UD100 User Guide Document: UD100-3
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To let all projectors with the same scaling factor to avoid image size difference among the
walls. Total screen dimensions: 2.5+5+3=10.5m
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Total image width: 3840 pixels
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Pixel density: 3840/10.5= 366 pixels/m
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Assign image resolution for each wall to get the same scaling factor.
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W1 (PJ1) =366*2.5= 914 pixels (Projector #1)
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W2 (PJ2 & PJ3) =366*5= 1829 pixels (Projector #2 & #3)
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W3 (PJ4) =384*3= 1097 pixels (Projector #4)
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Based on the above data, if we express the image location by coordinate, W1 is from
0 to 914, W2 is from 914 to 2743 (914+1829), W3 is from 2743 to 3840.
e.
Video Wall settings:
User can set different Video Wall Zoom value for each projector separately. We assume to set
Zoom at H=4, V=1 for all projectors.
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W1: Zoom: H=4, V=1, Pan: H=1, V=1
Overlap: 3840/4=960, 914-960= -46
→
Right Edge = -46, Other Edge=0
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W3: Zoom: H=4, V=1, Pan: H=3, V=1,
Overlap: 3840/4=960, 1097-960= +137
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Left Edge = +137, Other Edge=0
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W2: The image captured for W2 is 1829. User needs to calculate Video Wall Overlap Pixel based on this
resolution. If we want to get 2.5m image height, we need to have 1440 overlap pixels, the overlap value
is 549 pixels.
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Under this condition, the image cropped for PJ2 should be in the range from coordinate
914 to 2377.5 (914+1829/2+549). The image for PJ3 should be in the range from
coordinate 1279.5(914+1829/2-549) to 2743 (914+1829=2743).
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PJ2 Video wall setting: Zoom: H=4, V=1, Pan: H=2, V=1. The standard coordinate after
Zoom setting will be from 960 (3840/4) to 1920 (960*2), Overlap value will be:
Left Edge: 960-914= 46, Right Edge: 2377.5-1920= 457.5 (actual 457 or 458)
