Crowd Detection

The Crowd Detection video analytic is a video analytic that offers crowd detection, event triggering, and alarms.

You can define the area that the Crowd Detection video analytic monitors for the number of people in the monitored area (capacity) and the percentage of the monitored area with people (occupancy). The Crowd Detection video analytic can trigger alarms when it detects a specific capacity or occupancy.

The Crowd Detection video analytic can display informational decorations in the camera view panel. In addition to displaying tracking boxes around areas where it detects people, Crowd Detection video analytic can display the following decorations:
  • The Occupancy decoration displays the percentage of the scene that contains people.
  • The Capacity decoration displays the estimated number of people in the scene as a percentage of the maximum capacity.
  • The Crowd Est. decoration displays the estimated number of people in the scene.
The Crowd Detection video analytic can detect people that are 8 pixels or larger in the scene. When placing a camera for use with the Crowd Detection video analytic, consider the following guidelines.
  • Mount the camera so that it has an overview of the area. Do not place the camera directly overhead (90°) because the Crowd Detection video analytic cannot detect people from directly overhead and do not place the camera close to horizontal (0°) because people in the front obscure the crowd behind.
  • Mount the camera or use the processing mask so that the scene does not includes crowds larger than 50 people. The Crowd Detection video analytic does not work reliably on scenes with more than 50 people.
  • Mount the camera or use the processing mask so that the scene does not include other moving objects (e.g., vehicles) or moving shadows.


When the Crowd Detection video analytic starts, it takes approximately 2 minutes to learn the scene. During this time, the results are inaccurate.