People counting camera for doorways and aisles.

How a count becomes a number

You draw a line or a zone in the camera view. Each person who crosses it is counted once, and the camera reports the total per direction over an interval you choose.

The output is a table of counts, not a video file, which is why a counting camera can run for months on a recorder that would otherwise fill up in weeks.

Mount it overhead

A counting camera needs a view from above the doorway, looking down at the threshold. On a wall beside the door, two people walking close together merge into one count and the number drifts all day.

Height, lens and the width of the line decide the accuracy. Test the count against a manual tally for a day before you report the figure to anyone.

What the number is good for

Staffing against real footfall, conversion in a shop, and the occupancy argument for a site that has a limit. All three need the count to be comparable week to week, which means the line and the height must not move after commissioning.

If the requirement is a count with identity, or a count across a wide open square rather than a doorway, a counting body is the wrong tool and the job needs a different camera or a software layer.