User manual

85XX Series Network DVR User Manual……………………………………………………………………….V1.0
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4.4.2.7.2 Enabling the Counting Line
Enable the counting line filter on a detection line in the desired direction(s) by checking the appropriate box in
the properties inspector. An event is generated every time an object crosses the line in the selected direction. If
multiple objects cross the line together, multiple corresponding events are generated. The events generated by
the counting line can be tied to counters in the normal manner.
4.4.2.7.3 Assigning Counters to Counting Lines
A counting line by itself simply generates events when an object to be counted is detected. In order to
actually count the events, counters (one for each direction) can be created and configured to count the
events generated by the line. To create counters, see the Counters topic.
4.4.2.7.4 Calibrating the Counting Line
In order to generate accurate counts, the counting line requires calibration. Unlike VCAsurveillance, this
cannot be performed at a general level for the whole scene using the 3D calibration tool. This is because the
counting line is not always placed on the ground plane: it may be placed at any orientation at any location in
the scene. For example, a counting line could be configured vertically with a side-on camera view.