Salt and pepper noise removal method based on stationary Framelet transform with non‐convex sparsity regularization
IET Image Processing,
Год журнала:
2022,
Номер
16(7), С. 1846 - 1865
Опубликована: Фев. 17, 2022
Abstract
Salt
and
pepper
noise
occurs
randomly
causes
image
degradation.
Numerous
denoising
methods
have
been
proposed
to
suppress
this
noise.
However,
existing
two
main
limitations.
First,
characteristics,
such
as
location
information
sparsity,
are
often
described
inaccurately
or
even
ignored.
Second,
many
separate
the
contaminated
into
a
recovered
part,
leading
recovery
of
an
with
unsatisfactory
smooth
detailed
parts.
In
study,
authors
introduce
detection
strategy
determine
position
employ
non‐convex
sparsity
regularization
depicted
by
quasi‐norm
describe
noise,
thereby
addressing
first
limitation.
We
adopt
morphological
component
analysis
framework
stationary
Framelet
transform
decompose
processed
cartoon,
texture,
parts
resolve
second
Then,
model
is
applied
using
alternating
direction
method
multipliers
(ADMM).
Finally,
experiments
conducted
verify
compare
it
some
current
state‐of‐the‐art
methods.
The
experimental
results
show
that
can
remove
salt
while
preserving
details
outperforming
Язык: Английский
An L0 regularized cartoon-texture decomposition model for restoring images corrupted by blur and impulse noise
Signal Processing Image Communication,
Год журнала:
2019,
Номер
82, С. 115762 - 115762
Опубликована: Дек. 27, 2019
Язык: Английский
Robust sparse time‐frequency analysis for data missing scenarios
IET Signal Processing,
Год журнала:
2023,
Номер
17(1)
Опубликована: Янв. 1, 2023
Sparse
time-frequency
analysis
(STFA)
can
precisely
achieve
the
spectrum
of
local
truncated
signal.
However,
when
signal
is
disturbed
by
unexpected
data
loss,
STFA
cannot
distinguish
effective
signals
from
missing
interferences.
To
address
this
issue
and
establish
a
robust
model
for
(TFA)
in
loss
scenarios,
stationary
Framelet
transform-based
morphological
component
introduced
STFA.
In
proposed
model,
processed
regarded
as
sum
cartoon,
texture
data-missing
parts.
The
cartoon
parts
are
reconstructed
independently
taking
advantage
transform.
Then,
forward-backwards
splitting
method
employed
to
split
into
recovery
imaging
stages.
two
stages
then
solved
separately
using
alternating
direction
multipliers
(ADMM).
Finally,
several
experiments
conducted
show
performance
under
different
levels,
it
compared
with
some
existing
state-of-the-art
methods.
results
indicate
that
outperforms
methods
obtaining
sparse
missing.
has
potential
value
TFA
scenarios
where
easily
lost.
Язык: Английский
An L0-regularized global anisotropic gradient prior for single-image de-raining
Applied Mathematical Modelling,
Год журнала:
2021,
Номер
98, С. 628 - 651
Опубликована: Июнь 18, 2021
Язык: Английский
Image Tone Mapping by Employing Anisotropic Total Variation and Two-Directional Gradient Prior
Circuits Systems and Signal Processing,
Год журнала:
2022,
Номер
41(9), С. 5026 - 5048
Опубликована: Апрель 8, 2022
Язык: Английский
Single image deraining using local rain distribution map
Multimedia Tools and Applications,
Год журнала:
2023,
Номер
83(17), С. 50349 - 50380
Опубликована: Ноя. 6, 2023
Язык: Английский
MRI Reconstruction using Minimax-Concave Total Variation Regularization based on p-norm
2022 IEEE International Conference on Systems, Man, and Cybernetics (SMC),
Год журнала:
2022,
Номер
unknown, С. 1206 - 1212
Опубликована: Окт. 9, 2022
Magnetic
resonance
imaging
(MRI)
reconstruction
model
based
on
total
variation
(TV)
regularization
can
solve
some
problems,
e.g.,
incomplete
reconstruction,
blurred
imaging,
and
denoising.
However,
it
has
problems
such
as
sensitivity
to
outliers,
poor
ability
induce
the
sparsity
of
gradient
domain
MR
image.
In
this
paper,
minimax-concave
$L_{p}-$norm
(MCTV-L
p
)
is
proposed
overcome
these
drawbacks.
Specifically,
TV-L
constructed
using
exponent
${p}(0\lt{p}\lt
1)$,
which
defined
gradient.
Then
combined
with
penalty
construct
MCTV-L
.
Finally,
sparse
(MCTV-SRM)
proposed,
where
objective
function
formulated
sum
data-fitting
term
$L_{2}-$norm.
Moreover,
an
optimization
algorithm
alternating
direction
method
multipliers
(ADMM)
given
related
iteratively.
Results
different
datasets
experimental
settings
show
that
better
adapted
MRI
relative
error
PSNR
are
significantly
improved
than
several
typical
methods,
while
reconstruct
images
clear
details
textures.
Язык: Английский
Exponential-Ant Cuckoo Search Optimization for image deblurring with spinal cord images based on kernel estimation
S. Shanmuga Priya,
S. Letitia
Signal Image and Video Processing,
Год журнала:
2021,
Номер
16(2), С. 339 - 347
Опубликована: Июнь 22, 2021
Язык: Английский
Salt and pepper noise removal method based on stationary Framelet transform with non-convex sparsity regularization
arXiv (Cornell University),
Год журнала:
2021,
Номер
unknown
Опубликована: Янв. 1, 2021
Salt
and
pepper
noise
removal
is
a
common
inverse
problem
in
image
processing.
Traditional
denoising
methods
have
two
limitations.
First,
characteristics
are
often
not
described
accurately.
For
example,
the
location
information
ignored
sparsity
of
salt
by
L1
norm,
which
cannot
illustrate
sparse
variables
clearly.
Second,
conventional
separate
contaminated
into
recovered
part,
thus
resulting
recovering
an
with
unsatisfied
smooth
parts
detail
parts.
In
this
study,
we
introduce
detection
strategy
to
determine
position
noise,
non-convex
regularization
depicted
Lp
quasi-norm
employed
describe
thereby
addressing
first
limitation.
The
morphological
component
analysis
framework
stationary
Framelet
transform
adopted
decompose
processed
cartoon,
texture,
resolve
second
Then,
alternating
direction
method
multipliers
(ADMM)
solve
proposed
model.
Finally,
experiments
conducted
verify
compare
it
some
current
state-of-the-art
methods.
experimental
results
show
that
can
remove
while
preserving
details
image.
Язык: Английский