The Counting Line has the purpose of counting the objects that pass in the image, more specifically people or vehicles. The Counting Line rule can only be applied to lines and not zones.
Let's configure the count line from an ordinary line. In the figure below, a line was created in the previously calibrated image:
The count line offers the following configuration options:
•Direction A: Specifies that there will be counting for the A side of the line
•Direction B: Specifies that there will be counting for the B side of the line
•Calibration: Calibration of the size of the object to be counted. This calibration can be done directly through the line. In the case of the figure above, crossing the counting line there are 6 more lines, where the largest refer to the size of the object to be contacted, that is, the gap between these two largest straight lines would be the size of a person's shoulders, and the smaller lines would be an acceptance limit. Note that for this count to work well, the camera must be well above the objects, in the case of people, the head and shoulders must be more visible in the image. Below is an example of proper camera and counting line positioning:
The red arrow in the image demonstrates where the count line is located.
•Shadow filter: If there is shadow interference in the place, this filter can help to minimize the effect.