Check against a hand count first
Count a busy ten minutes by hand (or from a recording) and compare with the line’s counter for the same ten minutes. It tells you whether the count is high or low, and when it goes wrong.
Too low: objects missed
- Objects too small in the frame: move or zoom the camera, or move the line to where they look bigger. See Camera placement.
- People walking close together are merged into one from an angled view. An overhead camera separates them best.
- The detection threshold is too high, or a basic motion profile is set to low sensitivity.
- The line is too close to the edge of the frame, or behind a counter or pillar.
- The PC is overloaded at busy times: see High CPU or GPU load.
Too high: things counted twice or by mistake
- Shadows, reflections or moving doors are counted: raise the threshold, use an AI profile, or cut them out with the area of interest.
- People cross a line and turn back: move the line to where people are committed to their direction.
- Two cameras see the same area and their lines or zones overlap: each person is counted by both.
- On a basic motion profile, the calibration ruler is too small, so one person becomes several objects.
Live occupancy drifts during the day
- An entrance has no line, or a line counts only one direction.
- In and Out are swapped on one of the lines in the occupancy report.
- The reset time falls while people are still inside. Set it for a time the place is empty.
Still stuck?
Email support@crowdsense.events with your account reference (it starts CS-D-), the computer’s name and a screenshot of what you see. For sales questions, contact us.
