a display that can be assigned a color value. See also pixels per inch (PPI), resolution.

Pixels Per Inch (PPI)
A measure of the resolution of a digital image. The higher the PPI, the more information is included in the image, and the larger the file size. See also pixel, resolution.

Population
The set of potential end users for an application.

Probe
The biometric sample that is submitted to the biometric system to compare against one or more references in the gallery. See also gallery.