Quantum Series Videowall Processing Systems • Introduction
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System capacity — Scenario 3
Figure 7.
System Capacity for Scenario 3
The limit of 144 real time video source windows is imposed by the maximum number of
card slots being used.
Expansion options — Scenario 3
Assuming that all video sources are using single-field deinterlacing, approximately
50 percent of the RAPT bandwidth is being used. Rectangulation is also well below its
limit, so there is plenty of room for adding RGB graphics (QGE 100) sources.
NOTE:
A maximum of 25 QGE 100 sources can be displayed simultaneously by a
Quantum processor at any time.
Scenario 4 — Maximum number of sources on the largest display
Screen layout — Scenario 4
In this scenario, eight UXGA displays create a 4x2 tiled display of 132 video source
windows arranged in a 16x8 array. The total display size is 6400x2400 pixels, making
each window 400x300 pixels.
Figure 8.
Example of the Maximum Video Sources on the Largest Display
Because each window is smaller than the native source resolution, the input card scales
each source down to the required size. This greatly reduces the amount of source data
to be transferred across the RAPT bus to the output card, allowing a large number of
sources to be displayed simultaneously in real time.
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