A VIDEO ANALYSIS DEVICE AND A METHOD OF OPERATING A VIDEO ANALYSIS DEVICE

摘要

A video analysis device (3), configured to receive video sequences of an environment within a field of view (8) of a camera (7), and to analyze the video sequences as regards behavior of persons present in the video sequences. The video analysis device is configured to determine a footprint (15) of at least one light source (9) illuminating an area within the field of view with coded light. The coded light carries a unique light source identification for each light source. Furthermore, the video analysis device is configured to receive association information associating at least one object (13) with the light source identification of each light source illuminating each object, and to determine an analysis area (17) within the field of view where said analysis of the video sequences is to be done. The determination is done for each object, and by means of the association information.