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rticle
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d
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e
CC B
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-
SA
li
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se
.
C
o
r
r
e
s
p
o
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A
uth
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r
:
R
icar
d
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Yau
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Facu
ltad
d
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I
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en
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ía,
Un
i
v
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s
id
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T
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ló
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Per
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al.
Nata
lio
San
ch
ez
Nr
o
.
1
2
5
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im
a,
Per
ú
E
m
ail: b
o
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9
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g
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1.
I
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D
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O
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C
u
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en
tly
,
s
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r
ity
in
u
r
b
a
n
h
o
m
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cr
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s
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e
d
u
e
to
b
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-
in
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th
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in
ter
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f
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in
g
s
(
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[
1
]
a
n
d
ar
tific
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in
tellig
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(
AI
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to
im
p
r
o
v
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s
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[
2
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alg
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m
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3
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allo
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to
m
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co
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tr
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th
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[
4
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.
Ho
wev
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k
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s
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wh
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1
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,
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in
v
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[
1
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.
T
h
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in
d
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a
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Evaluation Warning : The document was created with Spire.PDF for Python.
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E
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s
[
2
6
]
.
I
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h
n
o
lo
g
ies
ap
p
lied
to
s
ec
u
r
ity
an
d
r
em
o
te
m
o
n
ito
r
i
n
g
h
av
e
b
ee
n
u
s
ed
f
o
r
r
ea
l
-
t
im
e
co
n
tr
o
l
[
2
7
]
,
[
2
8
]
,
h
o
m
e
m
o
n
ito
r
in
g
with
s
m
ar
tp
h
o
n
es,
ca
m
e
r
as,
an
d
a
u
to
m
atic
n
o
tific
atio
n
s
[
2
9
]
,
[
3
0
]
(
T
ab
le
1
).
T
ab
le
1
.
C
o
m
p
a
r
is
o
n
o
f
r
elate
d
s
m
ar
t lo
ck
a
n
d
f
ac
ial
r
ec
o
g
n
itio
n
s
y
s
tem
s
Ref
e
r
e
n
c
e
s
P
l
a
t
f
o
r
m
F
a
c
i
a
l
r
e
c
o
g
n
i
t
i
o
n
C
o
n
n
e
c
t
i
v
i
t
y
R
e
m
o
t
e
m
o
n
i
t
o
r
i
n
g
M
o
b
i
l
e
c
o
n
t
r
o
l
P
e
c
o
l
t
e
t
a
l
.
[
3
]
R
a
s
p
b
e
r
r
y
P
i
Y
e
s
Li
mi
t
e
d
No
No
A
l
z
h
r
a
n
i
e
t
a
l
.
[
4]
S
mart
L
o
c
k
e
r
Y
e
s
Y
e
s
Li
mi
t
e
d
No
K
o
l
l
u
r
u
e
t
a
l
.
[
2
1
]
R
a
s
p
b
e
r
r
y
P
i
Si
Y
e
s
Y
e
s
No
P
B
V
[
2
4
]
ESP
3
2
-
C
A
M
A
I
f
a
c
e
d
e
t
e
c
t
i
o
n
Y
e
s
Li
mi
t
e
d
No
A
w
a
n
g
g
a
[
2
5
]
ESP
3
2
-
C
A
M
M
T
C
N
N
Y
e
s
No
No
P
r
o
p
o
se
d
s
y
st
e
m
P
C
+
ESP
3
2
H
i
st
o
g
r
a
m
-
o
r
i
e
n
t
e
d
g
r
a
d
i
e
n
t
(HOG)
+
f
a
c
e
e
n
c
o
d
i
n
g
Y
e
s
Y
e
s (F
l
a
s
k
+
N
g
r
o
k
)
Y
e
s
R
esear
ch
h
as
s
h
o
wn
th
at
it
is
p
o
s
s
ib
le
to
in
teg
r
ate
f
ac
ial
r
ec
o
g
n
itio
n
an
d
I
o
T
tech
n
iq
u
es
f
o
r
ac
ce
s
s
co
n
tr
o
l.
H
o
wev
er
,
m
o
s
t
s
y
s
tem
s
d
o
n
o
t
ev
alu
ate
t
h
e
p
r
ac
t
ical
in
teg
r
atio
n
o
f
b
i
o
m
etr
ic
au
th
en
ticatio
n
f
o
r
r
esid
en
tial
en
v
ir
o
n
m
en
ts
.
I
n
ad
d
itio
n
,
r
ec
o
g
n
itio
n
s
y
s
tem
s
u
s
in
g
n
e
u
r
al
n
etwo
r
k
s
r
e
q
u
ir
e
co
m
p
u
tatio
n
al
r
eso
u
r
ce
s
,
an
d
alth
o
u
g
h
E
SP
3
2
-
b
ased
s
o
lu
tio
n
,
th
ey
d
o
n
o
t v
alid
ate
th
e
in
ter
ac
tio
n
b
etwe
e
n
f
ac
ial
r
ec
o
g
n
itio
n
an
d
I
o
T
co
m
m
u
n
icatio
n
.
T
h
is
r
esear
ch
p
r
o
p
o
s
es
th
e
d
ev
el
o
p
m
en
t
o
f
a
n
I
o
T
s
m
ar
t
lo
c
k
s
y
s
tem
in
teg
r
atin
g
f
ac
ial
r
ec
o
g
n
itio
n
tech
n
iq
u
es
to
au
to
m
ate
ac
ce
s
s
to
u
r
b
an
h
o
m
es.
T
h
e
co
n
tr
ib
u
tio
n
o
f
th
is
wo
r
k
is
n
o
t
a
n
ew
f
ac
ial
r
ec
o
g
n
itio
n
al
g
o
r
ith
m
b
u
t
t
o
s
h
o
w
an
in
teg
r
ated
a
r
ch
it
ec
tu
r
e
with
:
i)
HOG
-
b
ased
f
ac
ial
r
ec
o
g
n
itio
n
,
ii)
co
n
tr
o
l
o
f
lo
ck
s
with
E
SP
3
2
,
iii)
Flas
k
an
d
Ng
r
o
k
tu
n
n
el
s
er
v
ices,
an
d
iv
)
co
n
tr
o
l.
Fro
m
an
em
b
e
d
d
ed
s
y
s
tem
s
p
er
s
p
ec
tiv
e,
th
is
wo
r
k
v
alid
ates
a
h
ar
d
war
e
an
d
s
o
f
twar
e
ar
ch
itectu
r
e
wh
er
e
b
io
m
etr
ic
p
r
o
ce
s
s
in
g
is
s
ep
ar
ated
f
r
o
m
r
ea
l
-
tim
e
em
b
e
d
d
ed
c
o
n
tr
o
l t
ask
s
.
2.
RE
S
E
ARCH
M
E
T
H
O
D
T
h
e
s
y
s
tem
in
teg
r
ates
a
f
ac
ial
r
ec
o
g
n
itio
n
s
tag
e
with
th
e
I
o
T
to
au
to
m
ate
ac
ce
s
s
to
a
h
o
m
e.
Op
er
atio
n
b
eg
in
s
wh
en
th
e
u
s
er
'
s
f
ac
e
is
ca
p
tu
r
ed
b
y
a
7
2
0
-
p
ix
el
ca
m
er
a,
an
d
a
f
ac
ial
r
ec
o
g
n
itio
n
alg
o
r
ith
m
d
ev
elo
p
ed
in
Py
th
o
n
is
ex
ec
u
ted
o
n
a
co
m
p
u
ter
.
T
h
is
alg
o
r
ith
m
in
co
r
p
o
r
a
tes
a
p
r
o
ce
s
s
b
ased
o
n
d
ee
p
n
eu
r
al
n
etwo
r
k
s
th
a
t
u
s
es
f
ac
ial
en
co
d
in
g
s
[
3
1
]
,
[
3
2
]
,
an
d
f
ac
e
d
etec
tio
n
is
p
er
f
o
r
m
e
d
u
s
in
g
t
h
e
HOG
m
eth
o
d
[
3
3
]
,
[
3
4
]
.
HOG
tech
n
iq
u
e
w
as
s
elec
ted
in
th
is
wo
r
k
b
ec
a
u
s
e
th
e
g
o
al
is
to
d
ev
elo
p
a
l
o
w
-
co
s
t
an
d
ea
s
y
-
to
-
im
p
lem
en
t
p
r
o
ce
s
s
.
T
h
er
ef
o
r
e,
co
m
p
ar
e
d
to
C
NN
-
b
ased
m
o
d
els,
HOG
r
eq
u
ir
es
f
ewe
r
co
m
p
u
tatio
n
al
r
eso
u
r
ce
s
an
d
h
as
m
o
r
e
r
estrictiv
e
h
ar
d
war
e
r
eq
u
ir
e
m
en
ts
.
Fu
r
th
e
r
m
o
r
e,
f
ac
ial
r
ec
o
g
n
itio
n
em
p
lo
y
s
a
d
is
tan
ce
-
b
ased
v
er
if
icatio
n
ap
p
r
o
ac
h
wh
er
e
ea
ch
f
ac
e
h
as
f
ea
t
u
r
e
v
ec
t
o
r
s
th
at
ar
e
co
m
p
ar
ed
t
o
p
r
e
-
s
to
r
ed
en
c
o
d
in
g
s
f
o
r
id
en
tific
atio
n
.
Su
b
s
eq
u
en
tly
,
a
n
E
SP
3
2
m
icr
o
co
n
t
r
o
ller
r
ec
ei
v
es
th
e
in
s
tr
u
ctio
n
to
o
p
en
o
r
clo
s
e
th
e
s
o
l
en
o
id
lo
ck
v
ia
a
r
elay
.
A
d
d
itio
n
ally
,
th
e
alg
o
r
ith
m
'
s
o
p
er
atio
n
is
o
b
s
er
v
ed
th
r
o
u
g
h
a
m
o
b
ile
a
p
p
licatio
n
,
an
d
th
e
"tu
n
n
elin
g
"
with
Ng
r
o
k
(
Fig
u
r
e
1
).
Sy
s
tem
p
r
o
ce
s
s
es
ar
e
d
is
tr
ib
u
ted
b
etwe
en
th
e
d
esk
to
p
c
o
m
p
u
ter
an
d
t
h
e
em
b
ed
d
ed
s
y
s
tem
.
I
m
ag
e
ac
q
u
is
itio
n
,
f
ac
ial
r
ec
o
g
n
itio
n
u
s
in
g
HOG,
en
co
d
i
n
g
g
e
n
er
ati
o
n
,
an
d
id
en
tity
v
er
if
icatio
n
a
r
e
p
er
f
o
r
m
ed
o
n
th
e
d
esk
to
p
co
m
p
u
ter
d
u
e
to
h
a
r
d
war
e
r
eq
u
i
r
em
en
ts
.
Me
an
w
h
ile,
th
e
E
SP
3
2
m
icr
o
co
n
t
r
o
ller
h
an
d
les
lo
ck
ac
tiv
atio
n
,
r
elay
co
n
tr
o
l,
s
tatu
s
in
d
icatio
n
,
an
d
th
e
e
x
ec
u
t
io
n
o
f
co
m
m
an
d
s
r
ec
eiv
e
d
f
r
o
m
th
e
r
ec
o
g
n
itio
n
s
o
f
twar
e.
T
h
is
task
o
r
g
an
izatio
n
r
ed
u
ce
s
th
e
p
r
o
ce
s
s
in
g
lo
ad
o
n
th
e
em
b
ed
d
e
d
s
y
s
tem
wh
ile
m
ain
tain
in
g
I
o
T
-
b
ased
co
n
tr
o
l
f
u
n
ctio
n
ali
ties
(
T
ab
le
2
)
.
T
h
e
ar
ch
itect
u
r
e
d
e
m
o
n
s
tr
ates
a
h
ar
d
war
e
-
s
o
f
twar
e
co
-
d
esig
n
ap
p
r
o
ac
h
wh
er
e
a
s
tan
d
ar
d
m
i
cr
o
co
m
p
u
ter
h
a
n
d
les
r
eso
u
r
ce
-
in
ten
s
iv
e
f
ac
ial
r
ec
o
g
n
itio
n
o
p
er
atio
n
s
,
wh
ile
th
e
E
SP
3
2
p
er
f
o
r
m
s
co
n
tr
o
l ta
s
k
s
f
o
r
lo
c
k
ac
tiv
atio
n
.
2
.
1
.
F
a
cia
l r
ec
o
g
nitio
n a
lg
o
r
it
hm
des
ig
n
T
o
p
er
f
o
r
m
f
ac
ial
r
ec
o
g
n
itio
n
,
p
h
o
to
s
o
f
an
a
u
th
o
r
ize
d
u
s
er
a
r
e
s
to
r
ed
f
o
r
tr
ain
in
g
th
e
m
o
d
el
u
s
in
g
th
e
HOG
tech
n
iq
u
e,
an
d
f
ac
ial
en
co
d
in
g
s
ar
e
g
e
n
er
ated
i
n
a
"
p
i
ck
le"
f
ile.
T
h
e
v
i
d
eo
f
ee
d
c
o
n
t
ain
in
g
th
e
d
etec
tio
n
is
tr
an
s
m
itted
v
ia
th
e
Flas
k
f
r
am
ewo
r
k
to
a
l
o
ca
l
web
s
er
v
er
.
T
h
e
f
lo
wch
ar
t
illu
s
tr
ates
th
e
r
eg
is
tr
atio
n
p
r
o
ce
s
s
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
0
8
9
-
4
8
6
4
I
n
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n
f
ig
u
r
a
b
le
&
E
m
b
ed
d
ed
Sy
s
t
,
Vo
l.
15
,
No
.
3
,
No
v
em
b
er
2
0
2
6
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746
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755
748
f
o
r
a
n
ew
au
th
o
r
ized
u
s
er
.
T
h
e
p
r
o
ce
s
s
b
eg
in
s
with
th
e
u
s
er
en
ter
in
g
th
eir
n
a
m
e.
T
h
e
d
a
ta
is
th
en
s
to
r
ed
in
f
o
ld
er
s
,
an
d
w
h
en
th
e
ca
m
e
r
a
b
ec
o
m
es
av
ailab
le,
a
lo
o
p
s
tar
ts
to
d
is
p
lay
th
e
im
ag
es
in
r
ea
l
tim
e.
T
h
e
u
s
er
in
ter
ac
ts
with
th
e
s
y
s
tem
to
t
ak
e
a
p
ictu
r
e
o
f
th
e
f
r
am
e
a
n
d
g
e
n
er
ate
a
f
ile
with
th
e
d
ate
an
d
tim
e
s
tam
p
(
Fig
u
r
e
2
).
Fig
u
r
e
1
.
Pro
ject
c
o
m
p
o
n
en
t
d
iag
r
am
T
ab
le
2
.
Fu
n
ctio
n
al
d
is
tr
ib
u
tio
n
o
f
task
s
with
in
th
e
p
r
o
p
o
s
ed
ar
ch
itectu
r
e
C
o
m
p
o
n
e
n
t
M
a
i
n
f
u
n
c
t
i
o
n
D
e
sk
t
o
p
c
o
m
p
u
t
e
r
F
a
c
e
d
e
t
e
c
t
i
o
n
u
s
i
n
g
H
O
G
,
f
a
c
i
a
l
e
n
c
o
d
i
n
g
,
i
d
e
n
t
i
t
y
v
e
r
i
f
i
c
a
t
i
o
n
,
a
n
d
v
i
d
e
o
st
r
e
a
mi
n
g
ESP
3
2
R
e
l
a
y
a
c
t
i
v
a
t
i
o
n
,
l
o
c
k
a
c
t
u
a
t
i
o
n
,
LED
st
a
t
u
s
i
n
d
i
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.
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nitio
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f
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tio
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if
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at,
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o
v
ed
f
ac
es
ar
e
v
is
u
ally
d
is
p
lay
ed
with
a
lab
el
with
in
a
1
-
m
eter
r
an
g
e.
On
e
d
r
aw
b
ac
k
is
th
e
d
etec
tio
n
d
is
tan
ce
u
s
in
g
th
e
"f
ac
e_
d
is
tan
ce
"
f
u
n
ctio
n
,
s
o
th
e
b
est
m
atch
is
s
elec
ted
u
s
in
g
th
e
"a
r
g
m
in
"
f
u
n
ctio
n
.
T
h
is
e
n
s
u
r
es
th
at
o
n
l
y
th
e
m
o
s
t
s
im
ilar
f
ac
e
is
ac
ce
p
ted
,
r
e
d
u
cin
g
f
alse
p
o
s
itiv
es.
T
h
e
alg
o
r
ith
m
is
s
till
s
u
s
ce
p
tib
le
to
lig
h
t
co
v
e
r
in
g
p
a
r
t
o
f
th
e
f
ac
e
d
u
e
to
th
e
HOG
m
eth
o
d
(
Fig
u
r
e
1
0
)
.
R
eg
ar
d
in
g
th
e
u
s
er
“p
atr
ick
”,
f
ac
ial
r
ec
o
g
n
itio
n
was
n
o
t
ac
h
iev
ed
f
o
r
p
h
o
to
s
with
s
tr
o
n
g
co
n
tr
ast
b
etwe
en
lig
h
t
an
d
d
ar
k
ar
ea
s
.
T
h
er
ef
o
r
e,
th
ese
r
esu
lts
in
d
ic
ate
th
at
th
e
alg
o
r
ith
m
h
as
d
if
f
icu
lty
r
ec
o
g
n
izin
g
r
eg
is
ter
ed
u
s
er
s
,
as e
v
id
en
ce
d
b
y
th
e
r
ec
all
v
alu
e
a
n
d
f
alse n
eg
ativ
es.
Fo
r
th
is
r
ea
s
o
n
,
it wa
s
d
ec
id
ed
to
r
ed
u
c
e
th
e
s
en
s
itiv
ity
o
f
f
ac
ial
r
ec
o
g
n
itio
n
b
y
u
s
in
g
a
m
a
x
im
u
m
E
u
clid
ea
n
d
is
tan
ce
t
h
r
esh
o
l
d
b
etwe
en
th
e
f
ac
e
en
co
d
in
g
an
d
th
e
ca
m
er
a
(
T
ab
le
3
).
Fig
u
r
e
9
.
Face
d
etec
tio
n
u
s
in
g
th
e
HOG
m
eth
o
d
Fig
u
r
e
10
.
R
ec
o
g
n
itio
n
o
f
au
t
h
o
r
ized
a
n
d
u
n
au
th
o
r
ized
u
s
er
s
T
ab
le
3
.
Per
f
o
r
m
an
ce
p
ar
am
et
er
s
f
o
r
th
e
f
ac
ial
r
ec
o
g
n
itio
n
a
lg
o
r
ith
m
P
a
r
a
me
t
e
r
V
a
l
u
e
F
o
r
mu
l
a
I
n
t
e
r
p
r
e
t
a
t
i
o
n
A
c
c
u
r
a
c
y
9
6
.
2
%
TP+TN
+
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+
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H
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p
e
r
f
o
r
m
a
n
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e
P
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e
c
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s
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o
n
1
0
0
%
TP+F
P
TP
N
o
u
n
a
u
t
h
o
r
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e
d
a
c
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ss
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∗
p
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c
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Evaluation Warning : The document was created with Spire.PDF for Python.
I
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8
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ed
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l.
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No
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6
:
746
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T
h
e
d
if
f
er
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ce
b
etwe
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ac
cu
r
ac
y
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d
th
e
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wer
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h
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u
s
tiv
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ess
o
f
3
.
8
%
in
d
icate
s
th
at
r
ec
o
g
n
itio
n
er
r
o
r
s
ar
e
r
elate
d
to
f
alse
r
ejec
tio
n
s
.
Du
r
in
g
test
in
g
,
s
o
m
e
au
th
o
r
ized
u
s
er
s
wer
e
n
o
t
r
ec
o
g
n
iz
ed
in
en
v
ir
o
n
m
en
ts
with
co
n
tr
asti
n
g
lig
h
tin
g
.
T
h
e
9
6
.
2
%
ac
cu
r
ac
y
in
d
icate
s
th
at
th
e
s
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ar
ch
itectu
r
e
p
r
o
v
id
es
ad
e
q
u
ate
b
io
m
etr
ic
au
th
en
ticatio
n
f
o
r
h
o
m
e
ac
ce
s
s
co
n
tr
o
l
ap
p
licatio
n
s
.
Fu
r
th
er
m
o
r
e
,
th
e
p
er
f
ec
t
ac
cu
r
ac
y
(
1
0
0
%
)
in
d
icate
s
th
at
n
o
u
n
au
th
o
r
ized
ac
ce
s
s
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s
g
r
an
ted
d
u
r
in
g
test
in
g
,
wh
ile
th
e
co
m
p
leten
ess
(
9
2
.
2
%
)
s
u
g
g
ests
th
at
er
r
o
r
s
ar
e
d
u
e
to
f
alse
r
ejec
tio
n
s
af
f
ec
tin
g
au
th
o
r
ized
u
s
er
s
.
On
th
e
o
th
er
h
an
d
,
c
o
m
p
ar
e
d
t
o
f
ac
ial
r
ec
o
g
n
itio
n
ap
p
r
o
ac
h
es
u
s
in
g
d
ee
p
lear
n
in
g
[
1
6
]
-
[
1
8
]
,
th
e
u
s
e
o
f
HOG
t
ec
h
n
iq
u
es
r
e
q
u
ir
es
f
ewe
r
p
r
o
c
ess
in
g
r
eso
u
r
ce
s
o
n
lo
w
-
co
s
t
d
ev
ices.
I
n
ad
d
itio
n
,
th
e
u
n
lo
ck
tim
e
o
f
0
.
7
8
s
s
h
o
ws
th
at
th
e
in
teg
r
atio
n
o
f
f
ac
ial
r
ec
o
g
n
itio
n
,
co
m
m
u
n
icatio
n
,
a
n
d
lo
ck
ac
tiv
atio
n
h
as
a
d
elay
im
p
er
ce
p
ti
b
le
to
u
s
er
s
,
d
e
m
o
n
s
tr
atin
g
th
at
th
e
s
y
s
tem
'
s
task
d
is
tr
ib
u
tio
n
allo
ws
th
e
E
SP
3
2
to
f
o
c
u
s
o
n
ac
t
u
atio
n
,
wh
il
e
th
e
r
ec
o
g
n
itio
n
p
r
o
ce
s
s
es
ar
e
ex
ec
u
ted
o
n
th
e
d
esk
to
p
p
latf
o
r
m
d
e
v
ice.
3
.
2
.
E
SP3
2
f
o
r
inte
rc
o
nn
ec
t
i
o
n wit
h t
he
ca
m
er
a
a
nd
s
o
leno
id lo
ck
T
h
e
cir
cu
it
co
m
p
o
n
en
ts
wer
e
in
teg
r
ated
an
d
co
n
n
ec
ted
u
s
in
g
th
e
E
SP
3
2
-
W
R
OOM
-
3
2
D
m
o
d
u
le,
a
r
elay
m
o
d
u
le
with
an
o
p
t
o
co
u
p
ler
,
an
d
a
1
2
V
s
o
len
o
id
lo
c
k
.
T
h
e
c
o
n
n
e
ctio
n
to
th
e
E
SP
3
2
was
v
alid
ated
b
y
d
ev
elo
p
in
g
a
Py
th
o
n
p
r
o
g
r
am
o
n
a
co
m
p
u
ter
to
r
u
n
t
h
e
f
ac
ial
r
ec
o
g
n
itio
n
alg
o
r
ith
m
an
d
v
er
if
y
ac
ce
s
s
f
r
o
m
th
e
m
o
b
ile
ap
p
licatio
n
(
Fig
u
r
e
1
1
)
.
W
h
en
an
au
th
o
r
ized
u
s
er
'
s
f
ac
e
is
r
ec
o
g
n
ized
,
a
n
ac
tiv
atio
n
s
ig
n
al
is
s
en
t f
r
o
m
th
e
E
SP
3
2
t
o
ac
tiv
ate
th
e
elec
tr
o
n
ic
lo
c
k
(
Fig
u
r
e
1
1
(
a
)
)
.
Fu
r
th
er
m
o
r
e
,
v
ar
iatio
n
s
b
etwe
en
m
ea
s
u
r
em
en
ts
a
r
e
d
u
e
to
d
if
f
er
en
ce
s
i
n
im
ag
e
ac
q
u
is
itio
n
tim
e,
p
r
o
ce
s
s
in
g
laten
cy
,
an
d
p
o
ten
tial
m
ec
h
an
ical
e
r
r
o
r
s
.
T
h
e
m
ea
s
u
r
e
d
r
esp
o
n
s
e
tim
e
o
f
0
.
7
8
s
c
o
r
r
esp
o
n
d
s
to
th
e
c
u
m
u
lativ
e
d
elay
g
en
er
ated
b
y
t
h
e
s
tag
es
o
f
im
a
g
e
ac
q
u
is
itio
n
,
f
ac
ial
d
etec
tio
n
,
f
ac
ial
en
c
o
d
in
g
,
id
e
n
tity
v
er
if
icatio
n
,
s
er
ial
co
m
m
u
n
icatio
n
,
a
n
d
lo
c
k
ac
tiv
atio
n
.
3
.
3
.
M
o
nito
ring
wit
h t
he
f
a
c
ia
l r
ec
o
g
nitio
n sy
s
t
em
I
n
ad
d
itio
n
to
f
ac
ial
au
t
h
en
tica
tio
n
,
th
e
m
o
n
ito
r
in
g
s
tag
e
allo
ws
f
o
r
r
ea
l
-
tim
e
v
iewin
g
o
f
ac
ce
s
s
ev
en
t
s
v
ia
a
m
o
b
ile
ap
p
licatio
n
.
I
n
t
h
is
ca
s
e,
th
e
u
s
er
r
e
m
o
tely
o
b
s
er
v
es
th
e
v
id
eo
f
ee
d
,
v
er
if
y
i
n
g
th
e
i
d
en
tity
tag
s
ass
ig
n
ed
b
y
th
e
r
ec
o
g
n
itio
n
a
lg
o
r
ith
m
an
d
m
an
u
ally
f
o
r
ci
n
g
th
e
lo
ck
clo
s
ed
.
T
h
is
s
tag
e
co
n
tr
ib
u
tes
to
th
e
au
to
m
ated
au
th
en
ticatio
n
p
r
o
c
ess
with
h
u
m
an
o
v
er
s
ig
h
t.
Un
l
ik
e
co
n
v
en
tio
n
al
elec
tr
o
n
ic
lo
c
k
s
y
s
tem
s
th
at
o
n
ly
p
er
f
o
r
m
a
u
th
en
ticatio
n
,
th
is
s
y
s
tem
in
teg
r
ates r
em
o
te
v
is
u
al
m
o
n
ito
r
in
g
with
a
m
o
b
ile
d
ev
i
ce
,
allo
win
g
ac
ce
s
s
co
n
tr
o
ls
to
n
o
t
d
e
p
en
d
s
o
lely
o
n
th
e
f
ac
ial
r
ec
o
g
n
itio
n
al
g
o
r
ith
m
.
B
ec
au
s
e
th
e
Flas
k
f
r
a
m
ewo
r
k
is
u
s
ed
,
it'
s
o
n
ly
p
o
s
s
ib
le
to
m
o
n
ito
r
th
e
c
am
er
a'
s
v
iew
wh
en
th
e
s
m
ar
tp
h
o
n
e
is
o
n
th
e
s
am
e
lo
ca
l
n
etwo
r
k
as
th
e
c
o
m
p
u
ter
r
u
n
n
in
g
th
e
d
etec
tio
n
m
o
d
el.
Ng
r
o
k
'
s
tu
n
n
elin
g
f
u
n
ctio
n
a
lity
allo
ws
ac
ce
s
s
f
r
o
m
ex
te
r
n
al
en
v
ir
o
n
m
en
ts
(
Fig
u
r
e
1
1
(
b
)
)
.
Fu
r
th
er
m
o
r
e
,
th
e
ex
ec
u
tio
n
tim
e
f
o
r
th
e
p
r
o
ce
s
s
es
was
o
b
tain
ed
d
u
r
in
g
th
e
1
0
ac
ce
s
s
test
s
.
T
h
e
s
y
s
tem
tak
es
0
.
8
7
an
d
0
.
6
6
s
ec
o
n
d
s
to
o
p
en
a
n
d
clo
s
e
th
e
lo
c
k
,
r
esp
ec
tiv
ely
.
L
ik
ewise,
th
e
lo
n
g
est
an
d
s
h
o
r
test
d
u
r
atio
n
s
with
th
e
l
o
ck
o
p
en
wer
e
5
.
7
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d
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(
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u
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e
1
1
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Valid
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n
o
f
th
e
c
o
n
tr
o
l p
r
o
g
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am
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f
u
n
ctio
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ality
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E
SP
3
2
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s
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(
a)
im
p
lem
en
ted
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h
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s
ical
cir
cu
it a
n
d
(
b
)
r
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m
o
te
m
o
n
ito
r
in
g
with
th
e
m
o
b
ile
ap
p
3
.
4
.
Securit
y
c
o
ns
idera
t
io
ns
a
nd
lim
it
a
t
io
ns
Similar
to
o
t
h
er
ac
ce
s
s
c
o
n
tr
o
l
s
y
s
tem
s
,
th
is
ar
ch
itectu
r
e
i
s
ex
p
o
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ed
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cy
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er
s
ec
u
r
ity
r
is
k
s
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ch
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n
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th
o
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ized
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s
s
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em
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te
m
o
n
ito
r
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g
i
n
ter
f
ac
es,
cr
ed
e
n
tial
th
ef
t,
an
d
d
e
n
ial
-
of
-
s
er
v
ice
attac
k
s
.
Fu
r
th
er
m
o
r
e
,
th
e
f
ac
ial
r
ec
o
g
n
itio
n
s
tag
e
i
s
v
u
ln
er
a
b
le
to
p
h
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to
s
p
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o
f
i
n
g
attac
k
s
b
ec
au
s
e
it
lac
k
s
a
liv
en
ess
d
etec
tio
n
Evaluation Warning : The document was created with Spire.PDF for Python.
I
n
t J Reco
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f
ig
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a
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le
&
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m
b
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Sy
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t
I
SS
N:
2089
-
4
8
6
4
S
ma
r
t lo
ck
s
ystem
w
i
th
in
tern
et
o
f th
in
g
s
u
s
in
g
f
a
cia
l reco
g
n
i
tio
n
fo
r
h
o
me
a
cc
ess
(
P
a
tr
ick
R
a
mo
s
)
753
m
ec
h
an
is
m
,
wh
ic
h
is
b
ey
o
n
d
th
e
s
co
p
e
o
f
t
h
is
p
r
o
ject.
W
h
ile
Ng
r
o
k
h
as
s
ec
u
r
e
tu
n
n
elin
g
ca
p
ab
ilit
ies,
a
co
m
p
r
eh
e
n
s
iv
e
cy
b
er
s
ec
u
r
it
y
ass
es
s
m
en
t
is
b
ey
o
n
d
th
e
s
co
p
e
o
f
th
is
r
esear
ch
.
T
h
er
ef
o
r
e
,
f
u
tu
r
e
wo
r
k
co
u
l
d
in
co
r
p
o
r
ate
liv
en
ess
d
etec
tio
n
,
en
cr
y
p
te
d
co
m
m
u
n
icatio
n
ch
an
n
els.
On
th
e
o
th
er
h
a
n
d
,
f
ac
ial
r
ec
o
g
n
itio
n
p
r
o
ce
s
s
in
g
is
cu
r
r
e
n
tly
p
er
f
o
r
m
ed
o
n
a
s
tan
d
ar
d
m
ic
r
o
co
m
p
u
ter
.
T
h
e
s
y
s
tem
ar
ch
itectu
r
e
s
h
o
ws
h
o
w
co
m
p
u
tatio
n
al
an
d
co
n
tr
o
l
task
s
ca
n
b
e
d
is
tr
ib
u
ted
ac
r
o
s
s
d
if
f
er
en
t
p
latf
o
r
m
s
.
T
h
is
ap
p
r
o
ac
h
is
s
u
itab
le
f
o
r
cu
r
r
en
t
I
o
T
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y
s
tem
s
,
wh
er
e
d
ev
ices
with
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ited
h
ar
d
war
e
r
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u
r
ce
s
wo
r
k
in
c
o
n
ju
n
ctio
n
with
o
th
e
r
n
o
d
es th
at
h
av
e
g
r
ea
ter
p
r
o
c
ess
in
g
ca
p
ac
ity
.
T
ab
le
4.
T
im
e
u
n
til th
e
lo
c
k
o
p
en
s
an
d
o
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g
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e
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n
d
s
A
t
t
e
m
p
t
n
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m
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e
r
Ti
me
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n
t
i
l
o
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i
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g
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c
o
n
d
s)
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p
e
n
i
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g
d
u
r
a
t
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o
n
(
se
c
o
n
d
s)
1
0
0
.
8
6
0
5
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5
2
2
0
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8
7
0
5
.
4
7
3
0
0
.
7
3
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5
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7
2
4
0
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8
0
0
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3
9
5
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6
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4
3
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6
6
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4
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8
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7
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9
9
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0
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6
6
0
5
.
7
1
10
0
0
.
8
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.
4
6
4.
CO
NCLU
SI
O
N
A
s
m
ar
t
lo
ck
s
y
s
tem
with
th
e
I
o
T
an
d
a
f
ac
ial
r
ec
o
g
n
itio
n
al
g
o
r
ith
m
was
im
p
lem
en
ted
f
o
r
h
o
m
e
ac
ce
s
s
u
s
in
g
a
f
ac
e
d
etec
tio
n
m
o
d
el
th
at
co
m
p
ar
es
f
ac
es
with
en
co
d
in
g
s
.
T
h
e
s
o
len
o
id
lo
ck
was
ef
f
icien
tly
co
n
tr
o
lle
d
with
an
ON
-
OFF
r
elay
m
o
d
u
le
an
d
an
E
SP
3
2
m
icr
o
co
n
tr
o
ller
,
s
im
u
latin
g
th
e
co
n
d
it
io
n
s
o
f
a
v
id
eo
s
u
r
v
eillan
ce
ca
m
er
a.
Fu
r
th
er
m
o
r
e
,
th
e
Flas
k
f
r
am
e
wo
r
k
was
u
s
ed
to
tr
an
s
m
it
th
e
alg
o
r
ith
m
'
s
r
esp
o
n
s
e
an
d
th
e
p
h
y
s
ical
lo
ck
'
s
s
tatu
s
.
T
o
d
esig
n
th
e
u
s
er
in
ter
f
ac
e,
th
e
m
o
b
ile
ap
p
lic
atio
n
was
in
teg
r
ated
with
r
em
o
te
ac
ce
s
s
v
ia
s
ec
u
r
e
tu
n
n
els
u
s
in
g
th
e
Ng
r
o
k
s
er
v
ic
e.
T
h
e
r
em
o
te
m
o
n
ito
r
in
g
f
u
n
c
tio
n
allo
ws
ac
ce
s
s
co
n
t
r
o
l
f
r
o
m
ex
ter
n
al
n
etwo
r
k
s
v
ia
a
s
ec
u
r
e
tu
n
n
el
ar
ch
itectu
r
e.
T
h
is
cr
ea
tes
an
ad
d
itio
n
al
l
ay
er
o
f
s
ec
u
r
ity
,
as
lo
ck
co
n
tr
o
l
is
co
m
p
lem
en
ted
b
y
h
u
m
a
n
v
er
if
icatio
n
an
d
in
ter
v
en
tio
n
.
T
h
e
alg
o
r
ith
m
p
e
r
f
o
r
m
ed
ad
eq
u
ately
f
o
r
id
e
n
tify
i
n
g
au
th
o
r
ize
d
u
s
er
s
.
Fu
r
th
er
m
o
r
e
,
th
e
F1
-
s
co
r
e
p
er
f
o
r
m
a
n
ce
p
ar
am
eter
s
h
o
we
d
a
v
alu
e
o
f
9
5
.
9
%,
s
im
ilar
to
th
e
v
alu
es
f
o
r
“a
cc
u
r
ac
y
”
(
9
6
.
2
%),
“p
r
ec
is
io
n
”
(
1
0
0
%),
an
d
“r
ec
all”
(
9
2
.
2
%).
T
h
e
m
o
b
ile
ap
p
in
ter
f
ac
e
v
ali
d
ated
th
e
r
em
o
te
lo
ck
-
f
o
r
cin
g
f
u
n
ctio
n
ality
.
Ad
d
itio
n
ally
,
th
e
im
ag
e
r
ef
r
esh
b
u
tto
n
was
im
p
lem
en
t
ed
to
ad
d
r
ess
p
o
ten
tial
co
n
n
e
ctiv
ity
is
s
u
es.
Fu
r
th
er
m
o
r
e,
th
e
f
ac
ial
r
ec
o
g
n
itio
n
alg
o
r
ith
m
was
u
n
ab
le
to
d
is
tin
g
u
is
h
a
p
h
o
to
g
r
a
p
h
f
r
o
m
a
r
ea
l
f
ac
e,
s
o
th
e
au
th
o
r
ized
u
s
er
o
f
th
e
m
o
b
ile
a
p
p
ca
n
r
estrict
ac
ce
s
s
f
o
r
a
s
p
ec
if
ic
p
e
r
io
d
o
f
tim
e.
Du
r
in
g
s
y
s
tem
v
alid
atio
n
,
a
li
m
itatio
n
was
id
en
tifie
d
r
elate
d
to
f
ac
ial
r
ec
o
g
n
itio
n
p
er
f
o
r
m
a
n
ce
,
wh
ich
is
r
ed
u
ce
d
b
y
lig
h
tin
g
c
o
n
tr
as
ts
an
d
f
ac
ial
o
cc
lu
s
io
n
ca
u
s
ed
b
y
th
e
HOG
tech
n
iq
u
e.
Fu
r
th
er
m
o
r
e,
th
e
cu
r
r
e
n
t
im
p
lem
en
tatio
n
d
o
es
n
o
t
in
te
g
r
ate
m
ec
h
a
n
is
m
s
to
p
r
e
v
en
t
ac
ce
s
s
u
s
in
g
p
h
o
t
o
g
r
ap
h
s
.
Fin
ally
,
th
e
v
alid
atio
n
was p
er
f
o
r
m
ed
u
n
d
er
co
n
tr
o
ll
ed
co
n
d
itio
n
s
with
a
lim
ited
n
u
m
b
er
o
f
u
s
er
s
.
T
h
e
m
ain
s
cien
tific
co
n
t
r
ib
u
ti
o
n
is
th
e
v
alid
atio
n
o
f
a
l
o
w
-
c
o
s
t,
in
teg
r
ated
ar
ch
itectu
r
e
with
b
io
m
et
r
ic
au
th
en
ticatio
n
,
I
o
T
-
b
ased
l
o
c
k
co
n
tr
o
l,
an
d
m
o
b
ile
m
o
n
ito
r
in
g
with
in
a
r
esid
en
tial
s
ec
u
r
ity
f
r
am
ew
o
r
k
.
Fu
r
th
er
m
o
r
e
,
in
s
tead
o
f
d
ev
elo
p
in
g
a
n
ew
r
ec
o
g
n
i
tio
n
alg
o
r
ith
m
,
th
e
f
ea
s
ib
ilit
y
o
f
in
teg
r
atin
g
tech
n
o
l
o
g
ies
in
t
o
a
s
in
g
le
in
teg
r
ated
s
ec
u
r
ity
s
o
lu
tio
n
is
d
em
o
n
s
tr
ated
.
T
h
e
cu
r
r
en
t
ar
ch
itectu
r
e
is
b
ased
o
n
th
e
u
s
e
o
f
a
co
n
v
en
tio
n
al
co
m
p
u
tin
g
s
y
s
tem
with
th
e
f
ac
ial
r
e
co
g
n
itio
n
s
tag
e
th
at
ca
n
b
e
ad
a
p
ted
t
o
r
ed
u
ce
d
h
ar
d
war
e
d
ev
ices,
allo
win
g
its
p
o
r
tab
ilit
y
an
d
f
u
tu
r
e
m
ig
r
atio
n
to
ed
g
e
AI
s
o
lu
tio
n
s
to
b
e
e
x
tr
ap
o
late
d
.
Fu
tu
r
e
r
esear
ch
co
u
l
d
in
teg
r
a
te
b
io
m
etr
ic
v
alid
atio
n
s
tag
es
to
p
r
ev
en
t
s
p
o
o
f
in
g
(
s
u
ch
a
s
liv
en
ess
d
etec
tio
n
an
d
b
lin
k
d
etec
tio
n
)
.
Ad
d
itio
n
ally
,
d
ee
p
lear
n
in
g
m
o
d
els
(
e.
g
.
,
T
e
n
s
o
r
Flo
w
L
ite
)
co
u
ld
b
e
ev
alu
ated
f
o
r
f
ac
ial
r
ec
o
g
n
itio
n
.
Mu
lti
m
o
d
al
a
u
th
en
ticatio
n
m
ec
h
a
n
i
s
m
s
in
teg
r
atin
g
R
FID
o
r
f
in
g
er
p
r
in
t
tec
h
n
o
l
o
g
ies
co
u
ld
also
b
e
im
p
lem
en
ted
to
en
h
an
ce
s
ec
u
r
ity
.
F
UNDING
I
NF
O
R
M
A
T
I
O
N
Au
th
o
r
s
s
tate
n
o
f
u
n
d
in
g
in
v
o
lv
ed
.
AUTHO
R
CO
NT
RI
B
UT
I
O
NS ST
A
T
E
M
E
N
T
T
h
is
jo
u
r
n
al
u
s
es
th
e
C
o
n
t
r
ib
u
to
r
R
o
les
T
a
x
o
n
o
m
y
(
C
R
ed
iT
)
to
r
ec
o
g
n
ize
in
d
iv
i
d
u
al
au
th
o
r
co
n
tr
ib
u
tio
n
s
,
r
ed
u
ce
au
th
o
r
s
h
ip
d
is
p
u
tes,
an
d
f
ac
ilit
ate
co
llab
o
r
atio
n
.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
0
8
9
-
4
8
6
4
I
n
t J Reco
n
f
ig
u
r
a
b
le
&
E
m
b
ed
d
ed
Sy
s
t
,
Vo
l.
15
,
No
.
3
,
No
v
em
b
er
2
0
2
6
:
746
-
755
754
Na
m
e
o
f
Aut
ho
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M
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Fo
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D
O
E
Vi
Su
P
Fu
Patr
ick
R
am
o
s
✓
✓
✓
✓
✓
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RAP
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Pa
tr
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m
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s
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c
a
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tac
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