A method of providing a visual representation of a scene to a participant
in a studio is provided, wherein the studio is arranged to be viewed by a
camera to provide a camera image and has at least a portion of a
background object arranged to be keyed out of the camera image by a
keying process. The method includes obtaining an estimate of the
viewpoint of the participant; rendering an image of the scene based on
the viewpoint of the participant; and projecting at least a portion of
the rendered image onto the background object to provide a projected
image portion visible to the participant. The projected image portion is
projected so as to be keyed out of the camera image by the keying
process.