Apparatus and method for macroblock based rate control in a coding system
US6690833B1 · kind B1 · utility
24Cited by
13References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 18, 1998 |
| Grant date | Feb 10, 2004 |
| Priority date | — |
| Expiry date | Jul 19, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/152
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for selecting a quantizer scale for each macroblock within a frame to optimize the coding rate is presented. A quantizer scale is selected for each macroblock within each frame such that the target bit rate for the frame is achieved while maintaining a uniform visual quality over the entire frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.