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6.4 ROI
ROI (Region of Interest) encoding helps to discriminate the ROI and background informaon in
video compression. The technology assigns more encoding resource to the region of interest, thus
to increase the quality of the ROI whereas the background informaon is less focused.
6.4.1 Set ROI
ROI (Region of Interest) encoding helps to assign more encoding resource to the region of interest,
thus to increase the quality of the ROI whereas the background informaon is less focused.
Before You Start
Please check the video coding type. ROI is supported when the video coding type is H.264 or H.
265.
Steps
1.
Go to Conguraon → Video/Audio → ROI .
2.
Check Enable.
3.
Select Stream Type.
4.
Select Region No. and click to draw ROI region on the view screen .
Note
Select the xed region that needs to be adjusted and drag the mouse to adjust its posion.
5.
Input the Region Name and ROI Level.
6.
Click Save.
Note
The higher the ROI level is, the clearer the image of the detected region is.
7.
Oponal: Select other region No. and repeat the above steps if you need to draw mulple xed
regions.
6.5 Target Cropping
You can crop the image, transmit and save only the images of the target area to save transmission
bandwidth and storage.
Steps
1.
Go to Conguraon → Video/Audio → Target Cropping .
2.
Check Enable.
3.
Select a Cropping Resoluon.
Cropping Resoluon
Cropping resoluon is the main stream resoluon aer target cropping.
Network Speed Dome User Manual
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