3xLOGIC VIGIL Server - Manual (Page 75)

9.1.2 Perspective Settings
Select Overhead Camera if the camera view is pointed straight down. Select Perspective Camera if the camera is at an angle. Set
the person size box carefully; the accuracy of the person size box will directly affect the accuracy of analytics rules.
Overhead Camera
Overhead Camera’s are ideal for Video Analytics. Adjust the person size box to show
the average size of a person. The analytics engine uses the person size box when it is
deciding if an object is a person or a vehicle. Car size is automatically determined
relative to the person size.
Perspective Camera
The person size will increase as the person approaches the camera. Move and adjust
the first person size box to show the size and location of a person farthest from the
camera. Move and adjust the second person size box to show the size and location of
a person closest to the camera. The analytics engine uses the relative person size
boxes when it is deciding if an object is a person or a vehicle. Car size is auto-
matically determined relative to the person size.
Reset
Click the Reset button to set all
person sizes to default. The per-
son size boxes must be accurately
configured for the analytics rules
to function properly.
Freeze
Video
When a person is standing in the
ideal location, click the Freeze
Video button to stop the live feed
so that the person size rectangle
can be adjusted to an accurate
size. Click the Freeze Video but-
ton again to return to live video.
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