How it Works

The Eurecam is an optical people counting system. Based on a customized webcam and proprietary software, it recognizes the human silhouette as seen from directly overhead (the head and shoulders in the horizontal plane, see video, AVI, 964kB).

Positioning the counter in this way avoids the risk of false positives (phantom triggering, such as when a man with a ladder under his arm breaks a horizontal beam with each rung), and of undercounting, which can occur when more than one person breaks a beam at the same time.

The Eurecam has been independently shown to achieve greater than 98% accuracy in typical conditions.* The software is able to detect multiple individuals crossing the counting line in both directions simultaneously, and this information can be fed via a PoE cable (power over ethernet):

• directly to a computer terminal (typically when there is just a single entrance)
• to a special hub (Concentrix, mutiple cameras)

The hub captures, backs up and makes the data available both in real time for live occupancy display options such as the Affix, and historically for analysis with packages such as Statistix. A PC linked directly to a single camera can perform the same functions for a small installation.

The camera is programmable and may be adjusted over the network to cope with most lighting conditions, ceiling heights and passage widths. Three different lenses are also available to cope with unusual configurations.

Multiple cameras may be linked to create separate or interlinked counting zones, each with multiple entrances and exits. These can be used to measure people flow through a building, or the popularity of a specific exhibit or product stand, while alerting staff should the occupancy of any or all zones exceed the safe maximum.

Full technical data is available on request.
*Study by Bureau Veritas, 10/10/09, also available on request.