Computer graphics processing and selective visual display system – Computer graphics processing – Attributes
Reexamination Certificate
2006-01-03
2006-01-03
Yang, Ryan (Department: 2672)
Computer graphics processing and selective visual display system
Computer graphics processing
Attributes
C382S269000
Reexamination Certificate
active
06982723
ABSTRACT:
A method of eliminating unwanted steps at edges in image or graphic representations in the line raster, in particular in on-line operation having the steps:a) Application of an edge operator to an image portion for coarsely ascertaining at least one rastered edge configuration,b) Determining the position of at least a first pixel from the amount of those pixels which form the rastered edge configuration or adjoin said rastered edge configuration,c) Approximation of a straight line for ascertaining a probable configuration of the unrastered image edge in the proximity of the first pixel,d) Ascertaining a criterion from the approximation straight line and the position of the first pixel for mixing a color X to the color C in the first pixel considered, ande) Mixing the ascertained color X to the color C in the first pixel considered.
REFERENCES:
patent: 4704605 (1987-11-01), Edelson
patent: 4835532 (1989-05-01), Fant
patent: 5029108 (1991-07-01), Lung
patent: 5140315 (1992-08-01), Edelson et al.
patent: 5264838 (1993-11-01), Johnson et al.
patent: 5388166 (1995-02-01), Onozawa
patent: 5555360 (1996-09-01), Kumazaki et al.
patent: 5559530 (1996-09-01), Yamashita et al.
patent: 5625768 (1997-04-01), Dye
patent: 5668940 (1997-09-01), Steiner et al.
patent: 5742277 (1998-04-01), Gossett et al.
patent: 5748178 (1998-05-01), Drewry
patent: 5903276 (1999-05-01), Shiraishi
patent: 5940080 (1999-08-01), Ruehle et al.
patent: 6034700 (2000-03-01), Rumph et al.
patent: 6226400 (2001-05-01), Doll
patent: 6229521 (2001-05-01), Yip
patent: 6339479 (2002-01-01), Kishimoto
patent: 6396947 (2002-05-01), Doll
E. Catmull, “A Hidden-Surface Algorithm with Antialiasing”, Aug. 78 (on order).
L. Carpenter, “The A-Buffer, An Antialiased Hidden Surface Method”, Computer Graphics 12, 84 (on order).
A. Schilling, “A processor pipeline for use in graphic data processing,” Faculty for Information Technology at the Eberhard-Karls-University at Tubingen, Jun. 15, 1994, 28 pages.
P. Baudisch, “Development and implementation of an efficient, hardware-close antialiasing algorithm,” Faculty of Information Technology of the Darmstadt College of Technology—Institute for Information Management and Interactive Systems Graphic-Interactive Systems, Sep. 1994, Darmstadt, Germany, 49 pages.
E. Catmull, “A Hidden-Surface Algorithm with Antialiasing”, Computer Graphics, Aug. 78. pp. 6-10.
L. Carpenter, “The A-buffer, An Antialiased Hidden Surface Method”, Computer Graphics, vol. 18, No. 3, Jul. 1984, pp. 103-108.
A. Schilling et al., “EXACT: Algorithm and Hardware Architecture for an Improved A-Buffer”, Computer Graphics Proceedings, Annual Conference Series, 1993, pp. 85-91.
Christie Parker and Hale, LLP
GMD-Forschungszentrum Informationstechnik GmbH
Yang Ryan
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