3xLOGIC VIGIL Server - Manual (Page 80)

Obstacle Settings
Obstacle Settings are used to show sections of the image that are blocked by permanent, narrow objects between the area monitored
and the camera. When obstacle masks are configured, the analytics engine understands that an object will disappear behind this area
and then reappear on the other side. In some situations, light fixtures, poles, or signs could be obstacles in an image. Click to high-
light permanent obstacles. The analytics engine will track objects that disappear on one side of the obstacle and then appear on the
other side.
Once the sign is masked out, analytics knows obstacles can move under the checkout sign
to the other side.
The red area shows where an obstacle mask is required.
Black arrows show the potential movement of objects through the image once the obstacle
mask is configured.
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