Spatiotemporal prediction for bidirectionally predictive (B) pictures and motion vector prediction for multi-picture reference motion compensation
US8873630B2 · kind B2 · utility
59Cited by
173References
25Claims
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Key dates
| Filing date | Feb 6, 2013 |
| Grant date | Oct 28, 2014 |
| Priority date | — |
| Expiry date | Feb 6, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/87
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Several improvements for use with Bidirectionally Predictive (B) pictures within a video sequence are provided. In certain improvements Direct Mode encoding and/or Motion Vector Prediction are enhanced using spatial prediction techniques. In other improvements Motion Vector prediction includes temporal distance and subblock information, for example, for more accurate prediction. Such improvements and other presented herein significantly improve the performance of any applicable video coding system/logic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.