Coding of a syntax element contained in a pre-coded video signal
US7286710B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 1, 2003 |
| Grant date | Oct 23, 2007 |
| Priority date | — |
| Expiry date | Jul 23, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/463
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for encoding a syntax element contained in a precoded video signal into a coded bit stream, the precoded video signal representing at least one video frame, the syntax element being associated with a predetermined portion of the video frame and being indicative of as to whether the predetermined portion of the video frame is precoded in a first or a second way into the precoded video signal is described. The method comprises investigating as to whether a neighboring portion of the video frame neighboring the predetermined portion is precoded in the first way or the second way, in order to obtain a binary value; assigning one of at least two context models to the predetermined portion of the video frame based on the binary value, wherein each context model is associated with a different probability estimation; and arithmetically encoding the syntax element into the coded bit stream based on the probability estimation with which the assigned context model is associated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.