Ganz PIXELPRO SERIES, Инструкция по интерфейсу

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Configuration of Zones and Rules
37
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.
Instead of the 3D calibration tool, the counting line has its own calibration setting. Two bars
equidistant from the centre of the line represent the width of the expected object. This
allows the counting line to reject noise and also count multiple objects.
To calibrate the counting line:

Select the counting line with the mouse.

Check the "Width Calibration" box under the Counting Line rule in the property
inspector.

Use the mouse wheel or drag the calibration markers to adjust the distance between
the calibration markers until the distance is approximately the size of the objects to
be counted.

The calibration width is displayed on the property inspector under the counting line
rule. The figure which is displayed is the calibration width expressed as a percentage
of the image width. This figure can also be edited to change the calibration width.

The small markers on either side of the big markers indicate the minimum and
maximum width which is counted as a single object.

Apply the settings.