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.
Pattern Recognition Letters,
Год журнала:
2024,
Номер
184, С. 37 - 43
Опубликована: Июнь 7, 2024
In
real
world
uses,
QR
Codes
are
printed
or
overlaid
on
top
of
complex
surfaces,
like
cylindrical
bottles
other
daily
objects
with
random
topographies
that
pose
big
challenges
to
their
readout
the
conventional
planar
algorithms
proposed
in
standard
ISO
and
implemented
most
available
codes.
We
propose
here
a
general-purpose
method
improve
readability
placed
these
challenging
by
fitting
topography
underlying
arbitrary
surface
thin-plate
splines.
Then,
we
compare
this
new
alternatives
literature,
affine,
projective
transformations.
Results
demonstrate
our
approach
works
well
under
variety
including
those
assumed
former
proposals,
factor
4,
clearly
outperforming
state-of-the-art
decoders.
Smartphones
have
the
potential
to
transform
chemical
and
biological
analysis
by
functioning
as
portable,
versatile,
democratized
platforms
for
molecular
diagnostics.
Recent
advances
in
optical
detection
devices
are
reviewed.
World Journal of Advanced Research and Reviews,
Год журнала:
2023,
Номер
18(3), С. 1207 - 1231
Опубликована: Июнь 27, 2023
Smart
agriculture,
enabled
by
advanced
technologies
such
as
internet
of
things,
artificial
intelligence
and
data
analytics,
offers
immense
potential
for
optimizing
farming
practices
increasing
agricultural
productivity.
However,
the
adoption
smart
agriculture
systems
continues
to
grow,
it
brings
forth
various
security
issues
that
need
be
addressed
protect
operations,
integrity,
privacy.
This
paper
provides
an
overview
in
including
vulnerabilities
things
devices,
lack
standardized
protocols,
limited
awareness
among
farmers,
challenges
securing
communication
networks.
In
addition,
highlights
robust
measures
mitigate
risks
unauthorized
access,
breaches,
disruption
operations.
Moreover,
emphasis
should
laid
on
importance
collaborative
efforts
between
technology
providers,
stakeholders,
researchers,
policymakers
develop
effective
solutions
standards
ensure
trustworthiness
resilience
systems.
Advanced Materials,
Год журнала:
2023,
Номер
35(49)
Опубликована: Окт. 2, 2023
Abstract
Materials
are
the
fundament
of
physical
world,
whereas
information
and
its
exchange
centerpieces
digital
world.
Their
fruitful
synergy
offers
countless
opportunities
for
realizing
desired
transformation
processes
in
world
materials.
Yet,
to
date,
a
perfect
connection
between
these
worlds
is
missing.
From
perspective,
this
can
be
achieved
by
overcoming
paradigm
considering
materials
as
passive
objects
turning
them
into
perceptual,
information‐providing
matter.
This
matter
capable
communicating
associated
digitally
stored
information,
example,
origin,
fate,
material
type
well
intactness
on
demand.
Herein,
concept
integrating
customizable
(sub‐)micrometer‐sized
supraparticles
(CSPs)
presented.
They
assembled
from
individual
nanoparticulate
and/or
(macro)molecular
building
blocks
with
spectrally
differentiable
signals
that
either
robust
or
stimuli‐susceptible.
combination
yields
functional
signal
characteristics
provide
an
identification
signature
one
multiple
stimuli‐recorder
features.
enables
CSPs
communicate
tagged
encountered
stimuli
histories
upon
readout
anywhere
across
life
cycle.
Ultimately,
link
numerous
use
cases
thereof,
particular
fostering
transition
age
sustainability.
Optical Materials Express,
Год журнала:
2024,
Номер
14(7), С. 1779 - 1779
Опубликована: Март 6, 2024
Resins
for
3D
printing
usually
do
not
present
suitable
photoluminescence
application
in
optoelectronic
devices.
Herein,
a
conjugated
polymer
(PFeBSe)
with
luminescent
and
high
refraction
index
properties
was
synthesized
used
to
modify
an
acrylate-based
resin.
This
PFeBSe
copolymer
presents
ester-based
side
group
that
enhances
the
compatibility
acrylate
resin,
resulting
homogeneous
polymeric
blend.
Further,
modified
resin
employed
digital
light
processing
(DLP)
technique
produce
guiding
structures
tailored
index.
To
maintain
parameters
of
blending
kept
at
low
concentration
range
5%
15%
(v/v).
The
changed
pristine
from
1.49
1.51
(5%
v/v)
1.56
(15%
v/v),
respectively.
Moreover,
extinction
coefficient
wavelength
region
above
600
nm.
These
characteristics
enable
fabrication
controllable
forms
dimensions
can
be
design
advanced
sensors
Chemosensors,
Год журнала:
2024,
Номер
12(12), С. 260 - 260
Опубликована: Дек. 13, 2024
Color
consistency
when
reading
colorimetric
sensors
is
a
key
factor
for
this
technology.
Here,
we
demonstrate
how
the
usage
of
machine-readable
patterns,
like
QR
codes,
can
be
used
to
solve
problem.
We
present
our
approach
using
back-compatible
color
codes
as
sensors,
which
are
common
that
also
embed
set
hundreds
references
well
indicators.
The
method
allows
locating
sensor
within
captured
scene
and
perform
automated
correction
ensure
regardless
hardware
used.
To
it,
CO2-sensitive
indicator
was
printed
on
top
paper-based
substrate
screen
printing.
This
formulated
Modified
Atmosphere
Packaging
(MAP)
applications.
verify
method,
were
exposed
several
environmental
conditions
(both
in
gas
composition
light
conditions).
And,
images
with
an
8M
pixel
digital
camera
sensor,
similar
those
smartphones.
Our
results
show
have
relative
error
9%
CO2
concentration
20%.
good
result
low-cost
disposable
not
intended
permanent
use.
However,
soon
change
(2500–6500
K),
increases
up
ϵ20
=
440%
(rel.
at
20%
concentration)
rendering
unusable.
Within
work,
reduce
14%.
Furthermore,
most
correction,
white
balance,
sufficient
address
issue,
resulting
90%.
