Curved surface subdivision apparatus

Details Curved surface subdivision apparatus Curved surface subdivision apparatus

2006-03-21

2006-03-21

Tung, Kee M. (Department: 2671)

Computer graphics processing and selective visual display system

Computer graphics display memory system

Graphic display memory controller

C345S442000, C345S565000

Reexamination Certificate

active

07015917

ABSTRACT:
A subdivision level determination unit (13) in a curved surface subdivision apparatus (10) accepts an input of information about control points that define a shape of a curved surface and determines the subdivision level for the surface. Next, it sets, for a subdivision processing operation control unit (16), a control table corresponding to the determined subdivision level. The subdivision processing operation control unit (16) executes the subdivision processing while controlling a work memory unit (14) and a subdivision processing operation unit (15) based on the set control table.

REFERENCES:
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patent: 5269000 (1993-12-01), Ohuchi
patent: 5408598 (1995-04-01), Pryor, Jr.
patent: 5900884 (1999-05-01), Minami et al.
patent: 6583788 (2003-06-01), Ali-Santosa
patent: 2001-331812 (2001-11-01), None

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