FIELD: information technology.
SUBSTANCE: several image detecting devices repeatedly record data related to several simultaneous presentations of events occurring within an area. More specifically, at least one stereopair of cameras (101a, 101b) repeatedly record data of stereoimages (D1', D1"), on the basis of which a data processor (110) repeatedly determines the corresponding position of each of the objects. The first camera (101a) and the second camera (101b) in the stereopair are at a basic distance from each other. Also the cameras (101a, 101b) are essentially parallel and are directed towards the area such that, the first image plane of the first camera (101a) records part of the area which considerably overlaps part of the area recorded by the second image plane of the second camera (101b).
EFFECT: reliable and efficient method of tracking movement of objects in a given area based on image analysis.
15 cl, 9 dwg
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