Systems and methods for improving bit rate control of video encoding by correcting for the effects of scene changes and bit stuffing in a video buffer verifier (VBV) buffer model
US7483488B1 · kind B1 · utility
9Cited by
4References
29Claims
0Family size
Assignee
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Key dates
| Filing date | May 30, 2003 |
| Grant date | Jan 27, 2009 |
| Priority date | — |
| Expiry date | Mar 15, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/176
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention is related to methods and apparatus that advantageously improve picture quality in a video encoder, such as an MPEG video encoder. The picture quality of a video encoder can be compromised by bit stuffing. Bit stuffing is a technique that is commonly used when encoding to resolve buffer underrun problems. However, bit stuffing can introduce instabilities in the encoding process. Embodiments of the invention advantageously stabilize the encoding process due to bit stuffing, and thereby improve picture quality.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.