Multi-parameter motion for efficient prediction in video compression
US8908755B2 · kind B2 · utility
3Cited by
6References
29Claims
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Key dates
| Filing date | Jul 5, 2011 |
| Grant date | Dec 9, 2014 |
| Priority date | — |
| Expiry date | Oct 5, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/70
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Motion Compensated Prediction (MCP) has been a key factor in most advanced video compression schemes. For further reduction in the residual signal energy in B-frames, bidirectional prediction where two motion-compensated signals are superimposed has also been utilized in most prior video coding standards such as MPEG-2 or MPEG-4/AVC. Syntax changes and appropriate motion vector prediction that allows efficient use of multi-parameter MCP is described. The prediction signal is constructed by linearly combining the motion-compensated signals from each parameter (or motion vector).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.