I
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S In
t
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na
t
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na
l J
o
urna
l o
f
Art
if
icia
l In
t
ellig
ence
(
I
J
-
AI
)
Vo
l.
14
,
No
.
6
,
Dec
em
b
er
2
0
2
5
,
p
p
.
4
7
3
9
~
4
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4
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I
SS
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2
2
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2
-
8
9
3
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,
DOI
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0
.
1
1
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9
1
/ijai.v
14
.i
6
.
p
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4
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474
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4739
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CC B
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li
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Un
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an
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alik
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2
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m
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co
m
1.
I
NT
RO
D
UCT
I
O
N
Fo
r
m
o
r
e
th
an
a
ce
n
tu
r
y
,
f
in
g
er
p
r
in
ts
h
a
v
e
b
ee
n
co
n
s
id
er
ed
th
e
m
o
s
t
r
eliab
le
m
eth
o
d
o
f
p
er
s
o
n
al
id
en
tific
atio
n
in
th
e
f
ield
o
f
f
o
r
en
s
ics.
A
p
er
s
o
n
'
s
f
in
g
er
p
r
in
ts
ar
e
f
r
eq
u
en
tly
u
tili
ze
d
as
a
m
ea
n
s
o
f
d
eter
m
in
in
g
th
eir
id
en
tity
an
d
u
n
d
er
s
tan
d
in
g
th
eir
u
n
i
q
u
en
e
s
s
.
So
,
h
u
m
a
n
f
i
n
g
er
p
r
in
ts
h
a
v
e
b
ee
n
u
tili
ze
d
as
v
ital
ev
id
en
ce
in
cr
im
i
n
al
in
v
esti
g
atio
n
s
[
1
]
.
T
ec
h
n
o
lo
g
ical
ad
v
an
ce
m
e
n
ts
h
av
e
m
ad
e
it
p
o
s
s
ib
le
to
en
h
an
ce
th
e
ef
f
ec
tiv
en
ess
o
f
s
cien
tific
t
ec
h
n
iq
u
es f
o
r
th
e
ac
q
u
is
itio
n
an
d
an
aly
s
is
o
f
ev
i
d
en
ce
.
Als
o
,
th
e
in
cr
ea
s
e
in
th
e
ty
p
e
an
d
n
u
m
b
er
o
f
cr
im
es
c
o
m
m
itted
b
y
c
r
im
in
als
h
as
m
ad
e
it
d
if
f
icu
lt
f
o
r
law
en
f
o
r
c
em
en
t
ag
en
cies
to
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o
s
ec
u
te
th
e
m
.
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u
e
to
th
e
g
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o
win
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ig
itizatio
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im
m
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e
n
t
s
ec
u
r
ity
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is
k
s
s
u
ch
as
h
ac
k
in
g
,
p
h
is
h
in
g
,
a
n
d
m
alwa
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e
attac
k
s
h
av
e
in
cr
ea
s
ed
,
s
o
it
h
as
b
ec
o
m
e
ess
en
t
ial
to
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o
tect
o
u
r
s
elv
es
f
r
o
m
th
ese
m
o
d
e
r
n
-
d
ay
th
r
ea
ts
.
B
io
m
etr
ics
i
s
a
m
eth
o
d
u
s
ed
to
s
af
eg
u
ar
d
o
n
eself
b
y
r
ely
in
g
o
n
th
e
in
h
er
en
t
p
h
y
s
ical
o
r
b
eh
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io
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al
ch
ar
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ter
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u
m
an
b
ein
g
s
f
o
r
au
th
e
n
ticatio
n
r
ea
s
o
n
s
[
2
]
.
I
n
to
d
ay
'
s
d
ig
ital
ag
e,
u
n
iq
u
e
p
h
y
s
ical
tr
aits
s
u
ch
as
f
in
g
er
p
r
in
ts
,
p
alm
p
r
in
ts
,
f
ac
ial
r
ec
o
g
n
itio
n
,
an
d
ir
is
p
atter
n
s
ar
e
ex
ten
s
iv
ely
u
tili
ze
d
f
o
r
th
e
id
en
tific
ati
o
n
o
f
cr
im
in
als.
B
ec
au
s
e
o
f
th
eir
u
n
iq
u
e
n
ess
,
f
in
g
er
p
r
in
ts
ar
e
s
till
r
eg
ar
d
ed
as
h
ig
h
ly
s
ig
n
if
ican
t
an
d
ar
e
th
e
m
o
s
t
wid
ely
u
s
ed
q
u
ality
am
o
n
g
all.
As
a
r
esu
lt,
f
in
g
er
p
r
in
t
id
en
tific
ati
o
n
is
wid
ely
u
tili
ze
d
in
v
a
r
io
u
s
d
o
m
ain
s
s
u
ch
as
b
a
n
k
in
g
,
f
in
d
i
n
g
m
is
s
in
g
ch
ild
r
en
,
a
n
d
p
ass
p
o
r
t
co
n
t
r
o
l.
A
laten
t
f
in
g
e
r
p
r
in
t
r
ef
er
s
t
o
an
in
v
is
ib
le
o
r
h
id
d
en
im
p
r
in
t
f
o
r
m
ed
b
y
th
e
r
id
g
es
o
f
a
f
in
g
er
o
n
a
s
u
r
f
ac
e,
lik
e
g
lass
o
r
a
d
o
o
r
k
n
o
b
.
Sev
er
al
m
eth
o
d
s
,
s
u
ch
as
d
u
s
tin
g
with
f
in
g
er
p
r
in
t
p
o
wd
er
o
r
em
p
lo
y
in
g
ch
e
m
ical
d
ev
elo
p
e
r
s
,
ca
n
r
en
d
er
t
h
ese
h
id
d
en
im
p
r
ess
io
n
s
v
is
ib
le
[
3
]
.
So
,
f
u
r
th
e
r
p
r
o
ce
s
s
in
g
o
f
th
ese
f
in
g
er
p
r
i
n
ts
is
r
eq
u
ir
ed
f
o
r
th
e
p
r
o
p
er
id
en
tific
atio
n
o
f
cr
im
in
als.
T
h
e
in
v
esti
g
atio
n
team
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
2
5
2
-
8
9
3
8
I
n
t J Ar
tif
I
n
tell
,
Vo
l.
14
,
No
.
6
,
Dec
em
b
er
20
25
:
4
7
3
9
-
4
7
4
8
4740
f
ac
es
m
an
y
ch
allen
g
es
,
lik
e
co
m
p
lex
b
ac
k
g
r
o
u
n
d
n
o
is
e,
p
ar
tial
im
p
r
ess
io
n
s
,
en
h
an
ce
m
en
t
o
f
p
o
o
r
-
q
u
ality
im
ag
es,
u
p
liftm
e
n
t
o
f
f
in
g
er
p
r
in
ts
,
an
d
ca
p
tu
r
in
g
o
f
im
p
r
ess
io
n
s
f
r
o
m
t
h
e
cr
i
m
e
s
ce
n
e
[
4
]
.
T
h
ese
c
h
allen
g
es
p
r
o
v
id
e
r
esear
ch
e
r
s
with
in
s
i
g
h
t
in
to
h
o
w
to
en
h
a
n
ce
a
n
d
im
p
r
o
v
e
t
h
e
p
e
r
f
o
r
m
an
ce
o
f
th
e
id
en
tific
atio
n
s
y
s
tem
s
.
T
h
e
laten
t
f
in
g
er
p
r
i
n
t
im
ag
e
p
r
o
ce
s
s
in
g
in
v
o
l
v
e
s
a
s
eq
u
en
ce
o
f
s
tep
s
,
as
s
h
o
wn
in
Fig
u
r
e
1
.
T
h
e
in
itial
s
tep
is
k
n
o
wn
as
im
ag
e
ac
q
u
is
itio
n
,
in
w
h
ich
an
im
ag
e
is
u
p
lifte
d
f
r
o
m
th
e
b
ac
k
g
r
o
u
n
d
u
s
in
g
d
if
f
er
en
t
m
eth
o
d
s
.
I
n
th
e
s
ec
o
n
d
p
h
ase,
th
e
q
u
ality
o
f
th
e
im
ag
e
ca
p
t
u
r
ed
in
th
e
in
itial
p
h
ase
is
en
h
an
ce
d
b
y
im
p
r
o
v
in
g
th
e
clar
ity
o
f
th
e
r
id
g
e
s
tr
u
ctu
r
e
,
r
ed
u
cin
g
th
e
n
o
is
e
,
an
d
a
d
ju
s
tin
g
th
e
r
i
d
g
e/v
alley
co
n
tr
ast.
T
h
e
th
ir
d
s
tep
is
u
s
ed
f
o
r
th
e
r
esto
r
atio
n
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f
th
e
im
ag
e,
wh
er
e
th
e
ex
ac
t
f
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tu
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th
e
d
eg
r
ad
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d
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at
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6
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e
o
r
ien
ta
tio
n
g
e
n
er
ativ
e
ad
v
e
r
s
ar
ial
n
e
two
r
k
(
C
OOGA
N)
was
p
r
esen
ted
f
o
r
im
ag
e
-
to
-
i
m
ag
e
tr
an
s
latio
n
an
d
also
in
c
o
r
p
o
r
ates
o
r
ie
n
tatio
n
co
n
s
tr
ai
n
ts
in
to
it
f
o
r
m
o
r
e
ac
cu
r
ate
r
esu
lts
[
1
5
]
.
T
h
e
a
u
th
o
r
s
r
ec
o
m
m
en
d
e
d
th
e
u
s
e
o
f
a
ty
p
e
-
2
in
tu
itio
n
is
tic
f
u
zz
y
s
et
(
T
2
I
FS
)
f
o
r
th
e
en
h
an
ce
m
e
n
t o
f
th
e
f
ea
tu
r
es th
at
ar
e
b
ein
g
e
x
tr
ac
ted
f
o
r
laten
t f
in
g
er
p
r
in
t r
ec
o
g
n
itio
n
[
1
6
]
.
T
h
e
u
s
e
o
f
e
x
ten
d
e
d
m
in
u
tia
ty
p
es
was
s
u
g
g
ested
b
y
Kr
i
s
h
et
a
l
.
[
1
7
]
f
o
r
im
p
r
o
v
in
g
au
to
m
ated
laten
t
f
in
g
er
p
r
in
t
id
e
n
tific
atio
n
an
d
in
tr
o
d
u
ce
d
a
n
ew
tech
n
i
q
u
e
ca
lled
e
x
ten
d
e
d
m
in
u
tia
d
escr
ip
to
r
(
E
MD
)
.
I
n
2
0
1
9
,
m
u
lti
-
s
ca
le
p
atch
-
b
ased
s
p
ar
s
e
r
ep
r
esen
tatio
n
an
d
n
eu
r
al
n
etwo
r
k
-
b
ased
m
atc
h
in
g
u
s
in
g
Gab
o
r
f
u
n
ctio
n
s
we
r
e
u
s
ed
to
im
p
r
o
v
e
th
e
laten
t
f
in
g
er
p
r
in
t
im
ag
es
[
1
8
]
.
W
ith
th
is
a
p
p
r
o
ac
h
,
t
h
e
f
in
g
er
p
r
in
t
im
a
g
e
was
d
ec
o
m
p
o
s
ed
in
to
d
if
f
e
r
e
n
t
f
r
eq
u
en
cy
b
an
d
s
,
a
n
d
Gab
o
r
f
ilter
s
wer
e
u
tili
ze
d
to
im
p
r
o
v
e
th
e
v
alley
an
d
r
id
g
e
s
tr
u
ct
u
r
es
o
f
th
e
f
in
g
er
p
r
in
ts
.
Nex
t,
a
n
a
p
p
r
o
ac
h
was
in
tr
o
d
u
ce
d
b
y
th
e
a
u
th
o
r
s
th
a
t
m
ak
es
u
s
e
o
f
th
e
s
p
ec
tr
al
d
ictio
n
ar
y
m
eth
o
d
f
o
r
th
e
p
r
e
-
e
n
h
an
ce
m
en
t
o
f
l
aten
t
f
in
g
er
p
r
in
ts
,
an
d
th
e
s
p
ec
tr
al
d
ictio
n
ar
y
o
f
k
n
o
wn
f
i
n
g
er
p
r
in
t
p
atter
n
s
wa
s
f
ir
s
t
co
n
s
tr
u
cted
an
d
th
en
lat
er
u
s
ed
to
f
ilter
th
e
laten
t
f
in
g
er
p
r
in
t
im
ag
e
[
1
9
]
.
L
astl
y
,
a
m
eth
o
d
was
d
ev
elo
p
ed
b
y
L
ib
an
an
d
Hilles
[
2
0
]
in
th
e
y
ea
r
2
0
1
8
.
T
h
is
m
eth
o
d
r
ec
o
n
s
tr
u
cts
th
e
lo
s
t
m
in
u
tiae
b
y
u
s
in
g
th
e
d
i
r
ec
tio
n
al
to
tal
v
ar
iatio
n
(
DT
V)
m
o
d
el.
T
h
e
DT
V
m
o
d
el
was a
m
o
d
if
ied
v
er
s
io
n
o
f
th
e
to
tal
v
ar
iatio
n
(
T
V)
m
o
d
el,
wh
ich
f
ac
to
r
s
in
t
h
e
d
ir
ec
tio
n
al
ch
ar
ac
ter
is
tics
o
f
th
e
im
ag
e
[
2
0
]
.
2
.
3
.
Rec
o
ns
t
ruct
io
n t
ec
hn
iqu
es f
o
r
la
t
ent
f
ing
er
prints
R
ec
o
n
s
tr
u
ctio
n
o
f
laten
t
f
in
g
e
r
p
r
in
ts
is
a
cr
u
cial
s
tep
in
th
e
p
r
o
ce
s
s
in
g
o
f
laten
t
f
in
g
er
p
r
i
n
ts
,
as
th
e
f
in
g
er
p
r
in
ts
u
p
lifte
d
f
r
o
m
t
h
e
cr
im
e
s
ce
n
e
ar
e
b
lu
r
r
ed
,
in
co
m
p
lete,
an
d
m
a
y
co
n
tain
s
tain
s
o
r
n
o
is
e.
T
ab
le
2
s
h
o
ws
th
e
v
ar
io
u
s
av
ailab
le
te
ch
n
iq
u
es
f
o
r
th
e
r
ec
o
n
s
tr
u
ctio
n
o
f
th
e
laten
t
f
in
g
er
p
r
in
t
im
a
g
e.
I
n
2
0
2
3
,
a
n
o
v
el
f
r
am
ewo
r
k
was
p
r
o
p
o
s
ed
th
at
u
tili
ze
s
th
e
GAN
f
o
r
laten
t
f
in
g
er
p
r
in
t
s
y
n
th
esis
an
d
r
ec
o
n
s
tr
u
ctio
n
[
2
1
]
.
A
d
ee
p
lear
n
in
g
alg
o
r
ith
m
u
s
in
g
U
-
n
et
ar
c
h
itectu
r
e
was
p
r
esen
ted
in
2
0
2
2
a
n
d
ev
alu
ates
th
e
p
er
f
o
r
m
an
ce
u
s
in
g
m
ea
n
ab
s
o
lu
te
e
r
r
o
r
(
MA
E
)
an
d
m
ea
n
s
q
u
ar
e
e
r
r
o
r
(
MS
E
)
[
2
2
]
.
Nex
t,
a
co
m
p
lete
r
ep
r
esen
tatio
n
GAN
(
C
R
-
GAN)
b
ased
r
esto
r
atio
n
m
o
d
el
was
in
tr
o
d
u
ce
d
th
at
r
em
o
v
es
th
e
n
o
is
e
f
r
o
m
th
e
in
p
u
t
im
ag
e
an
d
p
r
o
d
u
ce
s
a
b
in
ar
ized
f
in
g
er
p
r
in
t
im
ag
e
as
o
u
tp
u
t
[
2
3
]
.
I
n
2
0
2
1
,
a
C
NN
b
ased
ap
p
r
o
ac
h
w
as
im
p
lem
en
ted
f
o
r
r
ec
o
n
s
tr
u
ctin
g
th
e
f
in
g
er
p
r
in
t
im
ag
es
b
y
e
x
tr
ac
tin
g
t
h
e
m
in
u
tiae
f
ea
tu
r
es
f
r
o
m
t
h
e
o
b
tain
ed
im
a
g
e
an
d
r
ep
licatin
g
th
e
in
p
u
t f
o
r
o
b
tain
in
g
th
e
o
u
tp
u
t w
h
ile
r
e
d
u
cin
g
th
e
n
u
m
b
er
o
f
r
ec
o
n
s
tr
u
ctio
n
e
r
r
o
r
s
[
2
4
]
.
T
ab
le
2
.
Av
ailab
le
r
ec
o
n
s
tr
u
ct
io
n
tech
n
iq
u
es
A
u
t
h
o
r
s
Y
e
a
r
Te
c
h
n
i
q
u
e
u
se
d
D
a
t
a
s
e
t
u
s
e
d
P
e
r
f
o
r
ma
n
c
e
e
v
a
l
u
a
t
i
o
n
me
t
r
i
c
R
e
mar
k
s
B
o
u
z
a
g
l
o
a
n
d
K
e
l
l
e
r
[
2
1
]
2
0
2
3
GAN
N
I
S
T
S
D
4
N
I
S
T
S
D
1
4
I
d
e
n
t
i
f
i
c
a
t
i
o
n
A
c
c
u
r
a
c
y
F
A
R
S
y
n
t
h
e
t
i
c
f
i
n
g
e
r
p
r
i
n
t
s
g
e
n
e
r
a
t
e
d
a
r
e
m
o
r
e
r
e
a
l
i
st
i
c
a
n
d
c
a
n
d
e
c
e
i
v
e
v
e
r
i
f
i
c
a
t
i
o
n
o
f
f
i
n
g
e
r
p
r
i
n
t
s.
P
a
n
e
t
a
l
.
[
2
2
]
2
0
2
2
U
-
n
e
t
a
r
c
h
i
t
e
c
t
u
r
e
NA
M
S
E
M
A
E
I
t
r
e
d
u
c
e
s
t
h
e
M
S
E
a
n
d
M
A
E
c
o
n
si
d
e
r
a
b
l
y
.
Jo
sh
i
e
t
a
l
.
[
2
3
]
2
0
2
2
CR
-
GAN
I
I
I
TD
-
M
O
LF
r
u
r
a
l
I
n
d
i
a
n
f
i
n
g
e
r
p
r
i
n
t
N
F
I
Q
S
S
I
M
R
a
n
k
-
50
C
h
a
n
n
e
l
r
e
f
i
n
e
m
e
n
t
c
a
n
b
e
a
p
p
l
i
e
d
t
o
t
h
e
o
t
h
e
r
p
h
a
se
s
o
f
a
u
t
o
m
a
t
e
d
f
i
n
g
e
r
p
r
i
n
t
r
e
c
o
g
n
i
t
i
o
n
sy
s
t
e
m
.
S
a
p
o
n
a
r
a
e
t
a
l
.
[
2
4
]
2
0
2
1
C
N
N
F
V
C
2
0
0
4
M
S
E
D
a
t
a
a
u
g
m
e
n
t
a
t
i
o
n
a
p
p
r
o
a
c
h
e
s
c
a
n
b
e
u
se
d
t
o
r
e
d
u
c
e
M
S
E
.
X
u
e
t
a
l
.
[
2
5
]
2
0
2
0
A
u
g
N
e
t
f
r
a
mew
o
r
k
N
I
S
T
S
D
2
7
I
I
I
TD
l
a
t
e
n
t
f
i
n
g
e
r
p
r
i
n
t
R
a
n
k
-
K
i
d
e
n
t
i
f
i
c
a
t
i
o
n
a
c
c
u
r
a
c
y
I
t
si
g
n
i
f
i
c
a
n
t
l
y
i
m
p
r
o
v
e
s
t
h
e
i
d
e
n
t
i
f
i
c
a
t
i
o
n
p
e
r
f
o
r
m
a
n
c
e
a
n
d
v
i
s
u
a
l
e
v
a
l
u
a
t
i
o
n
.
Le
e
e
t
a
l
.
[
2
6
]
2
0
2
0
P
i
x
2
P
i
x
mo
d
e
l
N
I
S
T
S
D
4
F
I
D
v
a
l
u
e
F
M
R
P
r
o
p
o
se
d
m
e
t
h
o
d
h
a
s
b
e
t
t
e
r
f
a
l
se
r
e
c
o
v
e
r
y
r
a
t
e
a
s
c
o
m
p
a
r
e
d
t
o
o
t
h
e
r
c
o
n
v
e
n
t
i
o
n
a
l
m
e
t
h
o
d
s.
G
u
p
t
a
e
t
a
l
.
[
2
7
]
2
0
2
0
O
P
R
met
h
o
d
F
V
C
2
0
0
2
F
V
C
2
0
0
4
G
o
o
d
n
e
ss
i
n
d
e
x
Ty
p
e
1
a
t
t
a
c
k
TA
R
W
i
t
h
t
h
e
u
t
i
l
i
z
a
t
i
o
n
o
f
d
i
c
t
i
o
n
a
r
i
e
s,
t
h
e
r
e
c
o
n
s
t
r
u
c
t
e
d
i
ma
g
e
l
o
o
k
s m
o
r
e
r
e
a
l
i
s
t
i
c
.
W
o
n
g
a
n
d
La
i
[
2
8
]
2
0
2
0
O
F
F
I
EN
e
t
F
V
C
2
0
0
2
F
V
C
2
0
0
4
P
S
N
R
TM
R
/
F
M
R
C
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n
si
d
e
r
a
t
i
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f
o
r
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t
a
t
i
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f
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f
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r
p
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g
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v
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b
e
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t
e
r
r
e
su
l
t
s
.
D
a
b
o
u
e
i
e
t
a
l
.
[
2
9
]
2
0
1
8
c
G
A
N
I
I
I
TD
l
a
t
e
n
t
f
i
n
g
e
r
p
r
i
n
t
I
I
I
TD
-
M
O
LF
R
a
n
k
-
25
R
a
n
k
-
50
I
t
c
o
n
si
d
e
r
a
b
l
y
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mp
r
o
v
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mat
c
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f
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p
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s.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
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2252
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8
9
3
8
A
d
va
n
ce
men
ts
in
la
te
n
t fin
g
erp
r
in
t reco
g
n
itio
n
:
a
co
mp
r
eh
e
n
s
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r
ev
iew
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(
N
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n
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Ma
n
ch
a
n
d
a
)
4743
Fu
r
th
er
,
an
Au
g
Net
f
r
am
ewo
r
k
was
p
r
o
p
o
s
ed
f
o
r
laten
t
f
i
n
g
er
p
r
i
n
t
s
y
n
th
esis
to
tr
an
s
f
o
r
m
a
clea
n
f
in
g
er
p
r
in
t
im
ag
e
in
to
a
laten
t
f
in
g
er
p
r
in
t
im
a
g
e
[
2
5
]
.
A
m
a
ch
in
e
lear
n
in
g
-
b
ased
m
o
d
el
n
am
ed
Pix
2
Pix
was
p
r
esen
ted
f
o
r
g
e
n
er
atin
g
f
in
g
er
p
r
in
t
im
ag
es
th
at
l
o
o
k
m
o
r
e
n
atu
r
al
b
y
u
tili
zin
g
s
k
eleto
n
f
in
g
e
r
p
r
in
t
im
a
g
e
f
ea
tu
r
es
[
2
6
]
.
I
n
2
0
2
0
,
a
n
o
v
el
ap
p
r
o
ac
h
was
p
r
esen
te
d
f
o
r
th
e
e
n
h
an
ce
m
en
t
an
d
r
ec
o
n
s
tr
u
ctio
n
o
f
f
in
g
er
p
r
in
ts
.
I
n
th
is
m
eth
o
d
,
a
f
in
g
er
p
r
in
t
im
a
g
e
was
d
ec
o
m
p
o
s
ed
in
to
two
co
m
p
o
n
e
n
ts
k
n
o
wn
as
p
h
ase
an
d
o
r
ien
tatio
n
c
o
m
p
o
n
en
ts
[
2
7
]
.
Nex
t,
a
C
NN
-
b
ased
m
o
d
el
n
a
m
ed
o
r
ie
n
tatio
n
f
ield
-
co
r
r
ec
te
d
f
in
g
e
r
p
r
in
t
im
a
g
e
en
h
an
ce
m
e
n
t
n
etwo
r
k
(
OFFIE
Net)
was
in
tr
o
d
u
ce
d
in
th
e
y
ea
r
2
0
2
0
[
2
8
]
.
I
t
u
tili
ze
s
th
e
r
id
g
e
o
r
ien
tatio
n
in
f
o
r
m
atio
n
f
o
r
r
ec
o
v
e
r
in
g
th
e
r
id
g
e
s
tr
u
ctu
r
es
o
f
th
e
f
in
g
er
p
r
in
t.
Fu
r
th
er
,
a
m
et
h
o
d
b
ased
o
n
th
e
co
n
d
itio
n
al
g
en
er
ativ
e
a
d
v
er
s
ar
ial
n
etwo
r
k
(
C
GAN)
was
p
r
esen
ted
f
o
r
th
e
r
ec
o
n
s
tr
u
ctio
n
o
f
f
in
g
er
p
r
in
ts
th
at
h
elp
s
t
o
g
en
er
ate
f
o
u
r
ad
d
itio
n
al
m
a
p
s
k
n
o
wn
as
an
o
r
ien
tatio
n
m
ap
,
a
f
r
e
q
u
en
c
y
m
ap
,
a
r
id
g
e
m
ap
,
an
d
a
s
eg
m
en
tatio
n
m
ap
f
o
r
ea
c
h
lat
en
t f
in
g
er
p
r
in
t in
p
u
t im
ag
e
[
2
9
]
.
2
.
4
.
M
a
t
ching
t
ec
hn
iqu
es f
o
r
la
t
ent
f
ing
er
prints
Af
ter
r
ec
o
n
s
tr
u
ctio
n
o
f
th
e
f
in
g
er
p
r
in
t
im
ag
e,
m
atch
in
g
with
th
e
o
r
ig
in
al
f
in
g
er
p
r
i
n
t
is
d
o
n
e.
Ma
tch
in
g
is
co
n
s
id
er
e
d
th
e
la
s
t
p
h
ase
o
f
th
e
p
r
o
ce
s
s
in
g
o
f
laten
t
f
in
g
er
p
r
in
ts
.
T
h
e
tec
h
n
i
q
u
es
d
ev
elo
p
ed
f
o
r
m
atch
in
g
o
f
laten
t
f
i
n
g
er
p
r
in
t
s
ar
e
s
h
o
wn
in
T
ab
le
3
.
A
h
y
b
r
id
f
r
am
ewo
r
k
was
in
t
r
o
d
u
c
ed
in
th
e
y
ea
r
2
0
2
2
th
at
h
elp
s
in
th
e
id
e
n
tific
atio
n
o
f
p
o
r
es
an
d
m
in
u
tiae
p
o
in
ts
in
th
e
laten
t
f
in
g
er
p
r
i
n
ts
to
o
b
tain
m
o
r
e
ac
c
u
r
ate
r
esu
lts
[
3
0
]
.
Fu
r
th
er
,
an
E
D
T
V
m
o
d
el
-
b
ased
C
h
an
-
Vese
ac
tiv
e
co
n
to
u
r
tech
n
iq
u
e
was
p
r
o
p
o
s
ed
f
o
r
th
e
s
eg
m
en
tatio
n
an
d
m
atch
in
g
o
f
laten
t
f
in
g
er
p
r
in
ts
[
3
1
]
.
I
m
a
g
e
s
eg
m
en
tatio
n
was
co
n
s
id
e
r
ed
im
p
o
r
tan
t
as
it
r
em
o
v
es b
ac
k
g
r
o
u
n
d
n
o
is
e,
s
tain
s
,
o
r
an
y
u
n
wan
te
d
p
ar
t
f
r
o
m
th
e
f
o
r
eg
r
o
u
n
d
.
T
ab
le
3
.
Av
ailab
le
m
atch
in
g
t
ec
h
n
iq
u
es
A
u
t
h
o
r
s
Y
e
a
r
Te
c
h
n
i
q
u
e
u
se
d
D
a
t
a
s
e
t
u
s
e
d
P
e
r
f
o
r
ma
n
c
e
e
v
a
l
u
a
t
i
o
n
me
t
r
i
c
R
e
mar
k
s
S
i
n
g
l
a
e
t
a
l
.
[
3
0
]
2
0
2
2
F
u
l
l
y
c
o
n
v
o
l
u
t
i
o
n
n
e
u
r
a
l
n
e
t
w
o
r
k
(
F
C
N
)
C
S
R
C
l
a
t
e
n
t
f
i
n
g
e
r
p
r
i
n
t
t
o
u
c
h
-
l
e
ss
d
a
t
a
b
a
s
e
R
a
n
k
-
k
i
d
e
n
t
i
f
i
c
a
t
i
o
n
S
c
o
r
e
l
e
v
e
l
f
u
si
o
n
e
n
h
a
n
c
e
s
t
h
e
a
c
c
u
r
a
c
y
o
f
i
d
e
n
t
i
f
i
c
a
t
i
o
n
.
Ji
n
d
a
l
a
n
d
S
i
n
g
l
a
[
1
0
]
2
0
2
1
A
C
O
N
I
S
T
S
D
2
7
P
r
e
c
i
s
i
o
n
,
r
e
c
a
l
l
,
F
-
sco
r
e
,
i
m
i
l
a
r
i
t
y
sco
r
e
F
o
r
a
c
c
u
r
a
t
e
m
a
t
c
h
r
e
su
l
t
s,
g
r
o
u
n
d
t
r
u
t
h
v
a
l
u
e
s
a
r
e
u
s
e
d
a
s
b
e
n
c
h
mar
k
s.
H
i
l
l
e
s
e
t
a
l
.
[
3
1
]
2
0
2
1
C
h
a
n
-
V
e
s
e
a
c
t
i
v
e
c
o
n
t
o
u
r
seg
m
e
n
t
a
t
i
o
n
N
I
S
T
S
D
2
7
R
O
C
C
M
C
R
a
n
k
-
1
i
d
e
n
t
i
f
i
c
a
t
i
o
n
F
o
r
g
o
o
d
i
ma
g
e
s,
mat
c
h
i
n
g
a
c
c
u
r
a
c
y
i
s
7
2
%
A
U
C
t
h
a
t
i
s
b
e
t
t
e
r
t
h
a
n
t
h
e
c
o
n
v
e
n
t
i
o
n
a
l
met
h
o
d
s.
G
u
e
t
a
l
.
[
3
2
]
2
0
2
1
D
e
n
se
sam
p
l
i
n
g
N
I
S
T
S
D
2
7
I
I
I
TD
-
M
O
LF
C
M
C
R
a
n
k
-
1
i
d
e
n
t
i
f
i
c
a
t
i
o
n
P
r
e
c
i
se
r
e
g
i
s
t
r
a
t
i
o
n
met
h
o
d
g
i
v
e
s
mo
r
e
a
c
c
u
r
a
t
e
r
e
s
u
l
t
s
a
s
c
o
m
p
a
r
e
d
t
o
c
o
a
r
se
r
e
g
i
s
t
r
a
t
i
o
n
.
D
e
sh
p
a
n
d
e
e
t
a
l
.
[
3
3
]
2
0
2
0
C
N
N
A
I
F
V
C
2
0
0
4
N
I
S
T
S
D
2
7
C
o
n
f
u
s
i
o
n
ma
t
r
i
x
P
r
o
p
o
se
d
m
o
d
e
l
i
s
r
o
b
u
st
a
g
a
i
n
st
sca
l
e
a
n
d
r
o
t
a
t
i
o
n
.
N
g
u
y
e
n
a
n
d
J
a
i
n
[
3
4
]
2
0
1
9
P
o
r
e
e
x
t
r
a
c
t
i
o
n
a
n
d
m
a
t
c
h
i
n
g
N
I
S
T
S
D
3
0
N
I
S
T
SD
4
C
M
C
c
u
r
v
e
P
r
e
c
i
s
i
o
n
R
e
c
a
l
l
,
F
1
-
sc
o
r
e
P
o
r
e
ma
t
c
h
e
r
c
a
n
i
mp
r
o
v
e
t
h
e
i
d
e
n
t
i
f
i
c
a
t
i
o
n
w
i
t
h
a
v
e
r
a
g
e
n
u
mb
e
r
o
f
mi
n
u
t
i
a
e
.
M
a
n
i
c
k
a
m
e
t
a
l
.
[
3
5
]
2
0
1
8
S
I
F
T
F
V
C
2
0
0
4
I
I
I
TD
l
a
t
e
n
t
f
i
n
g
e
r
p
r
i
n
t
M
i
n
u
t
i
a
e
ma
t
c
h
sco
r
e
V
a
l
u
e
o
f
1
i
s
r
e
q
u
i
r
e
d
i
n
o
r
d
e
r
t
o
ma
i
n
t
a
i
n
t
h
e
q
u
a
l
i
t
y
o
f
t
h
e
i
m
a
g
e
.
Ez
e
o
b
i
e
j
e
s
i
a
n
d
B
h
a
n
u
[
3
6
]
2
0
1
8
P
a
t
c
h
-
b
a
se
d
N
I
S
T
S
D
2
7
N
I
S
T
S
D
4
R
a
n
k
-
1
i
d
e
n
t
i
f
i
c
a
t
i
o
n
W
i
t
h
p
a
t
c
h
-
b
a
s
e
d
mat
c
h
i
n
g
,
i
d
e
n
t
i
f
i
c
a
t
i
o
n
a
c
c
u
r
a
c
y
h
a
s
b
e
e
n
si
g
n
i
f
i
c
a
n
t
l
y
i
mp
r
o
v
e
d
.
A
p
atch
alig
n
m
e
n
t
an
d
m
atch
in
g
m
eth
o
d
p
r
o
p
o
s
ed
b
y
Gu
et
a
l
.
[
3
2
]
u
s
es
s
am
p
led
p
o
i
n
ts
as
k
ey
p
o
in
ts
in
s
tead
o
f
th
e
m
in
u
ti
ae
ex
tr
ac
tio
n
p
h
ase
f
o
r
m
atc
h
in
g
laten
t
f
i
n
g
er
p
r
in
ts
.
I
t
c
o
m
p
u
tes
alig
n
m
e
n
t
p
ar
am
eter
s
b
etwe
en
d
if
f
e
r
en
t i
m
ag
e
p
atch
es a
n
d
d
ete
r
m
in
es th
e
s
im
ilar
ities
b
etwe
en
th
em
.
I
n
th
e
y
ea
r
2
0
2
0
,
a
m
o
d
el
n
a
m
ed
c
o
m
b
in
atio
n
o
f
n
ea
r
est
n
eig
h
b
o
r
ar
r
a
n
g
em
e
n
t
in
d
ex
i
n
g
(
C
NNAI
)
b
ased
o
n
a
m
in
u
tia
-
b
ased
C
NN
was
in
tr
o
d
u
ce
d
[
3
3
]
.
I
n
th
is
m
eth
o
d
,
n
lo
ca
l
n
ea
r
est
n
eig
h
b
o
r
s
o
f
ce
n
tr
al
m
in
u
tiae
wer
e
id
en
tifie
d
f
o
r
m
atch
in
g
,
an
d
r
o
tatio
n
-
s
ca
le
in
v
ar
ian
t
f
ea
tu
r
e
v
ec
to
r
s
wer
e
g
en
er
ated
.
Nex
t,
N
g
u
y
e
n
an
d
J
ain
[
3
4
]
in
tr
o
d
u
ce
d
a
f
r
am
ewo
r
k
t
h
at
p
er
f
o
r
m
s
en
d
-
to
-
en
d
p
o
r
e
ex
tr
ac
tio
n
a
n
d
m
atch
in
g
.
I
t
u
s
es
lev
el
-
3
p
o
r
e
f
ea
tu
r
es
f
o
r
laten
t
f
in
g
er
p
r
in
t
m
atch
in
g
an
d
c
o
m
p
r
is
es
two
m
o
d
u
les
n
am
ed
m
in
u
tiae
an
d
p
o
r
e
m
atch
in
g
.
I
f
th
e
d
ec
is
io
n
b
ased
o
n
m
in
u
tiae
was a
m
b
i
g
u
o
u
s
,
th
en
p
o
r
e
m
atch
in
g
was u
s
ed
a
s
a
co
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p
lem
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tep
f
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m
atch
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p
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Evaluation Warning : The document was created with Spire.PDF for Python.
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Fu
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SIFT
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o
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m
atch
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tech
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iq
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was
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at
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tili
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ty
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et
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th
e
co
n
tr
ast
en
h
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ce
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en
t
[
3
5
]
.
I
n
2
0
1
8
,
a
p
at
ch
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ased
m
atch
in
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tech
n
iq
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e
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ted
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d
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n
eu
r
al
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etwo
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k
s
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am
ed
th
e
r
ep
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tatio
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g
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etwo
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k
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R
L
N)
a
n
d
s
im
ilar
it
y
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n
in
g
n
etwo
r
k
(
SLN)
,
wer
e
u
s
ed
in
t
h
is
m
eth
o
d
[
3
6
]
.
3.
DATA
B
AS
E
S AV
AI
L
AB
L
E
F
O
R
L
AT
E
NT
F
I
NG
E
RP
R
I
NT
S
L
aten
t
f
in
g
er
p
r
in
t
d
atab
ases
,
r
o
lled
an
d
p
lain
d
atab
ases
ar
e
th
r
ee
ca
teg
o
r
ies
in
to
wh
ic
h
f
in
g
er
p
r
i
n
t
d
atab
ases
ca
n
b
e
m
ai
n
ly
cl
ass
if
ied
.
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f
in
g
e
r
p
r
in
ts
a
r
e
u
s
ed
co
m
m
e
r
cially
,
w
h
ile
r
o
lled
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d
laten
t
f
in
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r
in
ts
ar
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u
s
ed
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o
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f
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e
n
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ic
-
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elate
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o
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p
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g
r
ap
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y
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d
v
ar
io
u
s
ch
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m
icals
ar
e
u
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ed
f
o
r
ca
p
tu
r
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g
laten
t
f
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g
er
p
r
in
ts
,
to
g
et
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lain
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in
g
er
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r
in
ts
,
s
im
p
le
im
p
r
ess
io
n
s
o
f
f
in
g
er
s
u
s
in
g
m
ac
h
in
es
f
itted
with
s
en
s
o
r
s
ar
e
u
s
ed
[
3
7
]
.
B
y
r
o
llin
g
th
e
f
in
g
er
s
f
r
o
m
eith
er
s
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e
ca
n
g
et
t
h
e
r
o
lled
f
in
g
er
p
r
i
n
ts
[
3
8
]
.
So
m
e
o
f
th
e
c
o
m
m
o
n
ly
u
s
ed
d
atab
ases
ar
e
as f
o
llo
ws.
3
.
1
.
I
I
I
T
D
la
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ent
f
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print
da
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I
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T
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l
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D
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i
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I
I
I
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D
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m
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s
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s
a
r
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t
h
e
r
e
[
3
9
]
.
T
h
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e
s
a
m
p
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a
v
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4
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T
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V
.
3
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2
.
IIITD
-
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ulti
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ca
l la
t
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I
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atab
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tch
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ter
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t
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id
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to
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ed
as DB1
,
DB
2
,
DB
3
,
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3
_
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4
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DB
5
co
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tain
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im
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if
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izes
[
4
1
]
,
[
4
2
]
.
3
.
3
.
IIITD
-
m
ulti
-
s
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a
ce
la
t
ent
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print
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ba
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Mu
l
ti
-
s
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r
f
ac
e
la
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f
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p
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(
MS
L
F)
d
ata
b
as
e
.
I
t
h
as
a
c
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ll
ec
t
io
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o
f
5
5
1
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te
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t
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5
1
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.
E
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g
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t
d
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f
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er
en
t
s
u
r
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ce
s
,
li
k
e
tr
a
n
s
p
ar
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n
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g
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,
c
o
m
p
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d
is
cs,
ce
r
a
m
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c
m
u
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s
,
c
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,
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te
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g
lass
,
C
D
m
ai
le
r
s
,
h
a
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b
o
u
n
d
b
o
o
k
c
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v
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s
,
a
n
d
p
a
p
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b
a
c
k
b
o
o
k
co
v
e
r
s
,
ar
e
u
s
e
d
f
o
r
th
e
im
a
g
e
c
ap
tu
r
i
n
g
[
4
3
]
.
3
.
4
.
Na
t
io
na
l In
s
t
it
ute
o
f
Sta
nd
a
rds
a
nd
T
ec
hn
o
lo
g
y
s
pec
ia
l da
t
a
ba
s
e
2
7
I
t
i
s
c
a
ll
e
d
t
h
e
N
at
i
o
n
a
l
I
n
s
t
i
t
u
te
o
f
S
t
a
n
d
a
r
d
s
a
n
d
T
e
c
h
n
o
l
o
g
y
s
p
e
c
i
a
l
d
at
a
b
a
s
e
27
(
N
I
ST
S
D2
7
)
.
I
t
i
s
a
p
u
b
l
i
c
l
y
a
v
a
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a
b
l
e
d
a
ta
b
a
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e
p
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v
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d
b
y
N
I
S
T
i
n
c
o
l
l
a
b
o
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a
t
i
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n
w
i
t
h
t
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e
F
e
d
e
r
a
l
B
u
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a
u
o
f
I
n
v
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s
t
i
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(
F
B
I
)
.
I
t
h
a
s
a
c
o
l
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t
i
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f
2
5
8
f
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p
r
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p
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f
t
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.
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cl
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5
0
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p
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p
p
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f
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p
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s
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m
p
l
es
[
4
4
]
,
[
4
5
]
.
E
a
c
h
s
a
m
p
l
e
c
o
n
t
ai
n
s
o
n
e
l
a
te
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f
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f
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m
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a
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d
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m
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k
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ll
e
d
l
at
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n
t
e
x
a
m
i
n
e
r
s
[
4
6
]
.
3
.
5
.
F
ing
er
print
v
er
if
ica
t
io
n
co
m
pet
it
io
n
2
0
0
2
I
t
is
k
n
o
wn
t
h
at
th
e
f
i
n
g
er
p
r
in
t
v
er
if
icatio
n
c
o
m
p
etitio
n
(
FVC
)
ev
alu
ated
in
2
0
0
2
.
I
t
c
o
m
p
r
is
es
f
o
u
r
d
atab
ases
DB
1
,
DB
2
,
DB
3
,
a
n
d
DB
4
,
an
d
ea
ch
d
atab
ase
c
o
n
tain
s
8
8
0
f
in
g
e
r
p
r
in
ts
in
to
t
al
[
4
7
]
.
Sam
p
les
in
DB
1
an
d
DB
2
ar
e
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llected
u
s
in
g
o
p
tical
s
en
s
o
r
s
n
am
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T
o
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I
an
d
FX2
0
0
0
[
4
8
]
.
Usi
n
g
ca
p
ac
itiv
e
s
en
s
o
r
1
0
0
SC
,
im
ag
es
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r
e
ca
p
tu
r
ed
an
d
s
to
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ed
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DB
3
,
wh
er
ea
s
a
f
in
g
er
p
r
in
t
s
y
n
t
h
etic
g
en
er
atio
n
tech
n
iq
u
e
is
u
s
ed
to
co
llect
im
ag
es f
o
r
D
B
4
.
3
.
6
.
F
ing
er
print
v
er
if
ica
t
io
n
co
m
pet
it
io
n
2
0
0
4
I
t
is
th
e
th
ir
d
in
ter
n
atio
n
al
F
VC
ev
alu
ated
in
2
0
0
4
.
I
t
is
ca
teg
o
r
ized
i
n
to
f
o
u
r
d
atab
ase
s
an
d
ea
ch
d
atab
ase
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n
tain
s
1
,
4
4
0
f
in
g
e
r
p
r
in
t
im
p
r
ess
io
n
s
[
4
9
]
.
T
h
e
two
d
atab
ases
ar
e
co
llected
t
h
r
o
u
g
h
th
e
o
p
tical
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en
s
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r
s
C
r
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s
s
Ma
tch
V3
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0
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d
Dig
ital
Per
s
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n
a
U.
ar
e.
U
4
0
0
0
.
T
h
e
th
ir
d
an
d
f
o
u
r
th
d
atab
ase
is
co
llected
u
s
in
g
th
er
m
al
s
wee
p
in
g
s
en
s
o
r
n
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m
ed
th
e
Atm
el
Fin
g
er
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h
ip
,
an
d
th
e
f
o
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r
th
d
atab
ase
is
co
llected
th
r
o
u
g
h
th
e
s
y
n
th
etic
g
en
er
ato
r
tech
n
i
q
u
e
SF
in
Ge
[
5
0
]
.
4.
P
E
RF
O
RM
A
NCE A
NAL
YS
I
S
I
n
th
is
s
ec
tio
n
,
th
e
p
er
f
o
r
m
a
n
c
e
o
f
v
ar
io
u
s
tech
n
iq
u
es
f
o
r
d
if
f
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n
d
1
4
y
e
a
rs
o
f
tea
c
h
in
g
e
x
p
e
rien
c
e
.
He
r
a
re
a
o
f
sp
e
c
ializ
a
ti
o
n
is
ima
g
e
p
ro
c
e
ss
in
g
,
m
a
c
h
in
e
lea
rn
i
n
g
,
a
n
d
d
e
si
g
n
&
a
n
a
ly
sis o
f
a
lg
o
rit
h
m
s.
S
h
e
h
a
s
p
u
b
li
sh
e
d
2
b
o
o
k
c
h
a
p
ters
a
n
d
8
p
a
p
e
rs
in
t
h
e
re
p
u
ted
jo
u
rn
a
ls
a
n
d
c
o
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fe
re
n
c
e
s
.
S
h
e
c
a
n
b
e
c
o
n
tac
ted
a
t
e
m
a
il
:
n
a
n
d
it
a
.
m
a
li
k
2
7
2
1
@
g
m
a
il
.
c
o
m
.
S
a
n
j
a
y
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in
g
la
is
P
ro
fe
ss
o
r
a
t
Ch
a
n
d
i
g
a
rh
U
n
iv
e
rsit
y
,
M
o
h
a
li
,
I
n
d
ia.
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re
c
e
iv
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d
a
P
h
.
D
.
d
e
g
re
e
in
C
o
m
p
u
ter
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c
ien
c
e
fro
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M
a
h
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rish
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Da
y
a
n
a
n
d
Un
iv
e
rsity
,
Ro
h
tak
,
In
d
ia
se
rv
e
d
a
s
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a
d
o
f
th
e
De
p
a
rtme
n
t
at
t
h
e
In
stit
u
te
o
f
En
g
in
e
e
rin
g
a
n
d
Tec
h
n
o
lo
g
y
,
Ba
d
d
a
l
,
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d
ia.
He
h
a
s
a
lmo
st 2
0
y
e
a
rs o
f
a
c
a
d
e
m
ic
a
n
d
re
se
a
rc
h
e
x
p
e
rien
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e
.
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is
a
n
a
c
ti
v
e
m
e
m
b
e
r
o
f
th
e
e
d
i
to
rial
b
o
a
rd
/rev
iew
e
r
in
v
a
rio
u
s
re
p
u
ted
j
o
u
rn
a
ls.
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is
t
h
e
a
u
th
o
r
o
r
c
o
a
u
th
o
r
o
f
m
o
re
th
a
n
4
0
p
a
p
e
rs
i
n
in
ter
n
a
ti
o
n
a
l
r
e
fe
re
e
d
jo
u
rn
a
ls
a
n
d
c
o
n
fe
re
n
c
e
p
ro
c
e
e
d
in
g
s.
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re
se
a
rc
h
in
tere
sts
in
c
l
u
d
e
so
f
twa
re
tes
ti
n
g
,
so
ftwa
re
e
n
g
in
e
e
rin
g
,
i
m
a
g
e
p
r
o
c
e
ss
in
g
,
m
a
c
h
i
n
e
lea
rn
i
n
g
a
n
d
so
ft
c
o
m
p
u
ti
n
g
.
He
c
a
n
b
e
c
o
n
tac
ted
a
t
e
m
a
il
:
sa
n
jay
.
e
1
3
5
3
8
@
c
u
m
a
il
.
in
.
G
o
p
a
l
Ra
th
i
n
a
m
is
c
u
rre
n
t
l
y
wo
rk
i
n
g
a
s
a
P
r
o
fe
ss
o
r
a
t
U
n
iv
e
rsity
o
f
Bu
ra
imi,
Al
Bu
ra
imi,
Om
a
n
.
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re
c
e
iv
e
d
a
P
h
.
D.
d
e
g
re
e
fro
m
De
p
a
rt
m
e
n
t
o
f
In
f
o
rm
a
ti
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a
n
d
c
o
m
m
u
n
ica
ti
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E
n
g
in
e
e
rin
g
,
A
n
n
a
Un
i
v
e
rsity
,
I
n
d
ia.
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h
a
s
se
rv
e
d
o
n
m
a
n
y
tec
h
n
ica
l
p
ro
g
ra
m
c
o
m
m
it
tee
s
a
n
d
a
s
re
v
iew
e
r
in
re
p
u
te
d
jo
u
rn
a
ls
li
k
e
wire
les
s
p
e
rso
n
a
l
c
o
m
m
u
n
ica
ti
o
n
,
S
p
rin
g
e
r.
His
r
e
se
a
rc
h
in
tere
sts
in
c
lu
d
e
s
p
a
n
wire
les
s
se
n
so
r
n
e
two
rk
s,
m
a
li
c
io
u
s
n
o
d
e
d
e
tec
ti
o
n
,
c
o
o
p
e
ra
ti
v
e
n
e
two
r
k
s,
a
n
d
i
n
tern
e
t
o
f
t
h
i
n
g
s
.
He
h
a
s
a
l
ist
o
f
p
u
b
li
c
a
ti
o
n
s
in
re
p
u
te
d
j
o
u
r
n
a
ls,
e
d
it
o
r
fo
r
2
S
c
o
p
u
s
in
d
e
x
e
d
b
o
o
k
s
,
a
n
d
p
u
b
li
sh
e
d
8
b
o
o
k
c
h
a
p
t
e
rs.
He
c
a
n
b
e
c
o
n
tac
ted
a
t
e
m
a
il
:
g
o
p
a
l.
r@u
o
b
.
e
d
u
.
o
m
.
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