System and method for direct motion vector prediction in bi-predictive video frames and fields
US7020200B2 · kind B2 · utility
58Cited by
9References
27Claims
0Family size
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Key dates
| Filing date | Aug 13, 2002 |
| Grant date | Mar 28, 2006 |
| Priority date | — |
| Expiry date | Jul 2, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/56
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention is a low complexity method for reducing the number of motion vectors required for bi-predictive frames or fields in digital video streams. The present invention utilizes the motion vectors located in the corner blocks of a co-located macroblock, rather than all motion vectors, when determining the motion vectors of a current block. This results in reduced resources in the computation of direct motion vectors for a bi-predictive frame or field.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.