Computer graphics pixel processing system

Details Computer graphics pixel processing system Computer graphics pixel processing system

1987-10-16

1989-10-10

Brigance, Gerald L.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340723, 340747, G09G 116

Patent

active

048735159

ABSTRACT:
A line-filtering antialiasing apparatus for a computer graphics display, with a set of parallel pixel processors functioning independently in a line drawing system and with plotting apparatus assigning individual pixels to the processors so as to track to the line. An optimum number of sixteen processors filter proximity data based on the vertical distance from a pixel center to the line center for shading pixels to gray-scale intensity in an area of influence four pixels wide. Line terminations are extended and shaded at the termination area. Pixel values for individual lines are summed to develop a total display image.

REFERENCES:
patent: 4586037 (1986-04-01), Nosener et al.
patent: 4591844 (1986-05-01), Hickin et al.
patent: 4631690 (1986-12-01), Corthout et al.
patent: 4704605 (1987-11-01), Edelson
patent: 4748572 (1988-05-01), Latham
patent: 4796020 (1989-01-01), Budrikis
"Filtering Edges for Gray-Scale Displays", Computer Graphics, vol. 15, No. 3, Aug. 1981, Satish Gupta et al.
"A VLSI Architecture for Updating Raster-Scan Displays", Computer Graphics, vol. 15, No. 3, Aug. 1981, Gupta et al.

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