Apparatus and method for object based rate control in a coding system
US7372903B1 · kind B1 · utility
15Cited by
27References
39Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 22, 1999 |
| Grant date | May 13, 2008 |
| Priority date | — |
| Expiry date | Sep 22, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/20
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for selecting a quantizer scale for each object within a frame to optimize the coding rate is disclosed. A quantizer scale is selected for each region or “object” 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.