Context adaptation within video coding modules
US8861593B2 · kind B2 · utility
5Cited by
9References
31Claims
0Family size
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Inventor
Key dates
| Filing date | Mar 15, 2011 |
| Grant date | Oct 14, 2014 |
| Priority date | — |
| Expiry date | Dec 16, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/85
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Context adaptive video coding is described in which encoding and decoding relies on deriving context adaptive coding tools, which can be applied within a coder (encoder and/or decoder) to one or more coding processes. A discontinuity of the block is identified, and a context feature extracted having directionality and location of discontinuity. Coding then uses the context adaptive tools to enhance coding efficiency, without the need of additional side information. Context adaptation according to invention can be applied such as to inter prediction, intra prediction, transform, interpolation filtering, and/or scanning.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.