ix
Note for People Counting
To
use the camera’s built-in people counting feature (see
3.5.1.8 People Counting
), which is
only supported by certain models, it is recommended to install the camera according to the
criteria listed below:
Surveillance Condition
•
The camera shall be installed at a site with uniform, sufficient lighting, where the
person(s) to be counted are fully illuminated.
•
The camera shall be installed at an entrance or exit with an ideal width of 1 ~ 4 m
(3.28 ~ 13.12 ft), where the persons(s) to be counted move toward the lens of the
camera in single file.
Example of Recommended Scene
Example of Non-recommended Scene
Camera Position
•
The camera shall be mounted at a recommended height of 3 ~ 5 m (9.84 ~ 16.4 ft).
•
The camera shall be mounted with a recommended depression angle of 70 ~ 80°.
•
The camera shall be positioned so that the person(s) to be counted face toward the
lens of the camera and are displayed on the image with a shoulder size of between
120 ~ 160 pixels.
Surveillance
area width
Horizontal line
Depression angle
α
Optical axis of
the camera
Pedestrian walking direction
(straight along the center of
the ground)
Horizontal surveillance distance
D
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Summary of Contents for CV-ADR2702
Page 161: ...148 Figure 3 36 ...
