Calibrating the scanner
You
need
to
perform
calibration
in
order
to
ensure
the
work
of
the
scanner
after the
adjustment
of
lenses.
Specifically
for
this
purpose
we
use
the
calibration
plate, which
is
pre-measured
with
high
accuracy
.
Scanning
software
analyzes
the
image
of the
plate,
obtained
from
the
cameras
and
compares
it
with
the
mathematical
model, marked
by
the
algorithm.
There
are
3
types
of
calibration:
Full
calibration
,
automatic
calibration
,
fast
calibration
(orientation)
and
Calibration
of
turntable
(finding
the
table
axis)
.
Full
and
automatic
calibrations
are
used:
●
before
work
with
the
scanner,
●
after
transporting
the
scanner.
Fast
calibration
is
used:
●
if
you
suspect
that
the
camera
moved
due
to
unreliable
mounting,
●
if
you
want
to
check
the
accuracy
of
performed
calibration.
Calibration
of
rotary
table
is
performed:
●
in
case
of
any
change
in
the
position
of
the
rotary
table
to
the
scanner
(when
scanning
on
the
turntable).
Calibration
of
rotary
table
is
described
in
the
Scanning
on
the
turntable
section.
Calibration
plate
Calibration
plate
is
a
special
plate
with
markers,
the
distance
between
which
is
measured
with
high
accuracy.
It
is
used
for
setting
up
a
scanner
and
its
calibration.
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