Mode searching and early termination of a video picture and fast compression of variable length symbols
US9247248B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 18, 2013 |
| Grant date | Jan 26, 2016 |
| Priority date | — |
| Expiry date | Nov 25, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/86
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Mode searching and early termination of a video picture may include determining the cost value of a simple intra-mode prediction of the video picture; determining the cost value of an inter-mode prediction of the video picture; determining a threshold value based on a given quantization parameter (QP); comparing the cost value of the simple intra-mode prediction to the sum of the cost value of the inter-mode prediction and the threshold value; and performing a mode-prediction of the video picture in accordance with the result obtained. Fast compression of variable length symbols may include receiving a variable length symbol with one or more tokens; combining the one or more tokens in the variable length symbol to form a token combination; and determining a bit representation of the token combination in correspondence to a probability threshold associated with the token combination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.