Method and device for generating a predicted value of an image using interpolation and motion vectors
US9324165B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 10, 2013 |
| Grant date | Apr 26, 2016 |
| Priority date | — |
| Expiry date | Jul 17, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/577
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and device for generating a predicted value of image that are mostly used to generate a predicted value of a current block during image encoding or decoding. The method includes: determining a searching scope, wherein multiple motion vectors are included in the searching scope; performing up-sampling interpolations on first reference blocks, corresponding to the motion vector in the searching scope, in a reference image of the current block by using a first filter to obtain up-sampled first reference blocks; by using the up-sampled first reference blocks, obtaining at least one candidate motion vector corresponding to the current block; performing up-sampling interpolations on second reference blocks, corresponding to the at least one candidate motion vector, in the reference image of the current block by using a second filter to obtain up-sampled second reference blocks; combining the up-sampled second reference blocks to obtain a predicted value of the current block.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.