Rgb Digitization Section - Matrox Orion Installation And Hardware Reference

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RGB input
Low pass filter
Gain

RGB digitization section

The RGB digitization section includes circuitry to select,
amplify, and filter the video signal prior to sending it to the
three independent analog-to-digital converters (A/D
converters).
The RGB digitization section can be connected to and switch
between two RGB or up to six monochrome cameras. The
synchronization signal can be on any component of the RGB
input or can be received on the separate sync input (VID_IN4
or VID_IN8).
The RGB digitization section can accept simultaneous input
from three genlocked monochrome cameras. The inputs are
stored in separate color bands of the same buffer; the buffer can
be in planar format.
The MIL-Lite MdigChannel() command can be used to switch
between cameras (or channels).
The input low-pass filtering stage is used to limit high
frequency noise and aliasing effects at the input of the A/D
converter. The filter used on Matrox Orion is a 4th order
Butterworth filter with a cutoff frequency of 8 MHz. If required,
this filter can be bypassed by changing the appropriate setting
in the DCF with Matrox Intellicam.
The RGB digitization section has selectable gains that affect all
three RGB signals. This allows you to optimize the range of
video input signals. You can change the gain using the MIL-Lite
MdigControl() command.
Acquisition section
35

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