Vivotek IP8371E User Manual download pdf (Page 60)

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60 - User's Manual

• Smart stream: Smart stream applies to streams #1 to #3. Smart stream

effectively reduces the quality of the whole or the non-interested areas on a

screen and therefore reduces the bandwidth consumed.

ROI_0

Foreground

background

You can manually specify the video quality for the foreground and the

background areas. You may also manually enter a Customized value, and note

that the custom value refers to the compression rate. The larger the number,

lower the quality.

Select an operation mode if Smart stream is preferred.

- Auto: The Auto mode congures 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.

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Vivotek IP8371E User Manual Page 60