Content adaptive motion compensation filtering for high efficiency video coding
US8761245B2 · kind B2 · utility
48Cited by
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13Claims
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Key dates
| Filing date | Dec 21, 2010 |
| Grant date | Jun 24, 2014 |
| Priority date | — |
| Expiry date | Jun 25, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/86
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system and method for adaptive motion filtering to improve subpel motion prediction efficiency of interframe motion compensated video coding is described. The technique uses a codebook approach that is efficient in search complexity to look-up best motion filter set from a pre-calculated codebook of motion filter coefficient set. In some embodiments, the search complexity is further reduced by partitioning the complete codebook into a small base codebook and a larger virtual codebook, such that the main calculations for search only need to be performed on the base codebook.
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