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Snapshot Number: If the snapshot number is enabled and set (eg. 3), the camera will
capture the same target once every 5 seconds and it will capture this target 3 times at most
during its continuous tracking period. If the snapshot number is disabled, the camera will
capture the same target once every 5 seconds until the target disappears in the detected
area.
6. Set the schedule of the face detection. The setup steps of the schedule are the same as
schedule recording setup (See 4.1.4.1 Schedule Recording Settings).
※ Configuration requirements of camera and surrounding area
1. Cameras must be installed in the area with stable and adequate light sources.
2. The installation height ranges from 2.0 m to 3.5 m, adjustable according to the
focal-length of different lenses and object distances.
3. The depression angle of the camera shall be less than or equal to 15°.
4. The object distance depends on the focal-length of the lens mounted in the camera.
5. To ensure the accuracy of face detection, the requirements for face capture are: left or
right turn angle is less than about 30°; pitching angle is less than 20°.
6. The following scenes are not applicable, like crowded scenes (airport, railway station,
square, etc), backlight scenes, crossroads and so on.
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