Patent Number: 6,167,143

Title: Monitoring system

Abstract: A monitoring system includes at least one camera (1) for generating a sequence of video images, and a control circuit (2). The control circuit (2) is provided for forming a difference image of two block-structured, consecutive video images and for generating status bits allocated to a stationary or a moving object for each block of a difference image. The control circuit (2) is further used for characterizing, by means of an area mark, contiguous status bits constituting an area and allocated to a moving object for determining an area parameter from the status bits of an area and for triggering an alarm when a predetermined condition of one or more area parameters is reached.

Inventors: Badique; Eric (Nurnberg, DE)

Assignee: U.S. Philips Corporation

International Classification: G06T 7/20 (20060101); G08B 13/194 (20060101); G06T 007/20 ()

Expiration Date: 12/26/2017