Method and apparatus for motion vector coding with global motion parameters
US7050500B2 · kind B2 · utility
8Cited by
15References
29Claims
0Family size
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Key dates
| Filing date | Aug 23, 2001 |
| Grant date | May 23, 2006 |
| Priority date | — |
| Expiry date | Sep 2, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/82
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A global motion vector coding scheme is used for coding or decoding an image. Global motion parameters are associated with a current image frame. Local motion vectors are derived from the global motion parameters for individual macroblocks in the current image frame. The local motion vectors are then used to identify reference blocks in a current reference frame. The reference blocks are then used to either encode or decode the macroblocks in the current image frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.