Apparatus and method for palette decoding
US10659794B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 6, 2019 |
| Grant date | May 19, 2020 |
| Priority date | — |
| Expiry date | Mar 6, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/91
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A palette decoding apparatus includes a palette color storage device which stores palette colors, a color index storage device which stores color indices of pixels, and a palette value processing circuit which generates a palette value for each pixel by reading data from the color index storage device and the palette color storage device. A frame is divided into first coding units, and each first coding unit is sub-divided into one or more second coding units. Before a palette value of a last pixel in a first coding unit is generated by the palette value processing circuit, a palette value of a non-last pixel in the first coding unit is generated by the palette value processing circuit and used by a reconstruction circuit of the video decoder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.