Method and/or apparatus for reducing the complexity of H.264 B-frame encoding using selective reconstruction
US8009734B2 · kind B2 · utility
1Cited by
2References
12Claims
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Key dates
| Filing date | Jul 19, 2007 |
| Grant date | Aug 30, 2011 |
| Priority date | — |
| Expiry date | Apr 24, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/61
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for implementing B-frame prediction in video compression comprising the steps of (A) setting a prediction flag (i) “off” if B-frames are used for block prediction and (ii) “on” if B-frames are not used for block prediction, (B) if the prediction flag is off, generating an output video signal in response to an input video signal by performing an inverse quantization step and an inverse transform step in accordance with a predefined coding specification and (C) if the prediction flag is on, bypassing the inverse quantization step and the inverse transform step.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.