Geophysics,
Journal Year:
2024,
Volume and Issue:
89(5), P. V415 - V436
Published: May 29, 2024
Distributed
acoustic
sensing
(DAS)
is
an
emerging
data
acquisition
technique
known
for
its
high
density,
cost
effectiveness,
and
environmental
friendliness,
making
it
a
technology
with
significant
future
application
potential
in
many
fields.
However,
DAS
signals
are
often
contaminated
by
various
types
of
noise,
such
as
high-frequency,
high-amplitude
erratic,
horizontal
their
processing
challenging.
Therefore,
crucial
to
leverage
the
physical
characteristics
these
diverse
noise
effectively
attenuate
them.
In
this
work,
we
develop
SelfMixed,
novel
self-supervised
learning
method
mixed
suppression
data.
We
fully
exploit
different
introduce
characteristic-based
training
strategy.
Specifically,
use
[Formula:
see
text]
norm
characterize
random
erratic
smoothness
vertical
nonsmoothness
noise.
addition,
blind-spot-based
strategy
denoising,
relying
solely
on
observed
noisy
To
more
also
Fourier
transform-based
parameterization
method.
By
combining
deep
priors
our
attenuates
complex
field
Extensive
experiments
synthetic
from
geographic
scenarios
validate
superiority
SelfMixed
over
seven
state-of-the-art
denoising
approaches.
2022 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR),
Journal Year:
2023,
Volume and Issue:
unknown
Published: June 1, 2023
Deep
image
prior
(DIP)
has
shown
great
promise
in
tackling
a
variety
of
restoration
(IR)
and
general
visual
inverse
problems,
needing
no
training
data.
However,
the
resulting
optimization
process
is
often
very
slow,
inevitably
hindering
DIP's
practical
usage
for
time-sensitive
scenarios.
In
this
paper,
we
focus
on
IR,
propose
two
crucial
modifications
to
DIP
that
help
achieve
substantial
speedup:
1)
optimizing
seed
while
freezing
randomly-initialized
network
weights,
2)
reducing
depth.
addition,
reintroduce
explicit
priors,
such
as
sparse
gradient
prior-encoded
by
total-variation
regularization,
preserve
peak
performance.
We
evaluate
proposed
method
three
IR
tasks,
including
denoising,
super-resolution,
inpainting,
against
original
variants,
well
competing
metaDIP
uses
meta-learning
learn
good
initializers
with
extra
Our
clear
winner
obtaining
competitive
quality
minimal
amount
time.
code
available
at
https://github.com/sun-umn/Deep-Random-Projector.
IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems,
Journal Year:
2024,
Volume and Issue:
43(10), P. 3171 - 3183
Published: April 9, 2024
Impedance
matching
circuits
(IMCs)
are
crucial
modules
in
radio
frequency
(RF)
front-end
components,
devices,
and
systems,
affecting
the
performance
of
whole
systems.
However,
design
process
IMCs
has
to
require
intense
manual
interventions
with
high
computational
costs.
To
alleviate
this
problem,
a
novel
scheme
for
inversely
designing
is
presented
work
based
on
neural
network
technology.
Such
IMC
inverse
framework
consists
two
mapping-based
deep
networks
(DNNs).
The
first
one
an
untrained
generative
adversarial
(GAN)
that
maps
from
requirements
regularized
S-parameters
curves.
second
inversion
target
impedance
designed
circuit
parameters.
With
cascaded
GAN
network,
efficient
method
IMC-based
filtering
antenna
introduced,
which
takes
about
1/17
time
compared
traditional
EM-based
optimization
methods.
Further,
three
power
amplifiers
(PAs)
multiple
inversely-designed
proposed
framework.
In
experimental
demonstration,
elaborate
prototypes
fabricated
measured,
where
measured
results
fully
satisfy
demand
performance.
IEEE Transactions on Image Processing,
Journal Year:
2024,
Volume and Issue:
33, P. 3950 - 3963
Published: Jan. 1, 2024
Multi-focus
image
fusion
can
fuse
the
clear
parts
of
two
or
more
source
images
captured
at
same
scene
with
different
focal
lengths
into
an
all-in-focus
image.
On
one
hand,
previous
supervised
learning-based
multi-focus
methods
relying
on
synthetic
datasets
have
a
distribution
shift
real
scenarios.
other
unsupervised
well
adapt
to
observed
but
lack
general
knowledge
defocus
blur
that
be
learned
from
paired
data.
To
avoid
problems
existing
methods,
this
paper
presents
novel
model
by
considering
both
brought
pretrained
backbone
and
extrinsic
priors
optimized
specific
testing
sample
improve
performance
fusion.
specific,
Incremental
Network
Prior
Adaptation
(INPA)
framework
is
proposed
incrementally
integrate
features
extracted
strong
baselines
tiny
prior
network
(6.9%
parameters
network)
boost
for
test
samples.
We
evaluate
our
method
real-world
public
(Lytro,
MFI-WHU,
Real-MFF)
show
outperforms
learning
based
methods.
IEEE Transactions on Intelligent Vehicles,
Journal Year:
2023,
Volume and Issue:
9(1), P. 199 - 215
Published: Nov. 9, 2023
In
this
paper,
we
propose
a
novel
federated
deep
unrolling
method
for
increasing
the
accuracy
of
Lidar
Super
resolution.
The
proposed
framework
not
only
offers
notable
improvements
in
Lidar-based
SLAM
methodologies
but
also
provides
solution
to
significant
cost
associated
with
high-resolution
sensors.
Particularly,
our
can
be
adopted
by
number
vehicles
coordinated
server
towards
learning
regularizer
-
neural
network
capturing
dependencies
data.
To
tackle
adaptive
optimization
problem
effectively,
initially
framework,
converting
into
well-justified
architecture.
learnable
parameters
architecture
are
directly
derived
from
problem,
thus
resulting
an
explainable
Further,
extend
capabilities
technique
incorporating
strategy.
Our
model
employs
innovative
Adapt-then-Combine
strategy,
where
each
vehicle
optimizes
its
and,
subsequently,
their
regularizers
combined
formulate
robust
global
regularizer,
equipped
handle
diverse
environmental
conditions.
Through
extensive
numerical
evaluations
on
real-world
based
applications,
demonstrates
superior
performance
along
reduction
trainable
parameters,
99.75%
fewer
compared
state
art
lidar
super-resolution
networks.
Essentially,
study
is
first
initiative
combine
learning,
showcasing
efficient,
and
data-secure
approach
automotive
applications.
source
code
found
at:
https://github.com/alexandrosgk/Federated-Deep-Unrolling-Lidar-Super-resolution-SLAM.git
.
Optics Express,
Journal Year:
2024,
Volume and Issue:
32(9), P. 16333 - 16333
Published: April 3, 2024
Compressed
ultrafast
photography
(CUP)
is
a
computational
imaging
technology
capable
of
capturing
transient
scenes
in
picosecond
scale
with
sequence
depth
hundreds
frames.
Since
the
inverse
problem
CUP
an
ill-posed
problem,
it
challenging
to
further
improve
reconstruction
quality
under
condition
high
noise
level
and
compression
ratio.
In
addition,
there
are
many
articles
adding
external
charge-coupled
device
(CCD)
camera
system
form
time-unsheared
view
because
added
constraint
can
images.
However,
since
images
collected
by
different
cameras,
slight
affine
transformation
may
have
great
impacts
on
quality.
Here,
we
propose
algorithm
that
combines
image
unsupervised
neural
networks.
Image
registration
network
also
introduced
into
framework
learn
parameters
input
The
proposed
effectively
utilizes
implicit
prior
as
well
extra
hardware
information
brought
view.
Combined
network,
this
joint
learning
model
enables
our
reconstructed
without
training
datasets.
simulation
experiment
results
demonstrate
application
prospect
event
capture.