DFK 33UX252 Technical Reference Manual
17
Camera Controls
·
When using
USB3 Vision
, the resolution is controlled through the GenICam features
Width and Height.
·
When using the uvcvideo on Linux, the resolution is selected from a list of fixed
formats. Dynamic frame sizes are not available.
·
When using
IC Imaging Control
, the resolution is part of the video format, a parameter
that combines pixel format, resolution and readout mode. For more information, refer
to the
IC Imaging Control
documentation sections on
VideoFormat
and
VideoFormatDesc
.
Parameter
Horizontal Resolution
Minimum
256
Maximum
2048
USB3 Vision: GenICam
Width
Parameter
Vertical Resolution
Minimum
4
Maximum
1536
USB3 Vision: GenICam
Height
5.1.3
Readout Modes
The DFK 33UX252 camera offers different sensor readout modes.
By default, the camera outputs all pixels of the image sensor.
In
skipping
modes, the image sensor regularly skips a number of rows and/or columns
during readout. The resulting output image is smaller but contains the same field of
view than the image produced by default readout mode.
In
binning
modes, a number of neighboring pixels is merged into one output pixel
during readout. The nature of this merge operation is sensor-specific, most sensors
either add the pixel values or average them.
Generally, binning modes provide better image quality than skipping modes. However,
skipping modes usually provide a higher maximum frame rate.
The way the readout modes are controlled depends greatly upon which driver
technology is used to access the camera:
·
When using
USB3 Vision
, the readout mode is controlled through the
GenICam
features
DecimationHorizontal
,
DecimationVertical
,
BinningHorizontal
and
BinningVertical
.
·
Selecting readout modes is currently not supported through UVC in Linux.
·
When using
IC Imaging Control
, the readout mode is part of the video format - a
parameter that which combines pixel format, resolution and readout mode. For more
