Dahua DH-XVR5104HS-4KL-I3 User Manual page 179

In the Channel list, select a channel that you want to configure face detection function, and
then enable it.
Configure the parameters.
Table 5-35 Face detection parameters
Parameter
Type
Rule
Schedule
Alarm-out Port
Face detection
Description
You can select from AI by Camera and AI by Device.
AI by Camera: This option requires certain AI cameras. The camera
will do all the AI analysis, and then give the results to the DVR.
AI by Device: The camera only transmits normal video stream to the
DVR, and then the DVR will do all the AI analysis.
Click View Setting to draw areas to filter the target.
You can configure two filtering targets (maximum size and minimum
size). When the target is smaller than the minimum size or larger than
the maximum size, no alarms will be activated. The maximum size should
be larger than the minimum size.
Define a period during which the detection is active.
For details, see "Setting Motion Detection Period" section in "5.10.4.1
Configuring Motion Detection Settings."
Click Setting to display setting page.
General Alarm: Enable general alarm and select the alarm output
port.
Ext. Alarm: Connect the alarm box to the Device and then enable it.
Wireless Siren: Connect the wireless gateway to the Device and then
enable it. For details, see "5.12 IoT Function. "
When an alarm event occurs, the system links the peripheral alarm devices
connected to the selected output port.
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User's Manual