Apparatus and method for optimizing the rate control for multiscale entropy encoding
US6351491B1 · kind B1 · utility
54Cited by
9References
20Claims
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Key dates
| Filing date | Jun 15, 2000 |
| Grant date | Feb 26, 2002 |
| Priority date | — |
| Expiry date | Jun 15, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/146
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for recursively optimizing the rate control of a hierarchical subband coding system that offers spatial, quality and/or complexity scalabilities. The rate control method recursively adjusts the quantizer scale for each layer of a subband tree, i.e., a subband decomposed image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.