4. The object distance depends on the focal-length of the lens mounted in the camera.
5. In order to guarantee the captured face recognition rate, the requirement for face capture are: left or right face turn angle is less
than about 30°; pitching angle is less than 20°.
6. Face illumination must be uniform, if the brightness is low or there is a large area of shadow, need to do the light filling.
7. When the capture scenario is backlight, the camera's BLC/HLC/WDR need to be turned on, or fill the light.
8. The face recognition do not support black & white mode for now.
4.4.6 Region Entrance
Region Entrance: Alarms will be triggered if the target enters the pre-defined areas.
Go to ConfigEventRegion Entrance interface as shown below.
1. Enable region entrance detection and select the snapshot type and the detection target.
2. Set the alarm holding time and alarm trigger options.
3. Set the alarm area of the region entrance detection.
4. Set the schedule of the region entrance detection.
The setup steps of the region entrance detection are the same as the region intrusion detection setup (See
4.4.4 Intrusion
for
details).
28