System and method for surveilling a scene

Details System and method for surveilling a scene System and method for surveilling a scene

H - Electricity

04

N

H04N 7/18 (2006.01) G08B 13/196 (2006.01) H04N 5/262 (2006.01) G06T 7/20 (2006.01)

Patent

CA 2544744

A method for surveilling a scene using a single camera, the scene including a first zone and a second zone, the first zone being associated with a first predetermined alarm action to be performed upon movement being detected within the first zone, the second zone being associated with a second predetermined alarm action to be performed upon movement being detected within the second zone. The method includes: - acquiring a first image of the scene using the camera, the first image including first image pixels representing both the first zone and the second zone; - after the acquisition of the first image, acquiring a second image of the scene using the camera, the second image including second image pixels representing both the first zone and the second zone; - detecting if a movement occurred within the first zone between the acquisition of the first and second images by comparing the first image pixels representing the first zone to the second image pixels representing the first zone; - detecting if a movement occurred within the second zone between the acquisition of the first and second images by comparing the first image pixels representing the second zone to the second image pixels representing the second zone; - upon the detection of a movement in the first zone, performing the first predetermined alarm action; and - upon the detection of a movement in the second zone, performing the second predetermined alarm action.

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