Macro-block video stream encoding
US8218642B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 10, 2009 |
| Grant date | Jul 10, 2012 |
| Priority date | — |
| Expiry date | Sep 22, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/61
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A video stream encoding apparatus and method therefore is herein described. The video stream encoding apparatus includes a divider for dividing a frame in a video stream into a plurality of processing units, each processing unit including a plurality of macro-blocks; and an encoder for encoding the plurality of macro-blocks in each processing unit in parallel. The same quantization parameters are used for respective macro-blocks in the same processing unit in the quantization of the encoder. By the apparatus and the method of the invention, dependencies between macro-blocks are broken, and the precision of high rate controlling is kept while encoding the respective macro-blocks in parallel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.