Perimeter surveillance system

Details Perimeter surveillance system Perimeter surveillance system

G - Physics

08

B

350/32

G08B 13/18 (2006.01) G06T 7/20 (2006.01) G08B 13/194 (2006.01)

Patent

CA 1116286

Abstract of the Disclosure Disclosed is an automatic video intrusion detection syste. The system monitors a given area such as between two parallel fences. The image of the given area is divided into an array of cells each approximately equal in size to the image of a man. The video for each cell is integrated, digitized and stored in an array. Changes in cell values arc detected and tracked so that changes in, say, 3 adjacent cells in a given direction, indicate an intruder. A microcomputer implements a tracking algorithm. Filtering discriminates against light level changes. The system is simpler than a known one which analyzes grey values of thousands of points in a video field.

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