Agronomy,
Journal Year:
2024,
Volume and Issue:
14(12), P. 2986 - 2986
Published: Dec. 15, 2024
Accurate
mapping
of
tea
plantations
is
crucial
for
agricultural
management
and
economic
planning,
yet
it
poses
a
significant
challenge
due
to
the
complex
variable
nature
cultivation
landscapes.
This
study
presents
high-precision
approach
in
Anji
County,
Zhejiang
Province,
China,
utilizing
multi-source
remote
sensing
data
advanced
deep
learning
models.
We
employed
combination
Sentinel-2
optical
imagery,
Sentinel-1
synthetic
aperture
radar
digital
elevation
models
capture
rich
spatial,
spectral,
temporal
characteristics
plantations.
Three
models,
namely
U-Net,
SE-UNet,
Swin-UNet,
were
constructed
trained
semantic
segmentation
Cross-validation
point-based
accuracy
assessment
methods
used
evaluate
performance
The
results
demonstrated
that
Swin-UNet
model,
transformer-based
capturing
long-range
dependencies
global
context
superior
feature
extraction,
outperformed
others,
achieving
an
overall
0.993
F1-score
0.977
when
using
multi-temporal
data.
integration
with
slightly
improved
classification
accuracy,
particularly
areas
affected
by
cloud
cover,
highlighting
complementary
imagery
all-weather
monitoring.
also
analyzed
influence
terrain
factors,
such
as
elevation,
slope,
aspect,
on
plantation
mapping.
It
was
found
at
higher
altitudes
or
north-facing
slopes
exhibited
improves
increasing
likely
simpler
land
cover
types
tea’s
preference
shade.
findings
this
research
not
only
provide
valuable
insights
into
precision
but
contribute
broader
application
Alexandria Engineering Journal,
Journal Year:
2024,
Volume and Issue:
102, P. 108 - 118
Published: June 5, 2024
Detecting
the
shoreline
is
an
important
task
for
its
potential
use.
The
allows
cropping
of
image
into
two
separate
areas
that
present
water
area
and
shore.
It
particularly
interesting
because
images
can
be
used
to
analyze
pollution,
land
development,
or
even
waterfront
erosion.
Unfortunately,
automatic
detection
a
complex
problem
due
numerous
physical
atmospheric
issues.
In
this
paper,
we
solution
based
on
U-net
convolutional
network,
trained
dedicated
database.
database
automatically
generated
by
applying
processing
techniques
heuristic
algorithm.
Using
heuristics,
optimal
values
mask
generation
parameters
are
determined.
Consequently,
automation
generating
set
masks
analyzing
boundary
line
efficiency
segmentation
network.
proposed
analysis
coastline,
where
obstacles
occurring
waves
quickly
detected.
To
evaluate
solution,
tests
were
carried
out
in
real
conditions,
which
showed
effectiveness
model.
addition,
publicly
available
database,
allowed
obtaining
higher
results
than
existing
methods.
Fine-tuning
techniques
allow
the
use
of
weights
from
pre-trained
networks
in
other
models
across
different
contexts,
potentially
improving
training
performance
as
it
generally
requires
fewer
computational
resources
and
less
data.
Finetuning
has
become
more
widespread
natural
domain
(RGB)
with
availability
model
ImageNet
database.
However,
same
are
not
readily
available
for
remote
sensing
domain,
such
mangrove
identification.
Both
nationally
state
Paraná,
there
few
studies
employing
deep
learning
segmentation.
Developing
using
transfer
can
help
establish
automated
monitoring
systems.
Thus,
this
study
evaluated
fine-tuning
segmentation
Paraná
U-Net
encoders
sensing,
domain.
The
dataset
was
generated
bands
Sentinel-2A
satellite
annotations
MapBiomas
project
maps.
fine-tuned
discussed
accurately
identified
mangroves
all
achieving
accuracies
above
95.1%
F-scores
greater
than
92.6%.
Agronomy,
Journal Year:
2024,
Volume and Issue:
14(12), P. 2986 - 2986
Published: Dec. 15, 2024
Accurate
mapping
of
tea
plantations
is
crucial
for
agricultural
management
and
economic
planning,
yet
it
poses
a
significant
challenge
due
to
the
complex
variable
nature
cultivation
landscapes.
This
study
presents
high-precision
approach
in
Anji
County,
Zhejiang
Province,
China,
utilizing
multi-source
remote
sensing
data
advanced
deep
learning
models.
We
employed
combination
Sentinel-2
optical
imagery,
Sentinel-1
synthetic
aperture
radar
digital
elevation
models
capture
rich
spatial,
spectral,
temporal
characteristics
plantations.
Three
models,
namely
U-Net,
SE-UNet,
Swin-UNet,
were
constructed
trained
semantic
segmentation
Cross-validation
point-based
accuracy
assessment
methods
used
evaluate
performance
The
results
demonstrated
that
Swin-UNet
model,
transformer-based
capturing
long-range
dependencies
global
context
superior
feature
extraction,
outperformed
others,
achieving
an
overall
0.993
F1-score
0.977
when
using
multi-temporal
data.
integration
with
slightly
improved
classification
accuracy,
particularly
areas
affected
by
cloud
cover,
highlighting
complementary
imagery
all-weather
monitoring.
also
analyzed
influence
terrain
factors,
such
as
elevation,
slope,
aspect,
on
plantation
mapping.
It
was
found
at
higher
altitudes
or
north-facing
slopes
exhibited
improves
increasing
likely
simpler
land
cover
types
tea’s
preference
shade.
findings
this
research
not
only
provide
valuable
insights
into
precision
but
contribute
broader
application