User Manual
Aimetis People Counter 2.1
Camera Setup Aimetis People Counter 2.1
8
Camera Setup
Consider all of the factors described in
Table 1
when setting up your camera for use with the Aimetis
People Counter.
Table 1. Camera Setup
Subject Recommended Setup
Camera Height
1. Install the camera
90 degrees
overhead at a
minimum height of 9 feet (3
metres)
. A different height is possible depending on the zoom capabilities
of your camera. The most common problem is that the camera is installed
too low. People will appear very large and to be moving very fast.
2. The
Person Size
box should be no more than 1/3 the size of the screen and
no less than 1/5 of the size of the screen.
3. Although a video appears continuous to our eyes, it really is capturing
images in frames. To count a person, the camera must capture at least 3
frames - the person before the line, crossing the line, and after the line. In
normal operation, the Aimetis People Counter processes around 10 frames
per second.
Lighting
•
Poor lighting
causes the camera to increase the sensitivity of the sensors, thus
generating more noise in the video, which may result in false counts.
•
Shiny objects
, like a shiny floor may reflect light/shadows from a
surrounding area and generate false counts.
•
Sunlight from outside
, occasionally obscured by moving clouds will cause
shadows to cross a counting line. Depending on the angle of an indoor light or
the sun, the shadows of people walking by a counting line can trigger false
counts.
Storage
Historical data is stored on the camera at a resolution of 1 minute. Depending on
the camera model and traffic, storage space allows for up to 10 years or more of
data.