| 摘要 |
<p>A method for modifying a visible object shot with a television camera, in which method 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 the marking surfaces differs in radiati on from the environment on the basis of a property other than the color of visible light. The marking surface is 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 as the picture shot by the television camera. The relationship between the picture coordinates of the television camera and those of the identifying detector is determined, the areas of the object tha t are visible in the television picture of the object are determined by means of marking surfaces detected, the video signal of the television picture for th e areas corresponding to the object is modified in a predetermined manner and the modified video signal is transmitted.</p> |
