Imperx BOBCAT User Manual page 108

Horizontal and vertical binning can work simultaneously with AOI. Although vertical and
horizontal binning are done in different domains, there are no differences in the way the
AOI with binning works.
Vertical Binning is done in the time domain, where the data from the binned lines is
added in the CCD. The vertical binning is performed first, and the vertical AOI is
second. The vertical AOI settings are referenced to the binned image. If the user wants to
set a vertical window of 200 lines, the user has to put 200 in the AOI height register
regardless of the selected vertical binning mode.
Horizontal Binning is done in the digital domain, where the data from the binned
pixels is added digitally. The horizontal binning is performed first, and the horizontal
AOI is second. The horizontal AOI settings are referenced to the binned image If the user
wants to set a horizontal window in the binned image with width 200 the user has to put 200
in the AOI width register regardless of off the selected horizontal binning mode.
Figure 2.11a illustrates the simultaneous usage of AOI and H & V binning. The original
image is 640 x 480. Then after 2 x 2 binning the resultant image is 320 x 240. Then a master
AOI is enabled with offset X = 80, offset Y = 120, width = 200 and height = 100. Then a
slave AOI is enabled with offset X = 50, offset Y = 30, width = 45 and height = 40. In the
left side the slave AOI is enabled in "Include" mode, and in the right side the same AOI is
enabled in "Exclude" mode. When enabled as "Include" only the selected slave AOI region
is displayed, the rest (of the master AOI) is black. When enabled as "Exclude" only the
selected slave AOI region is black, the rest is the selected master image
CAUTION NOTE
1. Vertical and horizontal binning
used for B1410, B1610 and B2520.
2. Horizontal or vertical binning used alone changes the aspect ratio of the image in
the vertical or horizontal direction. To correct this, use identical horizontal and
vertical binning modes simultaneously.
3. The frame-grabber vertical and horizontal resolution should be changed to reflect
the actual number of active pixels and lines.
4. Vertical binning may cause blooming for saturated signal levels.
5. Color version users – horizontal or vertical binning used alone will create color
distortions. If used simultaneously, the resulting image will be monochrome.
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6421 Congress Ave.
Boca Raton, FL 33487
+1 (561) 989-0006
BOBCAT Hardware User's Manual
cannot be performed when the Center mode is
108 of 265
Rev. 2.0.6
11/20/2012