User's Manual

A PPENDIX A – Q UALITY AND C ONTENT

the Veri-Series unit to reject the image during processing. Lightly moisturizing the

finger will enhance the contrast of the print and provide more reliable verification. The

increased sensitivity of the silicon sensor is dramatically reducing problems in this

area.

Image consistency

Once a user’s fingerprint template has been enrolled, the best performance in the

candidate matching process depends on consistency. Obviously, the user must use

the same finger for ID verification as was used to form the original template. It also is

important to position the finger correctly for each verification, as was done when the

template was enrolled, so the Veri-Series unit “sees” approximately the same

information each time.