PIXELVISION SPECTRAVIDEO, Руководство пользователя

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SpectraVideo Camera User’s Manual Software Development
31
ROI
n
n = Lines before ROI
k = Pixels before ROI
r = Lines after ROI
m = Pixels after ROI
l = Width of ROI
p = Height of ROI
k
r
m
l
p
Figure 11 Single ROI Parameters
11.1.3. C
OMMAND
S
UMMARY
Control
Character
(ASCII)
Function Discussion
a
Pixels per line
Sets the number of pixels per line in the digitized
frame when ROI is disabled. This number must be
greater than the number of serial shifts needed to
fully clear the CCD serial register plus four to
accommodate pipeline delays in the analog to
digital conversion. It must be large enough to clear
the lead-in pixels in the imager as well as the
active pixels. If serial binning is used, this number
may be divided by the number of serial pixels
binned, but the extra 4 pixels for pipeline delay
must still be added. Min = 1.
b Lines per frame
Sets the number of lines in the digitized frame
(minus one) when ROI is disabled. This number
must be large enough to clear the entire active
area of the CCD plus one to clock the last line into
the PCI data acquisition board. If parallel binning is
used, this number may be divided by the number
of lines binned, but one must be added to clock
the last line in. Min = 1.
c
Serial pixels
binned minus 1.
Sets the number of serial pixels that are binned
into summing well. Setting this number to 0 turns
off serial binning; setting it to 1 bins two serial
pixels, etc. Min = 0.