Video coding and decoding method using weighted prediction and apparatus for the same
US8005137B2 · kind B2 · utility
33Cited by
4References
45Claims
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Key dates
| Filing date | Mar 24, 2006 |
| Grant date | Aug 23, 2011 |
| Priority date | — |
| Expiry date | Feb 3, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/59
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A video coding and decoding method using a weighted prediction and an apparatus for the same are provided. The video coding method includes generating a predicted image for a present block; generating a weighted prediction factor which is a scaling factor of the predicted image that minimizes the difference between the present block and the predicted image; generating a weighted prediction image by multiplying the predicted image by the weighted prediction factor; and coding a residual signal generated by subtracting the weighted prediction image from the present block.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.