Abstract: When any observer receives an image of a scene having the same relative size, shape and location on the retina of each of his two eyes at any instant and the image of the scene has some component of horizontal motion in any direction, the image viewed is three dimensional. If the motion occurs, all scene-object points are spatially located in playback since all of the original ray angles between camera and scene points are reproduced for both eyes by the ray cross-overs at the scene image points. When successive frames are presented, the brain cognizes the motion in linking the frames by persistence of vision. For the brain to perceive an item as moving it must connect these frames, but because of intersecting rays coming from any spatial location in successive frames, the brain cannot connect the frames without also locating the points in space.

Abstract: When any observer in the audience, viewing either a television or a motion picture by our invention, receives an image of a given scene having the same relative size, shape and location on the retina of each of his two eyes at any instant and that image of the scene is stationary, the image is flat and resides at infinity. When, however, the image of the scene has some component of horizontal motion in any direction due to either motion of the camera, motion of scene objects (or both), during the acquisition of the moving scene, the image viewed is three dimensional. The reason for this is that if the motion occurs, all scene-object points are proportionally spatially located in playback since all of the original ray angles between camera and scene points are reproduced for both eyes by the ray cross-overs at the scene image points in the same proportionally relative positions as the original object points.

Abstract: My invention relates to photographing scenes with standard motion picture photographic equipment in which there is a relative motion between the scene and camera with the purpose of stereoscopic viewing of the motion picture or stationary reproduction without the need for viewing aids at the eyes. The system is compatible with scenes photographed without this relative motion, where with the reproduction is viewed in conventional two dimensions.The surface of the processed film (or other appropriate media) is arrayed in a vertical plane and constrained to move horizontally around a segment of a circle of radius 2R. At the center of the film circle is a film motion compensator which can be a multi faceted mirror drum of radius R. The film is rapidly scanned about the center of this circle by a light source directed through the film and toward the center of the mirror drum.