Patent ID: 7009635
Filing Date: 2006-03-07
Classification: A63B,H04N

Abstract:
1. Method for modifying a visible object shot with a television camera, characterized in that the object is marked by means of one or more marking surfaces disposed in the area of the object or in its vicinity, said marking surfaces being identifiable on the basis of radiation differing from other radiation in the area being shot, at least one of said marking surfaces differing in radiation from the environment on the basis of a property other than the color of visible light, the marking surfaces, which are visible in the picture, are identified using at least one identifying detector which is separate from the detectors of the television camera and by means of which the object is shot substantially from the same shooting direction with the television camera, the location, shape and size of the areas of the object that are visible in the television picture are determined by the known relationship between the picture coordinates of the television camera and those of the identifying detector or detectors, the video signal of the television picture for the areas corresponding to the visible areas of the object is modified in a predetermined manner.