Biomedical Engineering Reference
In-Depth Information
Y
U
(
.
)
Upper output sub-image
N
L
Number of pixel in lower sub-image
P
L
(
.
)
PDF of lower sub-image
P
U
(
.
)
PDF of upper sub-image
g
(||∇
I
||)
Diffusion strength function
∇
l
Image gradient
div(∇l)
(∇
l
)
Divergent operator
c
(
q
)
Diffusion coefficient function of SRAD
q
0
(
t
)
Coefficient of variation at the time, t
C
j
(
T
)
Cluster center of jth cluster at Tth iteration
σ
Tolerant error value
D
(
T
)
ji
Euclidean distance between jth cluster and ith element at Tth iteration
HOM
(
.
)
Homogenous function
P
(
i
,
j
)
Probability a group of spatial related pixel intensity
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