Pike
Technical
Manual
V5.2.3
162
Description of the data path
Description
of
the
data
path
FastCapture mode
By
setting
FastCapture
to
false
,
the
maximum
frame
rate
both
for
image
acquisition
and
read
out
is
associated
with
the
packet
size
set
in
the
BYTE_PER_PACKET
register.
The
lower
this
value
is,
the
lower
the
attainable
frame
rate
is.
By
setting
FastCapture
to
true
,
all
images
are
recorded
at
the
highest
possible
frame
rate,
i.e.
the
setting
above
does
not
affect
the
frame
rate
for
the
image
intake
but
only
the
read
out.
The
speed
of
the
image
transport
over
the
IEEE1394
bus
can
be
defined
via
the
BytesPerPacket
register.
This
mode
is
ideal
for
applications
where
a
burst
of
images
need
to
be
recorded
at
the
highest
sensor
speed
but
the
output
can
be
at
a
lower
frame
frequency
to
save
bandwidth.
Similar
to
the
HoldImg
mode,
captured
images
will
be
stored
in
the
internal
image
buffer,
if
the
transport
over
the
IEEE1394
bus
is
slower
than
images
are
captured.
Color interpolation (Bayer demosaicing)
The
color
sensors
capture
the
color
information
via
so-called
primary
color
(R-
G-B)
filters
placed
over
the
individual
pixels
in
a
Bayer mosaic
layout.
An
effective
Bayer
RGB
color
interpolation
already
takes
place
in
all
Pike
color
version
cameras.
In
color
interpolation
a
red,
green
or
blue
value
is
determined
for
each
pixel.
An
Allied
Vision
proprietary
Bayer
demosaicing
algorithm
is
used
for
this
interpolation
(maximum
3x3),
optimized
for
both
sharpness
of
contours
as
well
as
reduction
of
false
edge
coloring.
Color
processing
can
be
bypassed
by
using
so-called
RAW
image
transfer.
Note
This
mode
can
be
activated
only
in
Format_7.
Figure 74: Bayer demosaicing (example of 3x3 matrix)
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