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40
8.1.2.4 ROI
Region of interest (often abbreviated as ROI), is a selected subset of samples within a
dataset identified for a particular purpose. Users can select up to 8 key regions of a scene
to transmit through separate streams for targeted preview and recording.
By using the ROI technology, more than 50% of bit rate can be saved and therefore less
bandwidth demanded and the storage usage reduced. So according to this, you can set a
small bit rate for high resolution.
Table 15. Description of the buttons
Parameters
Function Introduction
Enable
Check the checkbox to enable the ROI function.
Video
Stream
Choose the Video Stream.
Operation
After drawing the ROI key regions on the live view, click Save.
• Enable/Disable / : Enable/disable the selected ROI
areas.
• Delete : Delete the selected ROI areas.
Delete All
Clear all areas you drew before.
Note: You can set a low bit rate. For example, you can set a bit rate with 512 Kbps and a
resolution with 1080P, then you can see the image quality of ROI is clearer and more
fluent than the other region.
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