H.264 decoding method for fast CAVLC
US7539346B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 12, 2005 |
| Grant date | May 26, 2009 |
| Priority date | — |
| Expiry date | Sep 28, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/91
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
There is provided a H.264 decoding method for fast CAVLC, which searches multiple tables effectively and fast to obtain coefficients for CAVLC blocks within the shortest period of time such that a decoder with excellent efficiency can be designed for low frequency. The H.264 decoding method for fast CAVLC includes: a first step of obtaining the number of ‘0’s including the firstly inputted bit ‘0’ to the bit ‘0’ right before the bit ‘1’ firstly appearing to obtain a row index value; a second step of obtaining a fix index indicating the first bit ‘1’; a third step of obtaining a column index indicating a bit stream other than the row index and fix index; and a fourth step of obtaining a total coefficient and trailing ones T1s corresponding to the row index value and the column index value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.