VWC-44
39
4.
HID interface will be used in
VWC-44
in the future. At that time, user will be able to control
Gwarp
through USB, Ethernet or WiFi.
13.7 Example for 3 projector edge blending setup
Edge Blend can enlarge the display screen and change the aspect ratio using multiple projectors.
Three elements are required for edge blending: One is to do geometry alignment and let all images
from the projectors have the same size. Secondly, to use Video Wall function to split the input signal,
crop the right portion and assign to each projector. The third is to do edge blending to become
seamless image and do color fine-tune. Below is example of the procedures for three projector edge
blending.
a
、
Excel Spread Sheet is available to for user to determine the projectors (resolution, quantity, lumens
and throw ratio) and information for system installation (single projector image size, overlap area size,
installation distance and optimized content resolution…). Based on this information, user can make
detailed project plan for the complete system.
b
、
Placement of the Projectors:
Select projectors with higher contrast ratio (above 3000:1 is recommended) and set projectors at
reasonable distance from the screen with 200-500 overlap pixels (or 30cm-50cm overlap width)
between two projectors.
Use removable tape as temporary marks to indicate the image edges for each projector and
screen center line (based on the data from Excel Spread Sheet). Each projector should have the
same display size. Otherwise the grid size in each projector will be different and the blending
image will become blurred.
To display each projector a little over the display range for further geometry adjustment.
Please try to install the projector with less keystone image.
To set parallel vertical overlap edges between 2 adjacent projectors and let the positions of the
lines close to pre-marked positions will get better video quality.
c
、
Projector setting:
Reset projector to default setting.
To disable “Auto Alignment” function if user wants to use VGA analog input signal to avoid image
shift during projector switching ON/OFF process.
Disable Auto Keystone function.
Select a Display Mode with 2.2 gamma curve will reduce the color difference in overlap area.
User needs to test with different Display Mode setting based at final color fine-tune stage.
Use projector internal color adjusting function to adjustment the color variation among projectors
before implement edge blending.
d
、
VWC-44
Setting
Reset
AV-BOX
to default setting.
Select output resolution to be the same as projector native display resolution.
Set [OSD Time Out] to [OFF] to maintain the display of OSD and Grid Test Pattern during the
