Fingerprint Enrollment and Matching Performance
Are you experiencing difficulties when swiping/scanning your finger?
Enrollment is a process of registering user's (biometric) data for later Verification purposes.
The quality of the fingerprint enrollment is essential for the performance of the matching algorithm. The number of false rejects is very much dependent on the quality of the enrolled fingerprint template.
Correct scan procedure for the swipe sensor:
• Position the last knuckle joint over the center of the sensor.
• Lay your finger flat on the sensor.
• Do not lift your finger as you swipe over the sensor.
• Do not swing your finger sideways at the end of the movement.
Swiping technique tips
Correct scan procedure for the area sensor:
• Position the center of your fingerprint in the middle of the sensor.
• Lay your finger flat on the sensor with moderate pressure.
• Keep your finger on the sensor until you see a sensor feedback.
Good swiping technique is key to making sure the fingerprint reader recognizes you whenever you swipe on your first attempt. Make sure:
- You start swiping with the sensor under your knuckle, not your fingernail
- You swipe towards you in a straight line, with your finger pressed firm against the sensor, and with your finger lying flat.
- Think about letting your elbow glide backwards, instead of bending your finger
Having difficulty? Re-enroll.
If the fingerprint reader is having difficulty recognizing you on your first attempt, try to re-enroll.
Clean your fingerprint reader
- No matter how well you swipe to authenticate yourself, you are always being compared to how you swiped when you enrolled.
- Most people enroll when they are unfamiliar with good swiping technique and don’t have the benefit of practice.
- Read the tips on swiping technique above, watch the video, try some practice swipes, and then re-enroll.
Periodic cleaning ensures optimum performance.
- Dampen a lint-free cloth or cotton swab with isopropyl alcohol.
- Gently rub the cloth horizontally across the sensor surface, starting from the top and moving down until entire sensor area is clean
- Repeat process 2-3 times
- Visually observe that no residual solution remains on the sensor.
Created on 4/7/2011 7:42:40 AM