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Name Description
There is no motion detection within areas covered by
permanent privacy masks.
Manual
sensitivity
Determine how much each pixel in the image must change before it is regarded as
motion:
Enable manual sensitivity to define motion
Threshold
Determine how many pixels in the image must change before it is regarded as
motion:
Specify threshold to define motion
Keyframes only
(MPEG-
4/H.264/H.265)
Select this check box to do motion detection on keyframes only instead of on the
entire video stream. Only applies to MPEG-4/H.264/H.265.
Motion detection on keyframes reduces the amount of processing power used to
carry out the analysis.
Process image
every (msec)
Select an image processing interval in this list to determine how often the system
performs the motion detection analysis.
For example, every 1000 milliseconds are once every second. Default value is every
500 milliseconds.
The interval is applied if the actual frame rate is higher than the interval you set
here.
Detection
resolution
Select a detection resolution in this list to optimize motion detection performance.
Only the selected percentage of the image is analyzed, for example 25%. By
analyzing 25%, only every fourth pixel in the image is analyzed instead of all pixels.
Using optimized detection reduces the amount of processing power used to carry
out the analysis, but also means a less accurate motion detection.
Generate motion
data for smart
search
With this check box enabled, the system generates motion data for the images used
for motion detection. For example, if you select motion detection on keyframes only,
the motion data is also produced for keyframes only.
The extra motion data enables the client user, via the smart search function, to
Administrator manual | XProtect® VMS 2023 R1
428 | User interface details
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