sentence: Most systems allow for dry, greasy, chaffed and minor cuts on the fingers.
sentences_before: Most biometric systems do not keep an image of the fingerprint but a template. A template is basically a number that is calculated based on various characteristics of the fingerprint. This is done so that persons may not sneak unauthorised images of fingerprints into the database.
sentences_after: The other biometric systems are based on retina of the eye, palm, photograph or voice pattern recognition. The palm-based systems take the image of the palm from various angles and compare them.
concept_name: system
headings: Access control
categories: Security