Electronics,
Год журнала:
2023,
Номер
12(19), С. 4134 - 4134
Опубликована: Окт. 4, 2023
The
advancement
of
Internet
Things
(IoT)
has
enhanced
the
extensive
usage
QR
code
images
in
various
computer
vision
applications.
Nonetheless,
this
also
brought
forth
several
technical
challenges.
In
particular,
logistics
sorting
system
often
encounters
issues
such
as
a
low
recognition
rate
and
slow
processing
speed
when
dealing
with
under
complex
lighting
conditions
like
uneven
illumination.
To
address
these
difficulties,
method
that
focuses
on
achieving
fast
adaptive
binarization
through
dynamic
illumination
equalization
was
proposed.
First,
an
algorithm
based
edge
enhancement
to
obtain
position
detection
patterns
within
applied,
which
enabled
acquisition
structural
features
Subsequently,
can
achieve
equalization.
As
for
validation,
experiments
were
performed
two
datasets
include
influenced
by
strong
light,
weak
different
shadow
degrees.
results
disclosed
benefits
proposed
compared
previous
approaches;
it
produced
superior
rates
78.26–98.75%
cases
commonly
used
decoders
(Wechat
Zxing),
faster
0.0164
s/image,
making
proper
satisfy
real-time
requirements
practical
applications,
system.
Biosensors,
Год журнала:
2022,
Номер
13(1), С. 18 - 18
Опубликована: Дек. 23, 2022
With
the
increasing
market
share
of
ready-to-cook
foods,
accurate
determination
food
freshness
and
thus
safety
has
emerged
as
a
concern.
To
commercialize
popularize
sensing
technologies,
sensors
with
diverse
functionalities,
low
cost,
facile
use
must
be
developed.
This
paper
proposes
printable
based
on
hydrogel-containing
pH
indicator
to
detect
ammonia
gas.
The
were
composed
biocompatible
polymers
such
2-hydroxyethyl
methacrylate
(HEMA)
[2-(methacryloyloxy)ethyl]
trimethylammonium
chloride
(MAETC).
p(HEMA-MAETC)
hydrogel
sensor
bromothymol
blue
(BTB)
demonstrated
visible
color
change
function
concentration
during
spoilage.
Furthermore,
polyacrylonitrile
(PAN)
was
added
improve
transport
speed
ammonium
ions
matrix
in
optimized
viscosity
enable
successful
printing.
changed
within
3
min
at
300
ppb
1
ppm,
respectively.
exhibited
reproducibility
over
10
cycles
selective
exposure
various
gases
generated
spoilage
process.
In
an
experiment
involving
pork
spoilage,
significant
before
after
gas
8
h
ambient
conditions.
proposed
can
integrated
bar
codes
QR
that
are
easily
mass
produced.
Analytical Methods,
Год журнала:
2023,
Номер
15(40), С. 5286 - 5293
Опубликована: Янв. 1, 2023
Hydrogen
peroxide
(H2O2)
is
commonly
used
as
a
preservative,
disinfectant,
bleach,
and
oxidizing
agent.
The
prolonged
consumption
of
H2O2
adulterated
milk
harmful
to
human
health
when
consumed
in
the
diet.
Exposure
can
lead
oxidative
stress,
cell
damage
tissue
injury.
Due
potential
adverse
effects,
use
hydrogen
regulated
certain
applications,
such
food,
water
treatment
plants
medical
products.
Several
methods
are
available
for
detection
various
matrices.
Here,
method
QR
code-integrated
chromogenic
paper
strip
aqueous
samples
has
been
developed.
spectrophotometric
showed
an
LOD
LOQ
0.00087
±
8.70
×10-5%
(v/v)
0.0037
0.0003%
(v/v),
respectively.
paper-based
prepared
by
immobilizing
recognition
solution
onto
code
was
able
detect
0.0005%
v/v
samples.
integrated
sensors
serve
useful
tool
consumers,
regulatory
agencies,
food
industry
assess
quality
authenticity.
We
present
the
application
of
QR
Codes
as
carriers
for
colorimetric
dyes,
whereby
this
refined
version
machine-readable
patterns
applied
to
sensing
also
allows
us
maintain
data
from
Code
standard
in
a
back-compatible
way,
which
means
that
is
still
able
encode
digital
(readable
with
decoder)
alongside
hundred
references
and
dyes.
Also,
we
discuss
detail
effectiveness
different
color
correction
methods
attaining
accuracy
levels
suited
via
colorimetry.
Moreover,
illustrate
how
techniques
can
be
take
advantage
having
hundreds
references,
an
exemplary
case
CO2
printed
sensor
used
monitor
integrity
modified
atmosphere
packaging
(MAP).
Electronics,
Год журнала:
2023,
Номер
12(19), С. 4134 - 4134
Опубликована: Окт. 4, 2023
The
advancement
of
Internet
Things
(IoT)
has
enhanced
the
extensive
usage
QR
code
images
in
various
computer
vision
applications.
Nonetheless,
this
also
brought
forth
several
technical
challenges.
In
particular,
logistics
sorting
system
often
encounters
issues
such
as
a
low
recognition
rate
and
slow
processing
speed
when
dealing
with
under
complex
lighting
conditions
like
uneven
illumination.
To
address
these
difficulties,
method
that
focuses
on
achieving
fast
adaptive
binarization
through
dynamic
illumination
equalization
was
proposed.
First,
an
algorithm
based
edge
enhancement
to
obtain
position
detection
patterns
within
applied,
which
enabled
acquisition
structural
features
Subsequently,
can
achieve
equalization.
As
for
validation,
experiments
were
performed
two
datasets
include
influenced
by
strong
light,
weak
different
shadow
degrees.
results
disclosed
benefits
proposed
compared
previous
approaches;
it
produced
superior
rates
78.26–98.75%
cases
commonly
used
decoders
(Wechat
Zxing),
faster
0.0164
s/image,
making
proper
satisfy
real-time
requirements
practical
applications,
system.
