Annex 1 : Finger Placement Recommendations
2019_200000XXXX-V0
IDEMIA
D
OCUMENT
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R
EPRODUCTION AND
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ISCLOSURE
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ROHIBITED
65
December 2018
Most useful areas for biometric data
Areas with the most useful biometric data are different according to the type of
biometric data:
Fingerprint: the most useful zone is around the centre of the first phalanx of the
finger.
Vein network: the useful zone is between the first and third phalanx of the finger.
Figure 27: Most useful areas for biometric data
The sensor is designed so that when the fingertip is in contact with the rounded hollow
guide:
the central zone of the first phalanx is aligned with that of the section dedicated to
the fingerprint capture,
the second phalanx is positioned inside the section dedicated to capturing the finger
vein network.
Area containing the maximum
information
First
phalanx
Second
phalanx