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4.4.6 Video Quality
The different video sources need different Video Quality Settings. Main Camera, VCR, AUX and
Split Screen have Motion as default. PC, Document Camera and VNC have Sharpness as
default.
Motion
Optimized for smooth motion video (CIF/SIF for low bandwidths, iCIF/iSIF for
high bandwidths).
Sharpness
Optimized for sharp video (4CIF/4SIF, SVGA, XGA).
Auto
The system chooses the best of Motion or Sharpness depending on picture
layout and bandwidth.
4.4.6.1 Intelligent Video Management (IVM)
It is possible to configure the picture sent from the system depending upon specific requirements
and applications adding an additional level of flexibility and adaptability.
Generally, the IVM will always try to transmit the format closest to the video input format. Each
video input can be configured to either motion or sharpness:
Motion: When there is a need for higher frame rates, typically when a large number of
participants are present or when there is a lot of motion in the picture.
At low bit rate:
CIF will be used from a PAL video input
SIF from NTSC
VGA/SVGA/XGA from PC, Digital Clarity
At high bit rate:
iCIF will be used from a PAL video input, Natural Video
iSIF from NTSC, Natural Video
VGA/SVGA/XGA from PC, Digital Clarity
Sharpness: Improved quality of detailed images and graphics, lower frame rate, ideal for
enhancing quality at lower bandwidths.
4xCIF will be used from a PAL video input, Digital Clarity
4xSIF from NTSC, Digital Clarity
VGA/SVGA/XGA from PC, Digital Clarity
IVM Resolution
The following table shows relationship between Transmission modes selected by the system
when Motion or Sharpness is set in the Call Quality menu. IVM will use this table to optimize the
Video quality, according to the capabilities of the remote system(s):