System and method for data compression and decompression in a graphics processing system
US8428375B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 17, 2010 |
| Grant date | Apr 23, 2013 |
| Priority date | — |
| Expiry date | Nov 10, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/91
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Methods and systems for data compression and decompression in a graphics processing system are provided. For example, in at least one embodiment, a method comprises distributing the graphics data values of a pixel block about zero to minimize redundancy, and the pixel block includes a plurality of quadrants. The method further comprises determining whether to encode the distributed graphics data values, and responsive to a determination to encode the distributed graphics data values, encoding at least one graphics data value of one of the quadrants depending on an encoding indicator. The encoding includes determining an entropy parameter and dividing each positive data value by the entropy parameter yielding an entropy part and a noise part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.