Dahua Technology VDA-NVR2108W4KS2, Руководство пользователя

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Table of Contents 164
Figure 4-103
4.6.8
Other Aux Functions
4.6.8.1 Digital Zoom
In 1-window playback mode, left click mouse to select any zone on the screen, you can zoom in
current zone. Right click mouse to exit.
4.6.8.2 Switch Channel

During playback mode, select from the dropdown list to switch playback channel.
 The smart search channel does not support this function either.

When system is playing back the record file, click the number button at the front panel,
system begins playing the record file of selected channel dated the same time.
4.7 AI
4.7.1
AI Search
You can search the record file on the NVR and filter the record file meets the corresponding rule.
It is suitable for you to play the specified file.
This series NVR products support playback the AI by camera file only. AI by camera means the
connected camera does all the AI analytics, and then gives the results to the NVR.
4.7.1.1 Face Detection
You can search the detected faces and play back.
Step 1 Select Main Menu > AI > SMART SEARCH > FACE DETECTION .
The FACE DETECTION interface is displayed. See Figure 4-104.