Patent US 8,428,754

A system, method and apparatus for controlling an electrical device are provided. At least one image of at least one moving entity is processed to determine when the moving entity (or entities) is at least one of entering and exiting a monitored area, and to determine when the moving entity (or entities) comprises at least one triggering shape. When the moving entity (or entities), comprising at least one triggering shape, is at least one of entering and exiting the monitored area, control of the electrical device is triggered and a counter for counting triggering shapes present in the monitored area is triggered. When the moving entity (or entities), comprising at least one triggering shape, exits the monitored area, the counter decrements by the number of triggering shapes and the electrical device is triggered to a state different from a present state when the counter falls below a threshold number.