UD100 User Guide Document: UD100-3
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5.3.3. [2x2] 4 corner geometry alignment
➢
In most of applications, no need to do keystone correction in the projector before geometry
alignment.
➢
If using short throw ratio projector in curved screen display, the image will have big distortion.
Please use projector to do geometry alignment first before GeoBox.
➢
[2x2] alignment will adjust whole image with the same scaling factor. [Warp] alignment will adjust
only some portions of the image.
➢
Please follow the sequence [2x2]
→
[3x3]
→
[5x3]
→
[9x5]
→
[17x9] to do geometry alignment to
ensure entire image will have uniform scaling factor.
➢
Apply [2X2] Corner geometry alignment and draw the corners to pre-marked locations.
➢
If no pre-marked location, please use [2x2] alignment to let the image in each projector with the
same horizontal position and also let the vertical lines without keystone effect.
➢
Measure the image size in each projector, to reduce the size of the larger image and let adjacent
projectors have similar grid size and grid number in overlap area.
➢
If the screen is curved, it is possible to have some image inside or outside the screen after 2x2
adjustment. However, it doesn’t matter once the image covers entire screen before 4 corner
adjustment. [Warp] alignment can adjust the image position back to required position.
5.3.4. [3x3], [5x3], [9x5], [17x9] Warp alignment
➢
After finish [2x2] corner alignment, apply [3x3] geometry alignment to let 9 adjusting points be
located at the required positions including 4 corners, edge center points and center line.
[2x2] 4 Corner hotkey
[3x3] warp hotkey
