Appendix B: Biometric Recognition Performance; Fingerprint Recognition Performance Issues; Iris Recognition Performance Issues - NextgenID BioAxs 9800IR Installation & Operation Manual

Multi-modal biometric access panel fingerprint & iris recognition
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BioAxs 9800IR™ Installation & Operations Manual. Version 1.9

Appendix B: Biometric Recognition Performance

Below is a list of the most common issues adversely affecting the performance of the biometric
recognition systems configured in your BioAxs 9800IR™ access panel.

Fingerprint Recognition Performance Issues

The sensor is having difficulty acquiring an image of your finger; the sensor window may
need cleaning, as described in "Cleaning the Sensor" (above).
You may not be touching the sensor correctly. In order for the sensor to acquire a good
image of your finger, you must place the pad of your finger—not the tip—in the center of
the oval window, and apply gentle, even pressure. Do not "roll" your finger. Pressing too
hard will distort your fingerprint.
Pressing too lightly will not expose a large enough area of your finger. Also, make sure
to hold your finger on the sensor until you see the sensor light blink; this may take longer
for dry fingers. Then, lift your finger. Although you may use any finger with the sensor,
your index finger of either hand works best.
If the sensor is capturing your finger image (as indicated by the sensor blink) and you
have tried all the above suggestions, you may need to reregister your finger or try
registering a different finger.

Iris Recognition Performance Issues

Significant glare on eyeglasses that obstructs the eyes. Adjusting the lighting that causes
the glare can typically solve this. Sunglasses should also be removed during recognition
and enrollment cycles to ensure optimal facial feature analysis.
Ensure there is not long hair obscuring the central part of the face.
Poor lighting that would cause the face to be overexposed or underexposed (low
contrast)
Ensure both Panel Lights are in proper working order. Contact NextgenID Support if one
or both of the panel lights are not functioning.
(Optional Equipment) The NextgenID BioStation Panel lights may need replacement.
The BioStation is designed to optimize lighting conditions for outdoor panel locations,
replace any burned out lamps.
There are no enrolled facial recognition candidates or, the system administrator has not
approved facial recognition candidate enrollments for the given member.
Copyright © 2004 NextgenID, Ltd. All Rights Reserved
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