TrafficXRoads: Guide
page 19
Basic object presence detection
For the detection of object presence in real-time we can use the combination of
Zone
spatial filter in the
NOW
time mode. The
Zone
spatial filter can be combined with the
Category
filter, if you want to react to a presence of a specific object type. The number of
detectors is not limited in the system. On the left side, pick the
Create zones/gates
tool
and draw a zone in the area where we want to detect the vehicle presence. The system
will automatically recognize whether it is a gate or a zone based on the drawn shape.
Next, we move the zone with the
drag and drop
technique into the right side panel, also
referred to as workspace, which will instantiate it and the zone will start automatically
filtering the trajectories from within the FLOW device cache.
