GelLight: Illumination Design, Modeling, and Optimization for Camera‐Based Tactile Sensor
Advanced Intelligent Systems,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 28, 2025
Camera‐based
tactile
sensors
attract
the
attention
of
robotics
communities
by
high‐density
perception,
in
which
image
quality
and
reconstruction
accuracy
are
significantly
determined
illumination
design.
However,
influence
has
not
yet
been
systematically
analyzed,
most
existing
adopt
empirical
design
subjective
evaluation
to
determine
light
configuration.
Herein,
a
photometric
stereo‐based
modeling,
optimization,
system
is
proposed
explore
best
for
typical
camera‐based
sensors.
First,
this
article
constructs
benchmark
dataset,
simulates
contact
deformation
elastomer
surface,
rendering
imaging
under
various
illuminations,
metrics
evaluate
performance.
Then,
relationship
between
reconstruct
direction
distribution
on
depicted,
optimized.
The
optimized
sensor
fabricated
evaluated
standard
metrology
experiments,
exhibits
high
convincingly
demonstrates
effectiveness
optimization
approach.
Furthermore,
intensive
experiments
conducted
diverse
objects,
additionally
indicate
generality
adaptability
designed
sensor.
can
simplify
improve
performance
Language: Английский
Tactile data generation and applications based on visuo-tactile sensors: A review
Information Fusion,
Journal Year:
2025,
Volume and Issue:
unknown, P. 103162 - 103162
Published: April 1, 2025
Language: Английский
From marker features to multimodal fusion: a review of vision-based tactile sensor design and development
Ning Han,
No information about this author
Shen Jingjin
No information about this author
tm - Technisches Messen,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 8, 2025
Abstract
Vision-based
tactile
sensors
capture
visual
information
from
contact
surfaces
to
perceive
signals.
In
recent
years,
these
have
been
widely
used
in
robotic
systems
enhance
their
perception
capabilities.
To
meet
the
demands
of
various
application
scenarios,
numerous
hardware
designs
for
developed.
This
paper
reviews
design
and
development
vision-based
sensors.
Based
on
sensing
principles
implementation
methods,
we
categorize
existing
into
three
main
types:
based
marked
features,
coating
geometric
vision-tactile
modality
fusion
For
each
type,
delve
core
technical
challenges,
solutions,
corresponding
strategies.
By
summarizing
characteristics
solutions
sensors,
this
aims
provide
researchers
with
a
comprehensive
reference
past
studies
while
also
exploring
potential
future
research
directions.
Language: Английский