User's Manual

A PPENDIX A – Q UALITY AND C ONTENT

Appendix A – Quality and Content

Section A.1 - Basic Biometric Concepts

Biometric Definitions

Enrollment is the operation of scanning a fingerprint, determining the

quality of the fingerprint scan, and storing a good template with associated

data within the memory of the Veri-Series product.

Verification is the operation of presenting the user ID, either by waving a

proximity card or typing the ID into the Verify dialog box, requesting the

user to place their finger on the fingerprint sensor, scanning the finger,

comparing the current scan against stored fingerprint templates for that

user, and then notification of a successful validation or a failure.

Searching is the operation of the user placing their finger on the V-PASS

fingerprint sensor, scanning the finger, comparing the current scan against

ALL stored fingerprint templates for V-PASS unit, and then notification of a

successful validation or a failure. Searching is only possible on a V-PASS.

Fingerprint Template is the term used to describe the data stored on the

VeriProx that mathematically represents the ridge pattern of an enrolled

fingerprint. This data is not the raw image of the fingerprint, but the result of

processing a raw image through our unique algorithmic process, preparing

the data for later comparisons, and compressing the data for maximum

storage. An image of the uncompressed template data does resemble the

raw image, but whereas a raw image is 90K bytes, the compressed

template is only 348 bytes for the VeriProx or VeriFlex and 2352 bytes for

the V-PASS.

Fingerprint Core is the term used to describe distinguishing print

characteristics usually found in the area of the print where the topography

shows the tightest curvature. Although the entire fingerprint has significant

data, the “core” is the most data-intensive area and therefore very

important.