Object Data Base
Back to the Laboratory
of Experimental Psychology
Karl
Verfaillie
and
Luc
Boutsen
constructed
a
set
of
full-color
images
for
use
in
research
on
the
effects
of
in-depth
rotation
on
visual
identification
of
three-dimensional
objects.
Below
are
a
few
example
images.
The
corpus
contains
up
to
11
perspective
views
of
70
nameable
objects.
For
some
objects,
the
number
of
different
views
is
smaller.
This
is
the
case
when
the
object
contains
several
planes
of
symmetry,
so
that
it
projects
to
the
same
image
when
seen
from
different
vantage
points
(in
the
extreme
case
of
a
uniform
sphere,
all
views
would
be
equivalent).
The
total
number
of
images
amounts
to
714.
The
images
were
constructed
with
Autodesk
3D
Studio
(Autodesk,
Inc.,
1993)
and
have
a
resolution
of
640
x
480
pixels.
Part
of
the
3-D
models
were
build
by
Jan
Vaes.
Another
part
was
delivered
with
the
3D
Studio
software.
According
to
the
license
agreement,
images
constructed
on
the
basis
of
these
models
can
be
used
unencumberedly.
An
article
that
is
published
in
Perception
&
Psychophysics
(Verfaillie & Boutsen, 1995)
provides
more
details
on
the
stimulus
set
(also
see
Boutsen,
Lamberts,
& Verfaillie,
P&P,
1998).
In
addition,
the
article
contains
ratings
of
the
"goodness"
of
each
view,
based
on
Thurstonian
scaling
of
subjects'
preferences
in
a
paired-comparison
experiment.
The
article
also
reports
on
an
exploratory
cluster
analysis
on
the
scaling
solutions.
This
analysis
indicates
that
the
amount
of
information
available
in
a
given
view
generally
is
the
major
determinant
of
the
goodness
of
the
view.
For
instance,
objects
with
an
elongated
front-back
axis
tend
to
cluster
together
and
the
front
and
back
views
of
these
objects,
which
do
not
reveal
the
object's
major
surfaces
and
features,
are
evaluated
as
the
worst
views.
The
full
corpus
of
images
in
GIFormat
(Graphics
Interchange
Format)
(16
MBytes)
can
be
obtained
from
the
FTP
site
at
the
Leuven
Department
of
Psychology
(ftp://michotte.psy.kuleuven.ac.be/pub/obj_db)
or
from
the
FTP
site
at
Yale
university
(ftp://ftp.ctan.yale.edu/pub/ObjDataBank;
we
are
grateful
to
Mike
Tarr
for
providing
this
opportunity).
The
images
can
be
copied
and
used
for
research
purposes,
provided
that
all
publications
based
on
research
with
the
images
cite
the
Verfaillie
and
Boutsen
paper.
Note
that
the
images
are
for
non-profit
use
only
and
the
use
of
any
image
in
a
for-profit
manner
is
a
violation
of
the
license
agreement.
Verfaillie,
K.,
&
Boutsen,
L.
(1995).
A
corpus
of
714
full-color
images
of
depth-rotated
objects.
Perception
&
Psychophysics,
57,
925-961.
Boutsen, L.,
Lamberts, K.,
&
Verfaillie, K.
(1998).
Recognition
times
of
different
views
of
56
depth-rotated
objects:
A
note
concerning
Verfaillie
and
Boutsen
(1995).
Perception
&
Psychophysics,
60,
900-907.
Karl.Verfaillie@psy.kuleuven.ac.be
Laboratory for Experimental Psychology
Department of Psychology, K.U.Leuven
Tiensestraat 102
B-3000 Leuven, Belgium
tel.: +32-16-32.59.66
fax: +32-16-32.60.99
Last edited October 26, 1998