Macroblock homogeneity analysis and inter mode prediction
US8170102B2 · kind B2 · utility
13Cited by
15References
10Claims
0Family size
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Key dates
| Filing date | Dec 19, 2005 |
| Grant date | May 1, 2012 |
| Priority date | — |
| Expiry date | Mar 1, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/523
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An inter mode for encoding a video macroblock is selected. An initial analysis on the macroblock homogeneity is performed to quickly reduce the number of inter modes for which motion estimation and rate distortion calculation are to be performed. An inter mode is selected based on these calculations and sub-pixel motion estimation, at various sub-pixel interpolation granularities, is performed only on the selected inter mode. Sub-pixel motion estimation may be skipped for macroblocks that exhibit relatively low distortion at the integer pixel level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.