Display techniques for three-dimensional virtual reality

Details Display techniques for three-dimensional virtual reality Display techniques for three-dimensional virtual reality

H - Electricity

04

N

H04N 5/272 (2006.01) G06T 15/20 (2006.01) H04N 13/02 (2006.01)

Patent

CA 2270734

A limitation of a three-dimensional world in which objects in the distance may be represented in only two dimensions as a video on a screen occurs when a computer graphic object represented by computer graphics, e.g., in front of, to the side, above, or below the video screen, undergoes a trajectory that takes it to a location in the world that is not represented as computer graphics, but instead is within the field represented by the video, because such an object would disappear from view by the viewer. This limitation is overcome by having by determining when a computer graphic object undergoes a trajectory that takes it to a location in the world that is not represented as computer graphics, but instead is within the field represented by the video, and representing such an object as computer graphics in front of the screen to which at least one perspective transformation is applied, the perspective transformation being at least a function of the position at which the object is actually located.

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