3
To maintain picture sharpness (resolution) at the lower connection bandwidths the
frame rate was reduced as movement increased within the image
The HDX 4500 CODEC supports both single and dual monitor modes. When
multiple images are displayed on a single monitor only Picture outside Picture
(POP) is displayed, Picture in Picture (PIP) is not available. The second monitor
output may be configured as DVI, VGA or component video to cater for high
definition signals.
The Perspex screen across the front of the monitor was highly reflective and
degraded the image quality.
The aspect ratio and the video format of displayed images can be selected from the
comprehensive range of settings. This allows both transmitted and received images
to be optimised locally for both People and Content signals.
The options available are:
• None
—Preserves the aspect ratio of the source video: The image is scaled (if
necessary) to the largest supported resolution that fits on the display without
cropping. Unused areas of the display are filled with black borders.
• Stretch
—Aspect ratio not preserved: The image is scaled horizontally and
vertically to match exactly the resolution of the display.
• Zoom
—Preserves the aspect ratio of the source video: The image is scaled to
exactly match one of the display dimensions while matching or exceeding the other
display dimension. The image is centred and cropped.
Only the ―None‖ setting was used during the evaluation.
In single monitor mode
using the HDX4500 monitor only two images may be
displayed as a POP. Various layouts may be selected through the Layout button on
the remote control panel:
No Content being transmitted or received.
1.
Near and far sites, same size, side by side
2.
Far site big, near site small
3.
Near site big, far site small
4.
Near site, full screen
5.
Far site, full screen
