Picture-level rate control for video encoding a scene-change I picture
US8879623B2 · kind B2 · utility
12Cited by
3References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 2, 2009 |
| Grant date | Nov 4, 2014 |
| Priority date | — |
| Expiry date | May 29, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/61
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Computer-implemented rate control in encoding one or more video pictures is disclosed. A quantization parameter (QP) to be used for encoding a current picture one of the one or more video pictures is determined using rate control data that takes picture type, picture complexity, and a target bitcount into account in determining the QP. The current picture is encoded into a compressed format using the QP to generate an encoded current picture. The rate control data is updated based on statistical data determined from the encoded current picture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.