Computer graphics pixel processing system
US4873515A · kind A · utility
58Cited by
6References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 16, 1987 |
| Grant date | Oct 10, 1989 |
| Priority date | — |
| Expiry date | Oct 16, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T11/203
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.