Method of rendering a graphics image

Details Method of rendering a graphics image Method of rendering a graphics image

2007-10-30

2007-10-30

Chauhan, Ulka (Department: 2628)

Computer graphics processing and selective visual display system

Computer graphics processing

Graphic manipulation

C345S419000, C345S420000, C345S619000, C345S424000, C345S423000, C600S416000, C600S407000

Reexamination Certificate

active

10451485

ABSTRACT:
A method of rendering a graphics image in which rendering is only carried out in a region to be changed is disclosed. In a preferred form the image includes a plurality of objects and the method comprises the steps of: determining if each object has changed so that the object is required to be displayed differently in a subsequent frame; determining a bounding region of each changed object in the subsequent frame; determining a bounding region of each changed object in a frame prior to the subsequent frame; and combining the bounding regions to form an aggregate region and rendering the image only within the aggregate region.

REFERENCES:
patent: 6487565 (2002-11-01), Schechter et al.
patent: 6750841 (2004-06-01), Itoh et al.
patent: 2002/0089508 (2002-07-01), Sowizral et al.
patent: 2002/0190994 (2002-12-01), Brown
“Performance of a Software MPEG Video Decoder”, K. Patel et. al., 1993.
“Adventures in Building the Stony Brook Video Server”, M. Vernick et. al., 1996.

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