Sensors,
Год журнала:
2024,
Номер
24(23), С. 7710 - 7710
Опубликована: Дек. 2, 2024
This
work
aims
to
develop
a
novel
convolutional
neural
network
(CNN)
named
ResNet50*
detect
various
gastrointestinal
diseases
using
new
ResNet50*-based
deep
feature
engineering
model
with
endoscopy
images.
The
novelty
of
this
is
the
development
ResNet50*,
variant
ResNet
model,
featuring
convolution-based
residual
blocks
and
pooling-based
attention
mechanism
similar
PoolFormer.
Using
image
dataset
was
trained,
an
explainable
(DFE)
developed.
DFE
comprises
four
primary
stages:
(i)
extraction,
(ii)
iterative
selection,
(iii)
classification
shallow
classifiers,
(iv)
information
fusion.
self-organizing,
producing
14
different
outcomes
(8
classifier-specific
6
voted)
selecting
most
effective
result
as
final
decision.
During
heatmaps
are
identified
gradient-weighted
class
activation
mapping
(Grad-CAM)
features
derived
from
these
regions
via
global
average
pooling
layer
pretrained
ResNet50*.
Four
selectors
employed
in
selection
stage
obtain
distinct
vectors.
classifiers
k-nearest
neighbors
(kNN)
support
vector
machine
(SVM)
used
produce
specific
outcomes.
Iterative
majority
voting
voted
top
determined
by
greedy
algorithm
based
on
accuracy.
presented
trained
augmented
version
Kvasir
dataset,
its
performance
tested
Kvasir,
2,
wireless
capsule
(WCE)
curated
colon
disease
datasets.
Our
proposed
demonstrated
accuracy
more
than
92%
for
all
three
datasets
remarkable
99.13%
WCE
dataset.
These
findings
affirm
superior
ability
confirm
generalizability
developed
architecture,
showing
consistent
across
Electronics,
Год журнала:
2023,
Номер
12(7), С. 1557 - 1557
Опубликована: Март 26, 2023
Gastrointestinal
(GI)
tract
diseases
are
on
the
rise
in
world.
These
can
have
fatal
consequences
if
not
diagnosed
initial
stages.
WCE
(wireless
capsule
endoscopy)
is
advanced
technology
used
to
inspect
gastrointestinal
such
as
ulcerative-colitis,
polyps,
esophagitis,
and
ulcers.
produces
thousands
of
frames
for
a
single
patient’s
procedure
which
manual
examination
tiresome,
time-consuming,
prone
error;
therefore,
an
automated
needed.
images
suffer
from
low
contrast
increases
inter-class
intra-class
similarity
reduces
anticipated
performance.
In
this
paper,
efficient
GI
disease
classification
technique
proposed
utilizes
optimized
brightness-controlled
contrast-enhancement
method
improve
images.
The
applies
genetic
algorithm
(GA)
adjusting
values
brightness
within
image
by
modifying
fitness
function,
improves
overall
quality
This
improvement
reported
using
qualitative
measures,
peak
signal
noise
ratio
(PSNR),
mean
square
error
(MSE),
visual
information
fidelity
(VIF),
index
(SI),
(IQI).
As
second
step,
data
augmentation
performed
applying
multiple
transformations,
then,
transfer
learning
fine-tune
modified
pre-trained
model
Finally,
disease,
extracted
features
passed
through
machine-learning
classifiers.
To
show
efficacy
performance,
results
original
dataset
well
contrast-enhanced
dataset.
15.26%
accuracy,
13.3%
precision,
16.77%
recall
rate,
15.18%
F-measure.
comparison
with
existing
techniques
shows
that
framework
outperforms
state-of-the-art
techniques.
Diagnostics,
Год журнала:
2023,
Номер
13(4), С. 720 - 720
Опубликована: Фев. 14, 2023
Endoscopic
procedures
for
diagnosing
gastrointestinal
tract
findings
depend
on
specialist
experience
and
inter-observer
variability.
This
variability
can
cause
minor
lesions
to
be
missed
prevent
early
diagnosis.
In
this
study,
deep
learning-based
hybrid
stacking
ensemble
modeling
has
been
proposed
detecting
classifying
system
findings,
aiming
at
diagnosis
with
high
accuracy
sensitive
measurements
saving
workload
help
the
objectivity
in
endoscopic
first
level
of
bi-level
approach,
predictions
are
obtained
by
applying
5-fold
cross-validation
three
new
CNN
models.
A
machine
learning
classifier
selected
second
is
trained
according
predictions,
final
classification
result
reached.
The
performances
models
were
compared
models,
McNemar’s
statistical
test
was
applied
support
results.
According
experimental
results,
performed
a
significant
difference
98.42%
ACC
98.19%
MCC
KvasirV2
dataset
98.53%
98.39%
HyperKvasir
dataset.
study
offer
learning-oriented
approach
that
efficiently
evaluates
features
provides
objective
reliable
results
testing
state-of-the-art
studies
subject.
improves
performance
outperforms
literature.
CAAI Transactions on Intelligence Technology,
Год журнала:
2023,
Номер
unknown
Опубликована: Июнь 11, 2023
Abstract
Diseases
of
the
Gastrointestinal
(GI)
tract
significantly
affect
quality
human
life
and
have
a
high
fatality
rate.
Accurate
diagnosis
GI
diseases
plays
pivotal
role
in
healthcare
systems.
However,
processing
large
amounts
medical
image
data
can
be
challenging
for
radiologists
other
professionals,
increasing
risk
inaccurate
assessments.
Computer‐aided
Diagnosis
systems
provide
help
to
doctors
rapid
accurate
diagnosis,
thus
resulting
saving
lives.
Recently,
many
techniques
are
found
literature
that
uses
deep
Convolutional
Neural
Network
(CNN)
models
disease
classification.
they
limitations
their
ability
detect
deformation‐invariant
features
lack
robustness.
The
diseased
region
is
highlighted,
using
attention‐based
generation
superimposition
with
original
images.
A
lightweight
CNN
model
employed
get
significant
features.
These
further
reduced
Cosine
similarity‐based
technique.
proposed
framework
assessed
Kvasir
dataset.
To
verify
effectiveness
framework,
vast
experiments
conducted.
overall
accuracy
97.68%,
99.02%
precision,
96.37%
recall,
an
F‐measure
97.68%
achieved
810
This
reduction
resulted
classification
time.
robustness
observed
not
only
terms
considerable
improvement
accuracy,
but
also
precision
as
well
F‐measure.
Bioengineering,
Год журнала:
2023,
Номер
10(7), С. 809 - 809
Опубликована: Июль 5, 2023
This
paper
presents
an
ensemble
of
pre-trained
models
for
the
accurate
classification
endoscopic
images
associated
with
Gastrointestinal
(GI)
diseases
and
illnesses.
In
this
paper,
we
propose
a
weighted
average
model
called
GIT-NET
to
classify
GI-tract
diseases.
We
evaluated
on
KVASIR
v2
dataset
eight
classes.
When
individual
are
used
classification,
they
often
prone
misclassification
since
may
not
be
able
learn
characteristics
all
classes
adequately.
is
due
fact
that
each
specific
more
efficiently
than
other
leverages
predictions
three
models,
DenseNet201,
InceptionV3,
ResNet50
accuracies
94.54%,
88.38%,
90.58%,
respectively.
The
base
learners
combined
using
two
methods:
averaging
averaging.
performances
evaluated,
has
accuracy
92.96%
whereas
95.00%.
outperforms
models.
results
from
evaluation
demonstrate
utilizing
can
successfully
features
were
incorrectly
learned
by
learners.
Expert Systems with Applications,
Год журнала:
2024,
Номер
256, С. 124908 - 124908
Опубликована: Июль 30, 2024
The
rising
prevalence
of
gastrointestinal
(GI)
tract
disorders
worldwide
highlights
the
urgent
need
for
precise
diagnosis,
as
these
diseases
greatly
affect
human
life
and
contribute
to
high
mortality
rates.
Fast
identification,
accurate
classification,
efficient
treatment
approaches
are
essential
addressing
this
critical
health
issue.
Common
side
effects
include
abdominal
pain,
bloating,
discomfort,
which
can
be
chronic
debilitating.
Nausea
vomiting
also
frequent,
leading
difficulties
in
maintaining
adequate
nutrition
hydration.
current
study
intends
develop
a
deep
learning
(DL)-based
approach
that
automatically
classifies
GI
diseases.
For
first
time,
GastroVision
dataset
with
8000
images
27
different
was
utilized
work
design
computer-aided
diagnosis
(CAD)
system.
This
presents
novel
lightweight
feature
extractor
compact
size
minimum
number
layers
named
Parallel
Depthwise
Separable
Convolutional
Neural
Network
(PD-CNN)
Pearson
Correlation
Coefficient
(PCC)
selector.
Furthermore,
robust
classifier
Ensemble
Extreme
Learning
Machine
(EELM),
combined
pseudo
inverse
ELM
(ELM)
L1
Regularized
(RELM),
has
been
proposed
identify
more
precisely.
A
hybrid
preprocessing
technique,
including
scaling,
normalization,
image
enhancement
techniques
such
erosion,
CLAHE,
sharpening,
Gaussian
filtering,
employed
enhance
representation
improve
classification
performance.
consists
twenty-four
only
0.815
million
parameters
9.79
MB
model
size.
PD-CNN-PCC-EELM
extracts
features,
reduces
computational
overhead,
achieves
excellent
performance
on
multiclass
images.
achieved
highest
precision,
recall,
f1,
accuracy,
ROC-AUC,
AUC-PR
values
88.12
±
0.332
%,
87.75
0.348
87.12
0.324
98.89
92
respectively,
while
testing
time
0.000001
s.
comparative
utilizes
10-fold
cross-validation,
ablation
various
state-of-the-art
(SOTA)
transfer
(TL)
models
extractors.
Then,
PCC
EELM
integrated
TL
generate
predictions,
notably
terms
real-time
processing
capability;
significantly
outperforms
other
models.
Moreover,
explainable
AI
(XAI)
methods,
SHAP
(Shapley
Additive
Explanations),
heatmap,
guided
Grad-Cam
(Gradient-weighted
Class
Activation
Mapping),
Grad-CAM,
Saliency
mapping,
have
explore
interpretability
decision-making
capability
model.
Therefore,
provides
practical
intelligence
increasing
confidence
diagnosing
real-world
scenarios.
PeerJ Computer Science,
Год журнала:
2024,
Номер
10, С. e1902 - e1902
Опубликована: Март 11, 2024
Gastrointestinal
diseases
cause
around
two
million
deaths
globally.
Wireless
capsule
endoscopy
is
a
recent
advancement
in
medical
imaging,
but
manual
diagnosis
challenging
due
to
the
large
number
of
images
generated.
This
has
led
research
into
computer-assisted
methodologies
for
diagnosing
these
images.
Endoscopy
produces
thousands
frames
each
patient,
making
examination
difficult,
laborious,
and
error-prone.
An
automated
approach
essential
speed
up
process,
reduce
costs,
potentially
save
lives.
study
proposes
transfer
learning-based
efficient
deep
learning
methods
detecting
gastrointestinal
disorders
from
multiple
modalities,
aiming
detect
with
superior
accuracy
efforts
costs
experts.
The
Kvasir
eight-class
dataset
was
used
experiment,
where
endoscopic
were
preprocessed
enriched
augmentation
techniques.
EfficientNet
model
optimized
via
fine
tuning,
compared
most
widely
pre-trained
models.
model’s
efficacy
tested
on
another
independent
prove
its
robustness
reliability.