Patent ID: 8798316

Claim:
A method of controlling lighting of a space by means of a plurality of controllable light sources, wherein said controlling depends on a position of an object in the space relative to the controllable light sources, the method comprising: receiving an image of at least part of said space; detecting from said image whether light from a selected one of the controllable light sources to points in said space shown at respective image positions in said image has been intercepted by the object; determining information indicative of a direction of the intercepting object relative to the selected one of the controllable light sources from the respective image positions where the light has been detected to be intercepted; updating position information that indicates a position of the object in said space, according to the direction determined from the respective image positions where the light has been detected to be intercepted; enabling to adjust a lighting parameter setting of the controllable light sources dependent on the updated position information; detecting a position of the object in the image; and updating the position information using a combination of the detected position of the object and the direction determined from the respective image positions where the light has been detected to be intercepted.