Efficient spatial scalable compression schemes
US7146056B2 · kind B2 · utility
17Cited by
3References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 23, 2002 |
| Grant date | Dec 5, 2006 |
| Priority date | — |
| Expiry date | Sep 30, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/61
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus is disclosed for enhancing the efficiency of spatial scalable compression schemes by lowering the bitrate of the enhancement layer. The complete image is used during motion estimation and/or motion compensation in the enhancement layer by inserting both the reconstructed video stream from the base layer and the input video stream into the motion estimation unit or both the motion estimation unit and the motion compensation unit in the enhancement layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.