Fast implementation of context selection of significance map
US8634669B2 · kind B2 · utility
1Cited by
4References
8Claims
0Family size
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Key dates
| Filing date | Jan 12, 2012 |
| Grant date | Jan 21, 2014 |
| Priority date | — |
| Expiry date | Jun 16, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/13
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A fast implementation context selection of a significance map includes caching the significance of each coefficient in a buffer, storing an extended significance map in an extended buffer and updating the extended significance map after the significance of a transform coefficient is determined by the encoder or the decoder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.