Circuit and method for displaying images using multisamples of non-uniform color resolution
US6614448B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 1998 |
| Grant date | Sep 2, 2003 |
| Priority date | — |
| Expiry date | Dec 28, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T11/001
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A graphics processor displays pixels in an image at non-uniform resolution, using a maximum resolution in the interior of a surface in the image, and a lower resolution at edges. Higher color resolution in the interior eliminates color aliasing that would otherwise be caused if the interior were displayed at the lower resolution. Lower resolution at the edges is not noticeable to the human eye, and allows the graphics processor to use one or more low resolution color signals in generating the displayed image, thereby reducing hardware (e.g. memory locations required to store such signals, and lines required to route such signals). One such processor (not necessarily a graphics processor) includes a resolution reducer and a resolution enhancer that respectively reduce and enhance the resolution of a signal. Specifically, the resolution reducer reduces the resolution of a high resolution signal to generate a low resolution signal. The resolution enhancer enhances the low resolution signal to generate a signal (called “enhanced resolution signal”) having the same number of bits as the high resolution signal. One such resolution reducer simply drops a number of least signif…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.