Interpolation of pixel values and alpha values in a computer graphics display device
US5914725A · kind A · utility
103Cited by
17References
35Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 7, 1996 |
| Grant date | Jun 22, 1999 |
| Priority date | — |
| Expiry date | Mar 7, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T3/4007
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Interpolating a low or medium resolution image to a higher resolution image using a pixel replication and averaging technique. An overlay image having pixels of a first display resolution and a plurality of alpha blending values each indicating the degree of blending with a background image is interpolated to the resolution of the background image. In addition to interpolating pixel values, alpha blending values are themselves interpolated and multiplied by corresponding overlay pixel values prior to being blended with the background image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.