To configure line crossing detection tool, do as follows:

  1. Select the Line crossing object. 

  2. Configure parameters.

    ParameterDescription
    EnableEnable/disable detection tool.

    Maximum object height

    Minimum object height

    		Set the maximum and minimum height of the target object as a percentage of the FoV height.

    Maximum object width

    Minimum object width

    		Set the maximum and minimum width of the target object as a percentage of the FoV width.

    Maximum object speed

    Minimum object speed

    		Set the maximum and minimum speed of the target object as a percentage of the frame per second.
    Object type

    Select the type of the target object that should trigger the detector.

    2 or more human objects moving along each other are treated by the system as a Group. If you select this type of object for tracking, single human motion, even if detected, will not cause alarms.

    If you select the Human type, group motion will not cause alarms.

    X-axis offset

    Y-axis offset

    If an object in FoV performs repetitive movements near the virtual line, it may cause excessive triggering of the detection tool. In this case, set an area within the object's track which must cross the line completely to trigger the tool. To do it, set the X and Y offset values as percentage of track width and height.


  3. Select the CrossOneLine_polyline object. 
  4. Set up a virtual line in FoV.
  5. Click  to save changes.

The detection tool is now configured.