A video counting system detects people moving through a counting zone. It may be, though, that a person enters the counting zone and then stands still. If they stand still for long enough, the system will consider them to be part of the background. The length of time a person can stand still and yet be counted is called the Freeze Time.
With Retail Sensing systems you can specify a different freeze time for each camera.
Find out more about extremely accurate people counting systems using existing CCTV.
10 Stocks Street, Manchester, M8 8QG, UK