5. CAMERA CONFIGURATION
to SceneScan, or when a Bayer pattern pixel format is selected. The com-
bined demosaicing and down-sampling reduces artifacts from the Bayer pat-
tern, which improves the image processing quality.
Switching the camera configuration between full resolution and pixel bin-
ning / down-sampling mode will also affect the covered depth range, if the
disparity range is kept constant. A constant disparity range will cover a larger
percentage of an image that was acquired with active pixel binning, compared
to an image acquired at the native camera resolution. Hence, the disparity
range should be adjusted when changing the pixel binning configuration.
5.2
Other Camera Settings
The cameras provide a multitude of different settings that can be configured
when connected to SceneScan or SceneScan Pro. For a full documentation of
all settings we recommend to consulting the GenAPI standard
. The most
common camera settings are described in the following.
5.2.1
Analog Control
Gain:
Gain factor for the image sensor.
Gain auto:
Sets the mode for automatic gain control.
Black level:
Controls the analog black level as an absolute physical
value.
Gamma:
Controls the gamma correction of pixel intensity.
5.2.2
Image Format Control
Width:
Width in pixels of the selected Region-Of-Interest
(ROI).
Height:
Height in pixels of the selected ROI.
Offset X:
Horizontal image coordinate of the top-left corner of
the selected ROI. When configured through Scene-
Scan, this coordinate is measured relatively to the
image center.
Offset Y:
Vertical image coordinate of the top-left corner of the
selected ROI. When configured through SceneScan,
this coordinate is measured relatively to the image
center.
Binning horizontal:
Number of horizontal photosensitive cells that are
combined for one image pixel.
Binning vertical:
Number of vertical photosensitive cells that are com-
bined for one image pixel. There is a conditional de-
pendency to the
binning horizontal
parameter, which
has to be adjusted first.
2
See https://www.emva.org/standards-technology/genicam/genicam-downloads/
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