Method and/or apparatus for reducing the complexity of non-reference frame encoding using selective reconstruction
US7324595B2 · kind B2 · utility
60Cited by
3References
20Claims
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Key dates
| Filing date | Sep 22, 2003 |
| Grant date | Jan 29, 2008 |
| Priority date | — |
| Expiry date | Jan 10, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/86
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for implementing non-reference frame prediction in video compression comprising the steps of (A) setting a prediction flag (i) “off” if non-reference frames are used for block prediction and (ii) “on” if non-reference 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.