
Installation
4
ɑ
H
D
1. The camera shall be installed right in front of the passage to take snapshots
of full-frontal faces.
2. The installation height ranges from 2.0m(6.6ft) to 3.5m(11.5ft), adjustable
according to the focal-length of different lenses and object distances).
3. The depression angle (ɑ) of the camera shall be less than or equal to 15°.
4.The object distance (D) depends on the focal-length of the lens mounted in
the camera.
Surveillance
Width Focal-length Optimal Object
Distance
Installation
Height
Camera’s
Depression Angle
2.4m(7.9ft) 6.0m(19.7ft) 2.6m(8.5ft)
2.4m(7.9ft) 7-22mm (W)
7-22mm (T)
3.6m(11.8ft) 2.1m(6.9ft) 10°
10°
► Requirements of Camera Installation & Surrounding Areas
5.To ensure the accuracy of face detection, the captured faces are only allowed
to deviate less than 30° leftward or rightward or 20° upward or downward.
6. Make sure the detected face is clear and with adequate and even light. Otherwise,
the white light mode of the camera must be enabled for light compensation
(especially, low brightness and too much darkness on the detected face).
7. The following scenes are not applicable, like crowded scenes (airport,
railway station, square, etc.), backlight scenes, crossroads and so on.