Method, medium, and apparatus for encoding and/or decoding video of generating a scalable bitstream supporting two bit-depths
US8848786B2 · kind B2 · utility
1Cited by
3References
24Claims
0Family size
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Key dates
| Filing date | Jun 10, 2008 |
| Grant date | Sep 30, 2014 |
| Priority date | — |
| Expiry date | Apr 20, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/61
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method, medium, and apparatus for encoding and/or decoding video by generating a scalable bitstream supporting at least two bit-depths with forward compatibility, wherein the scalable bitstream comprises a base layer bitstream including a base quantization level and a base quantization parameter corresponding to a base bit-depth, and an enhancement layer bitstream including residue between an extended quantization level and a compensated quantization level that is predicted from the base quantization level, and a refined quantization parameter for refining the difference between an extended bit-depth and the base bit-depth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.