Set
up-
R
OI En
c
odin
g
Overview
-
R
OI (
Reg
ion of In
te
r
est
) En
c
odin
g
fun
ct
ion
:
t
h
e
r
eg
ion
s
p
ec
ifi
e
d
by
a
R
OI i
s
e
n
c
od
e
d
t
o
t
r
a
n
s
mi
t
a
r
e
l
at
iv
e
l
y
g
ood im
age
c
omp
a
r
e
d
t
o o
t
h
e
r r
eg
ion
s.
[En
ab
l
e
]
c
h
ec
k
t
h
e
b
o
x
for
t
h
e
act
iv
at
ion
.
[
R
OI En
ab
l
e
c
h
ec
k
b
o
x
]
se
l
ect
ou
t
of "
R
OI#1
~
4"
.
Th
e
r
ecta
n
g
ul
a
r
b
o
x
in
w
hi
c
h
y
ou
ca
n
s
p
ec
if
y
t
h
e
r
eg
ion
a
pp
ea
r
s.
C
li
c
k
a
nd dr
ag
t
o
a
d
j
u
st
t
h
e
po
s
i
t
ion
a
nd
s
iz
e
of
t
h
e
r
eg
ion
.
R
OI # 2
~
4
act
iv
at
ion i
s
a
u
se
ful f
eat
ur
e
in NV
C
t
h
at
s
uppor
t
mul
t
ipl
e
r
eg
ion
s.
[
Se
n
s
i
t
ivi
ty
]
1
~
100 (Th
e
hi
g
h
e
r
t
h
e
v
a
lu
e
i
s
se
n
s
i
t
iv
e.
)
If
t
h
e
v
a
lu
e
i
s
set
t
o
be
ab
ou
t
50
,
y
ou
ca
n
see
t
h
e
diff
e
r
e
n
ce
in
t
h
e
eyes.
(Thou
g
h
t
h
e
vid
e
o
b
i
t
r
ate
i
s
set
t
o l
ess
t
h
a
n
t
h
e
r
ec
omm
e
nd
e
d
b
i
t
r
ate,
t
h
e
im
age
qu
a
li
ty
of
t
h
e
R
OI
d
es
i
g
n
ate
d r
eg
ion
ca
n
be
m
a
in
ta
in
e
d
.
)
[OK
b
u
tt
on]
c
li
c
k
t
hi
s
b
u
tt
on
t
o
a
ppl
y
t
h
e
c
h
a
n
ge
d
sett
in
g
v
a
lu
es.
Sett
in
g
a
n
exa
mpl
e
-
C
ondi
t
ion
:
1920
x
10
8
0 r
es
olu
t
ion
e
n
c
odin
g,
1
.
5
Mb
p
s
n
etw
ork
ba
nd
w
id
t
h
-
Sett
in
g:
sett
in
g
t
h
e
R
OI
t
o 1/4 of
t
h
e
e
n
t
ir
e
im
age
a
nd
t
h
e
se
n
s
i
t
ivi
ty
t
o
a
v
a
lu
e
ou
t
of 40
~
60
.
- Eff
ect:
Th
e
qu
a
li
ty
of
t
h
e
im
age
set
t
o
t
h
e
R
OI i
s
s
imil
a
r
t
o
t
h
e
im
age
t
r
a
n
s
f
e
rr
e
d
by
t
h
e
t
r
a
n
s
f
e
r r
ate
"4
Mb
p
s
"
(
t
h
e
d
e
f
a
ul
t
v
a
lu
e
of 1920
x
10
8
0 r
es
olu
t
ion)
.
You
ca
n
a
l
s
o moni
t
or
t
h
e
c
ir
c
um
sta
n
ces
for
t
h
e
non-
R
OI p
a
r
t.
