Method of and device for coding a video image sequence in coefficients of sub-bands of different spatial resolutions
US8204111B2 · kind B2 · utility
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Key dates
| Filing date | Jun 28, 2005 |
| Grant date | Jun 19, 2012 |
| Priority date | — |
| Expiry date | Aug 25, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/63
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A video image sequence including coefficients of frequency sub-bands with different spatial resolutions is coded. A data stream including at least one restitution level (Niv N−2, Niv N−1, Niv N) is formed. The restitution levels have coefficients of frequency sub-bands whose spatial resolution equals a spatial resolution of the restitution level. There are inserted, in at least one restitution level, coefficients of frequency sub-bands with a spatial resolution higher than the spatial resolution or resolutions of the restitution level.
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