Apparatus, system, and method for video encoder rate control
US7535959B2 · kind B2 · utility
10Cited by
18References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 16, 2003 |
| Grant date | May 19, 2009 |
| Priority date | — |
| Expiry date | Oct 31, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/61
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A video encoder includes a programmable rate controller. In one embodiment, the programmable rate controller includes a variable bit rate controller, a constant bit rate controller, and an arbitration logic for selecting one of the two outputs. An embodiment of a variable bit rate controller tracks long-term changes to average bit rate. An embodiment of a constant bit rate controller classifies macroblock types, determines a statistical indicator of complexity for each macroblock type, and generates a target bit rate based on estimated complexity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.