Two-dimensional palette coding for screen content coding
US10055189B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 2, 2015 |
| Grant date | Aug 21, 2018 |
| Priority date | — |
| Expiry date | Apr 14, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/90
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Video data, e.g., screen content video data may be palette coded. A palette table including one or more color indices may be produced. A color index may correspond to one color. A palette index map may be created that maps one or more pixels of the video data to a color index in the palette table, or a color that may be explicitly coded. A palette index map prediction data may be generated that includes data that indicates values in the palette index map associated with at least some portions of the video data that are generated in a traverse scan order in which a scan line is scanned in an opposite direction of a preceding parallel scan line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.