Abstract: Methods, apparatuses, and systems for sketch-based design, construction, and modification of three-dimensional geometry, including a computer drawing system, comprising a two dimensional input device, a display device, and a processor connected to the input device and the display device. The processor includes memory containing computer readable instructions which, when executed, cause the processor to define a three dimensional shape model, receive from the two dimensional input device an input indicative of a two dimensional hand drawn element, map the two dimensional hand drawn element to a corresponding portion of the three dimensional shape model, and modify the corresponding portion of the three dimensional shape model to resemble the two dimensional hand drawn element.

Abstract: An immersive video system includes a display, a sensor that provides information about a user's location relative to the display, a projector capable of projecting images onto the user, and a processor in communication with the display, the sensor, and the projector. The processor manipulates the images projected onto the user based on user location data from the sensor.

Abstract: Natural 3D images are created on a standard television screen or a movie screen which can be viewed without requiring the use of special glasses or viewing devices. For television, the incoming 2D signal and a delayed 2D signal are supplied simultaneously to the input of the television receiver to produce a 3D image on the screen. For motion pictures, the film and a staggered film portion separated by a predetermined number of frames are fed simultaneously and in opposite directions through a film gate of a projector and moved intermittently therein in a predetermined sequence to produce a 3D image on the motion picture screen.