VIVOTEK
User's Manual - 75
ROI: higher-quality
non-ROI: lower-quality
As the result, the lower screen is constantly displayed in high details, while the
upper half is transmitted using a lower-quality format. Although the upper half is
transmitted using a lower quality format, you still have an awareness of what is
happening on the whole screen.
- Hybrid: The major difference between the “Manual” mode and the “Hybrid” mode
is that:
In the “Hybrid“ mode, any objects entering the non-interested area will
restore the video quality of the moving objects and the area around them.
The video quality of the associated non-interested area is immediately
restored to normal to cover the moving objects.
In the “Manual” mode, the non-interested area is always transmitted using
a low-quality format regardless of the activities occurring inside.
You should also select the Maximum bit rate from the pull-down menu as the
threshold to contain the bandwidth consumption for both the high- and low-quality
video sections in a smart stream.
- Quality priority: Use the slide bar to tune the quality contrast between the ROI
and non-interested areas.
The farther the slide bar button is to the right, the higher the image quality
of the ROI areas. On the contrary, the farther the slide bar button to the left,
the higher the image quality of the non-interested area.
In this way, you may set up an ROI window as a privacy mask by covering a
protected area using an ROI window, while the rest of the screen becomes
the non-interested area. You may then congure the non-interested area to
have a high image quality, or vice versa.
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