Title:
A GRAPHICS SYSTEM HAVING A SUPER-SAMPLED SAMPLE BUFFER WITH HOT SPOT CORRECTION, EDGE BLENDING, EDGE MATCHING, DISTORTION CORRECTION, AND CHROMATIC DISTORTION COMPENSATION
Document Type and Number:
WIPO Patent Application WO2001071665
Kind Code:
A3
Abstract:
A graphics system comprises pixel calculation units and a sample buffer which stores a two-dimensional field of samples. Each pixel calculation unit selects positions in the two-dimensional field at which pixel values (e.g. red, green, blue) are computed. The pixel computation positions are selected to compensate for image distortions introduced by a display device and/or display surface. Non-uniformities in a viewer's perceived intensity distribution from a display surface (e.g. hot spots, overlap brightness) are corrected by appropriately scaling pixel values prior to transmission to display devices. Two or more sets of pixel calculation units driving two or more display devices adjust their respective pixel computation centers to align the edges of two or more displayed images. Physical barriers prevent light spillage at the interface between anytwo of the display images. Separate pixel computation positions may be used for distinct colors to compensate for color distortions.
Inventors:
DEERING MICHAEL F
Application Number:
PCT/US2001/008586
Publication Date:
January 16, 2003
Filing Date:
March 16, 2001
Export Citation:
Assignee:
SUN MICROSYSTEMS INC (US)
International Classes:
G06T3/00; G06T5/00; (IPC1-7): G06T5/00
Foreign References:
| US5465121A | 1995-11-07 | |||
| US5933132A | 1999-08-03 | |||
| US5231481A | 1993-07-27 | |||
| US4731865A | 1988-03-15 |
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