Antialiased imaging with improved pixel supersampling

Computer graphics processing and selective visual display system – Display driving control circuitry – Controlling the condition of display elements

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

345136, G06T 1100

Patent

active

056849397

ABSTRACT:
An image processing system that receives polygonal image data at the direction of a processor and develops antialiased image data for display on a raster scanned display. In particular, the image system includes a scan convertor for converting the polygonal image data into pixel data, which includes pixel screen coordinates and at least one color value for each polygon covered pixel of the pixel data and a supersample coverage mask indicating an extent of polygon coverage within each polygon covered pixel The image system also includes a raster system having at least one image processor for receiving the pixel data for each pixel, for developing a region mask based on the supersample coverage mask, and for storing the color value in association with the region mask as anitialiased display data in an image memory in communication with the image processor based on the pixel screen coordinates. The region mask indicates one or more geographical regions of supersamples within each pixel covered by one or more polygons and indicates a color value stored in the image memory to be assigned to the supersamples in a region. This requires only a single color value for supersamples within a region of a covered pixel to be stored in the image memory. The image system can also be configured to develop and store Z-values, alpha values, stencil values, and texture values for each pixel for storage in the image memory in association with the region mask.

REFERENCES:
patent: 5027292 (1991-06-01), Rossignac et al.
patent: 5123085 (1992-06-01), Wells et al.
patent: 5265214 (1993-11-01), Nitta
patent: 5363475 (1994-11-01), Baker et al.
Carpenter, "The A-Buffer, an Antialiased Hidden Surface Method", Computer Graphics, vol. 18, No. 3, Jul. 1984, pp. 103-108.
Haeberli, et al., "The Accumulation Buffer: Hardware Support for High-Quality Rendering", Computer Graphics, vol. 24, No. 4, pp. 309-313, Aug. 1990.
Schilling, "A New Simple and Efficient Antialiasing With Subpixel Masks", Computer Graphics, vol. 25, No. 4, pp. 133-140, Jul. 1991.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Antialiased imaging with improved pixel supersampling does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Antialiased imaging with improved pixel supersampling, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Antialiased imaging with improved pixel supersampling will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1840672

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.