Frontiers in Marine Science,
Journal Year:
2024,
Volume and Issue:
11
Published: Oct. 10, 2024
Underwater
images
typically
exhibit
low
quality
due
to
complex
imaging
environments,
which
impede
the
development
of
Space-Air-Ground-Sea
Integrated
Network
(SAGSIN).
Existing
physical
models
often
ignore
light
absorption
and
attenuation
properties
water,
making
them
incapable
resolving
details
resulting
in
contrast.
To
address
this
issue,
we
propose
attenuated
incident
optical
model
combine
it
with
a
background
segmentation
technique
for
underwater
image
restoration.
Specifically,
first
utilize
features
distinguish
foreground
region
from
region.
Subsequently,
introduce
layer
improve
account
effects
non-uniform
light.
Afterward,
employ
new
maximum
reflection
prior
estimation
achieve
restoration
Meanwhile,
contrast
is
enhanced
by
stretching
saturation
brightness
components.
Extensive
experiments
conducted
on
four
datasets,
using
both
classical
state-of-the-art
(SOTA)
algorithms,
demonstrate
that
our
method
not
only
successfully
restores
textures
but
also
beneficial
processing
under
lighting
conditions.
IEEE Transactions on Geoscience and Remote Sensing,
Journal Year:
2025,
Volume and Issue:
63, P. 1 - 18
Published: Jan. 1, 2025
Timely
and
accurate
representation
of
sea
surface
dynamic
fields
is
crucial
for
oil
spill
drift
prediction.
Numerically
forecasted
are
available
in
a
timely
manner,
but
their
accuracy
limited.
Conversely,
reanalysis
offer
superior
suffer
from
time
delays.
To
enhance
the
performance
prediction,
we
propose
deep
learning-based
approach
to
correcting
numerically
fields,
aligning
them
more
closely
with
fields.
Our
introduces
an
adversarial
temporal
convolutional
network
(ATCN)
framework,
consisting
(TCN)-based
corrector
discriminator.
The
TCN
can
characterize
field
sequences
both
spatially
temporally.
In
this
scenario,
processes
outputs
corrected
that
approximate
Adversarial
training
discriminator
further
refines
corrector.
This
enhances
prediction
using
We
also
provide
dataset
drifts
Symphony
Sanchi
accidents,
including
related
data
remote
sensing
data,
establishing
baseline
evaluating
Experiments
on
validate
ATCN
framework's
effectiveness
enhancing
Sustainability,
Journal Year:
2024,
Volume and Issue:
16(20), P. 8889 - 8889
Published: Oct. 14, 2024
As
the
global
climate
changes,
there
is
an
increasing
focus
on
oceans
and
their
protection
exploitation.
However,
exploration
of
necessitates
construction
marine
equipment,
siting
such
equipment
has
become
a
significant
challenge.
With
ongoing
development
computers,
machine
learning
using
remote
sensing
data
proven
to
be
effective
solution
this
problem.
This
paper
reviews
history
technology,
introduces
conditions
required
for
site
selection
through
measurement
analysis,
uses
cluster
analysis
methods
identify
areas
as
research
hotspot
ocean
sensing.
The
aims
integrate
into
Through
review
discussion
article,
limitations
shortcomings
current
stage
are
identified,
relevant
proposals
put
forward.
PeerJ Computer Science,
Journal Year:
2025,
Volume and Issue:
11, P. e2614 - e2614
Published: Jan. 10, 2025
In
intertidal
mudflat
culture
(IMC),
the
fishing
efficiency
and
degree
of
damage
to
nature
have
always
been
a
pair
irreconcilable
contradictions.
To
improve
razor
clam
at
same
time
reduce
natural
environment,
in
this
study,
burrows
dataset
is
established,
an
intelligent
method
proposed,
which
realizes
accurate
identification
counting
by
introducing
object
detection
technology
into
activity.
A
model
called
culture-You
Only
Look
Once
(IMC-YOLO)
proposed
study
making
improvements
upon
You
version
8
(YOLOv8).
firstly,
end
backbone
network,
Iterative
Attention-based
Intrascale
Feature
Interaction
(IAIFI)
module
was
designed
adopted
model's
focus
on
advanced
features.
Subsequently,
effectiveness
detecting
difficult
targets
such
as
with
small
sizes,
head
network
refactored.
Then,
FasterNet
Block
used
replace
Bottleneck,
achieves
more
effective
feature
extraction
while
balancing
accuracy
size.
Finally,
Three
Branch
Convolution
Attention
Mechanism
(TBCAM)
enables
specific
region
interest
accurately.
After
testing,
IMC-YOLO
achieved
mAP50,
mAP50:95,
F1best
0.963,
0.636,
0.918,
respectively,
representing
2.2%,
3.5%,
2.4%
over
baseline
model.
Comparison
other
mainstream
models
confirmed
that
strikes
good
balance
between
numbers
parameters.
Frontiers in Marine Science,
Journal Year:
2025,
Volume and Issue:
12
Published: Feb. 11, 2025
Introduction
The
advancement
of
Underwater
Human-Robot
Interaction
technology
has
significantly
driven
marine
exploration,
conservation,
and
resource
utilization.
However,
challenges
persist
due
to
the
limitations
underwater
robots
equipped
with
basic
cameras,
which
struggle
handle
complex
environments.
This
leads
blurry
images,
severely
hindering
performance
automated
systems.
Methods
We
propose
MUFFNet,
an
image
enhancement
network
leveraging
multi-scale
frequency
analysis
address
challenge.
introduces
a
frequency-domain-based
convolutional
attention
mechanism
extract
spatial
information
effectively.
A
Multi-Scale
Enhancement
Prior
algorithm
enhances
high-frequency
low-frequency
features
while
Information
Flow
module
mitigates
stratification
blockage.
Joint
Loss
framework
facilitates
dynamic
optimization.
Results
Experimental
results
demonstrate
that
MUFFNet
outperforms
existing
state-of-the-art
models
consuming
fewer
computational
resources
aligning
enhanced
images
more
closely
human
visual
perception.
Discussion
generated
by
exhibit
better
alignment
perception,
making
it
promising
solution
for
improving
robotic
vision
Remote Sensing,
Journal Year:
2024,
Volume and Issue:
16(16), P. 3021 - 3021
Published: Aug. 17, 2024
Underwater
images,
as
a
crucial
medium
for
storing
ocean
information
in
underwater
sensors,
play
vital
role
various
tasks.
However,
they
are
prone
to
distortion
due
the
imaging
environment,
which
leads
decline
visual
quality,
is
an
urgent
issue
marine
vision
systems
address.
Therefore,
it
necessary
develop
image
enhancement
(UIE)
and
corresponding
quality
assessment
methods.
At
present,
most
(UIQA)
methods
primarily
rely
on
extracting
handcrafted
features
that
characterize
degradation
attributes,
struggle
measure
complex
mixed
distortions
often
exhibit
discrepancies
with
human
perception
practical
applications.
Furthermore,
current
UIQA
lack
consideration
of
perspective
enhanced
effects.
To
this
end,
paper
employs
luminance
saliency
priors
critical
first
time
effect
global
local
achieved
by
UIE
algorithms,
named
JLSAU.
The
proposed
JLSAU
built
upon
overall
pyramid-structured
backbone,
supplemented
Luminance
Feature
Extraction
Module
(LFEM)
Saliency
Weight
Learning
(SWLM),
aim
at
obtaining
multiple
scales.
supplement
aims
perceive
visually
sensitive
luminance,
including
histogram
statistical
grayscale
positional
information.
reflects
variation
both
spatial
channel
domains.
Finally,
effectively
model
relationship
among
different
levels
contained
multi-scale
features,
Attention
Fusion
(AFFM)
proposed.
Experimental
results
public
UIQE
UWIQA
datasets
demonstrate
outperforms
existing
state-of-the-art