The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 03, 2001
Filed:
Jun. 16, 1998
Gianpaolo U. Carraro, Red Bank, NJ (US);
John T. Edmark, New York, NY (US);
James Robert Ensor, Middletown, NJ (US);
Lucent Technologies Inc., Murray Hill, NJ (US);
Abstract
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.