Vivotek CC8370-HV User Manual page 61

• Smart stream: Smart stream effectively reduces the quality of the whole or
the non-interested areas on a screen and therefore reduces the bandwidth
consumed.
You can manually specify the video quality for the foreground and the
background areas.
Select an operation mode if Smart stream is preferred.
- Auto: The Auto mode configures the whole screen into the background area.
The video quality of part of the screen returns to normal when one or
more objects move in that area. The remainder of the screen where
there are no moving objects (no pixel changes) will still be transmitted in
low-quality format.
- Manual: The Manual mode allows you to configure 3 ROI windows (the
Foreground areas) on the screen. Areas not included in any ROI
windows will be considered as the Background areas. The details in the
ROI areas will always be transmitted in a higher-quality video format.
As illustrated below, the upper screen may contain little details of your
interest, while the sidewalk on the lower screen is included in an ROI
window.
ROI_0 ROI_0
background
X X
Foreground
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User's Manual - 61