Biometrics terms starting with D

8 terms

1. D-Prime (D') A statistical measure of how well a system can discriminate between a signal and a non-signal.
2. database In electronic records a database is a set of data elements consisting of at least one file, or of a group of integrated files, usually stored in one…
3. Decision The opinion of the court in concluding a case at law.
4. Degrees of Freedom A statistical measure of how unique biometric data is. Technically, it is the number of statistically independent features (parameters) contained in…
5. Delta Point Part of a fingerprint pattern that looks similar to the Greek letter delta (Δ), as illustrated below.
6. Detection and Identification Rate The rate at which individuals, who are in a database, are properly identified in an open-set identification (watchlist) application.
7. Detection Error Trade-off (DET) Curve A graphical plot of measured error rates, as illustrated below. DET curves typically plot matching error rates (false non-match rate vs.
8. Difference Score A value returned by a biometric algorithm that indicates the degree of difference between a biometric sample and a reference.