Proprietary Fingerprint Template evaluations assess the accuracy of end-stage fingerprint matchers. These are the computationally-expensive algorithms used in the last stages of one-to-many Automated Fingerprint Identification System (AFIS) searches. These evaluations are intended to assess the core algorithmic capability of performing one-to-one fingerprint verification.
The National Institute of Standards and Technology's Proprietary Fingerprint Template (PFT) program is an ongoing biometric technology evaluation program measuring the performance of fingerprint template generation and one-to-one verification software using vendor proprietary fingerprint templates. This is as opposed to standardized templates which are measured in NIST's MINEX program. There have been three distinct generations of the PFT evaluation.
NIST's one-to-one proprietary fingerprint template generation and matching technology evaluation, PFT III, replaced PFT II in October 2019. PFT III continues to be a one-to-one evaluation of template generation and matching. The evaluation reports results on datasets present in both PFT II and PFT 2003, as well as new PFT III-specific datasets. Rolled and plain optical and ink impressions at resolutions of 500 and 1000 pixels per inch are evaluated as well as non-contact imagery. New datasets are added as they become available.
PFT II reported template extraction times, template sizes, and match times. PFT II used both two finger and ten finger datasets to report results on plain-to-plain, plain-to-roll, and roll-to-roll matching. It was replaced by PFT III in 2019.
The original PFT evaluation reported only one-to-one matching algorithm accuracy for a few small datasets. It was replaced by PFT II in 2010, adding larger datasets and expanded analysis.