Dahua NVR52-4KS2 Series User Manual page 262

The face images are modeled automatically after added to face database. You can also model
face images manually.
On the Database Config page, select a database, and then click Modeling to model all the
face images in the database.
On the Details page, select one or more face images, and then click Modeling to model the
selected images.
Export face images.
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Select one or more face images, and then click Export.
Delete face images.
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Select one or more face images, and then click Delete.
5.9.6.4 Configuring Face Recognition
Configure alarm rules for face recognition.
5.9.6.4.1 Configuring AI by Recorder
Prerequisites
Make sure the face detection function is enabled at corresponding channel.
Procedure
Select Main Menu > AI > Parameters > Face Recognition.
Step 1
Step 2 Select the channel, enable the function, and select AI by Recorder in the Type list.
Step 3 Click Setting next to Schedule to configure arming periods. The corresponding alarm
actions are linked by the alarm events triggered during armed period.
Step 4 Arm target face database.
General Alarm : The alarm is triggered when the similarity of detected faces reaches
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the defined value.
Figure 5-126 AI by recorder
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User's Manual