suprema biostation - Finger Placement Guide

How to place a finger
Suprema’s fingerprint products show an outstanding recognition performance regardless of the user’s fingerprint
skin condition or the way of fingerprint positioning. However, following tips are recommended to get more optimal
ff
 Select a finger to enroll
z It is recommended to use an index finger or a middle finger.
z
Thumb ring or little finger is relatively more difficult to place in a correct position
f
ingerprint recognition per
f
ormance.
z
Thumb
,
ring
or
little
finger
is
relatively
more
difficult
to
place
in
a
correct
position
.
 How to place a finger on a sensor
Pl fi h th t it l t l th ith i t t
z
Pl
ace a
fi
nger suc
h
th
a
t
it
comp
l
e
t
e
l
y covers
th
e sensor area w
ith
max
i
mum con
t
ac
t
.
z Place core part of a fingerprint to the center of a sensor.
 People tend to place upper part of a finger.
 The core of a fingerprint is a center where the spiral of ridges is dense.

Usually core of fingerprint is the opposite side of the lower part of a nail
Usually
core
of
fingerprint
is
the
opposite
side
of
the
lower
part
of
a
nail
.
 Place a finger such that the bottom end of a nail is located at the center of a sensor.
z If a finger is placed as in the right picture, only a small area of a finger is captured. So it is
recommended to place a finger as shown in the left picture.
9
ⒸCopyright 2008 Suprema Inc.
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