Method of CABAC significance MAP decoding suitable for use on VLIW data processors
US7813567B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 26, 2007 |
| Grant date | Oct 12, 2010 |
| Priority date | — |
| Expiry date | Aug 4, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/91
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
This invention decodes a next significance symbol using a selected context. The invention operates in a loop for each symbol decode for a whole block until the number of decoded map elements reaches a maximum number of coefficients for the block type or a last significant coefficient marker is decoded updating loop variables accordingly. This invention counts the number of decoded significance symbols indicating a significant coefficient and stores the locations of such significant coefficients in an array. An embodiment of this invention estimates the number of significant coefficients in a block and selects the inventive method or a prior art decode method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.