Alcance
This document provides statistical methodologies to estimate false match rates (FMRs) from small biometric sample sets.This document intends to:— lay out a methodology for biometric performance estimation based on extrapolation using extreme value statistical models;— provide statistical methodologies to estimate FMRs of biometric verification systems;— be applicable to systems that include algorithms that produce likelihood dissimilarity or similarity scores;NOTE Throughout the document, if not otherwise specified, scores refer to similarity scores.— specify the methodology for data recording and result reporting;— introduce metrics for the estimated biometric performance.The following are not within the scope of this document.— Estimation of false positive identification rates for one-to-many implementations.— Estimation of false accept rates for verification transactions.