Cheetah Python Camera with USB3 Interface
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User Manual
December 5, 2017
Page
48
of
78
Rev 1.0
PixelSize:
Pixel bit depth. For example, 10 bits unpacked requires 16 bits per pixel
whereas 10 bits packed requires 10 bits per pixel.
AveragingMode
: Uses the average of several adjacent pixels to reduce image resolution.
You cannot apply averaging and subsampling simultaneously.
SubsamplingMode
: Sets the Subsampling
decimation with a “skip one, keep one”
algorithm in either horizontal, vertical, or both directions. Options are Off, Horizontal,
Vertical, and Both Directions (5.4 Subsampling).
PixelClockInfo
: Reports the current pixel clock frequency in MHz.
PixelColorFilter:
Indicates type of color filter pattern applied to the image. The default for
Python cameras is RG (read-green).
TestPattern
: Enables the following test patterns: GreyHorizontalRamp, GreyVerticalRamp,
GreyHorizontalRampMoving, GreyVerticalRampMoving, and CrossHair.
4.7.4 Acquisition Control
Acquisition Control determines the data flow between the camera and the computer.
After starting acquisition, data moves through the USB3 interface from the camera to the
computer. After acquisition stops or aborts, the transfer across the USB3 interface stops.
There is currently only one acquisition mode supported.
Figure 20Acquisition control parameters.
AcquisitionMode
: USB3 supports only the Continuous mode.
AcquisitionStart
: Starts the acquisition of the device.
AcquisitionStop
: Stops the acquisition of the device at the end of the current frame.
