Image decoding apparatus and image coding apparatus wth parallel decoding
US9042457B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 5, 2009 |
| Grant date | May 26, 2015 |
| Priority date | — |
| Expiry date | May 9, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/40
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image decoding apparatus which decodes, in parallel, a coded stream having processing order dependency includes: a slice data predecoding unit which predecodes, on a macroblock group basis, macroblock groups included in the coded stream to generate macroblock decoding information necessary for decoding other macroblock groups; and a first macroblock decoding unit and a second macroblock decoding unit each of which decodes a corresponding one of macroblock groups included in the coded stream in parallel. Each of the macroblock decoding units, when decoding the corresponding one of macroblock groups, uses the macroblock decoding information that has been generated for the other macroblock group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.