Human object surveillance using size, shape, movement

Details Human object surveillance using size, shape, movement Human object surveillance using size, shape, movement

G - Physics

08

B

G08B 13/196 (2006.01) G06T 7/00 (2006.01) G06T 7/20 (2006.01) G08B 13/194 (2006.01) H04N 7/18 (2006.01)

Patent

CA 2393932

A method of monitoring monitored locations by means of a monitoring system. The monitoring system comprises a plurality of monitoring modules (1), each of which has a light-sensitive sensor for monitoring the monitored locations. The monitor-ing system further comprises a remote monitoring station (3) with an operator. The method comprises the steps of recording by each of the monitoring modules (1) an image of the monitored location associated with the monitoring module (1), extracting in each of the monitoring modules an area in the recorded image that differs from a reference image, and extracting in each of the monitoring modules an object from the area. The method further comprises classifying in each of the monitoring modules (1) the object based on characteristics, such as a characteristic of the type: size, shape and/or movement history, associated with the object, if the object is a human alarm object, and if the object is classified as a human alarm object, transmitting data representing the area in a stylized way to the monitoring station (3), and recreating said transmitted data in the monitoring station (3) and displaying the same to the operator for verification of the human alarm object.

Cette invention concerne une technique et un système de surveillance permettant de contrôler certains emplacements. Ce système se compose d'une pluralité de modules de surveillance (1) qui comportent chacun un détecteur photosensible permettant de surveiller la zone correspondante. Le système de surveillance est assorti d'un poste de surveillance à distance (3) avec un préposé. La méthode consiste à : enregistrer, au moyen de chacun des modules, une image de l'emplacement surveillé correspondant ; à extraire, au niveau de chacun des modules de surveillance, une zone de l'image enregistrée qui diffère d'une image de référence et, toujours au niveau des différents modules, à extraire un objet de la zone considérée. La méthode consiste également à : classer dans chacun des modules de surveillance l'objet en fonction de diverses caractéristiques telles que taille, forme et/ou mouvements si l'objet de l'alarme est de nature humaine et, si telle est le cas, à transmettre des données représentant la zone de manière stylisée au poste de surveillance (3), dans laquelle lesdites données transmises sont recréées et affichées à l'intention du préposé à des fins de contrôles de l'objet d'alarme de nature humaine.

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