Network Video Recorder User Manual
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3. Set Capture Interval, Frequency Threshold, Statistics Cycle, and Daily Report Time.
Capture Interval
When a person has appeared several times within the capture interval, the device only counts
1 time for this person.
Frequency Threshold
It will trigger an alarm when the frequency reaches the threshold.
Statistics Cycle
Time period for counting the people frequency. For example, if the statistics cycle is 7 days,
device will count people frequency in the last 7 days (including today), if a person has not
exceeded the frequency threshold in the last 7 days, it will trigger an alarm.
Daily Report Time
Daily report of low frequency person statistics at the predefined time.
4. Click Linked Channel to select channel.
5. Click Linked Face Picture Library to select face picture library.
6. Set linkage actions. Refer to Configure Linkage Actions.
7. Click Save.
Aggregation Strategy
Aggregation strategy parameters are used for frequently appeared person alarm. This function is
usually used for technical support, please contact our technical support before editing parameters.
You can configure the similarity and score via web browser in Configuration → VCA Configuration
→ Aggregation Strategy.
When a person has two or more face pictures in the face library, the aggregation strategy function
will aggregate facial features from these face pictures, so as to improve the accuracy of facial
recognition and alarm.
7.4.6 Face Picture Search
Search by Face Picture Comparison Event
Search face picture by face picture comparison results.
Steps
1. Go to Smart Analysis → Smart Search → Face → Search by Event.
2. Set the start time and end time.
3. Select a channel.
4. Select Event Type as Face Picture Comparison.
5. Click Start Search. The search result list displays 1 channel.
6. Click Channel to select a channel as your desire. It will display search results for the selected
channel.
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