Multimedia device and motion estimation method thereof
US9894367B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 22, 2012 |
| Grant date | Feb 13, 2018 |
| Priority date | — |
| Expiry date | Sep 24, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/521
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A motion estimation method is provided for generating a motion vector of a to-be-generated frame between two continuous reference frames. The method includes the following steps. A candidate motion vector is obtained according to the position of a to-be-generated block of a to-be-generated frame. Two first reference blocks are obtained from the two reference frames by extending the candidate motion vector from the to-be-generated block to the two reference frames, respectively. Two second reference blocks are obtained from the two reference frames by extending the candidate motion vector from one reference frame to another reference frame. Whether the candidate motion vector is valid is determined according to the positions of the two reference blocks obtained in each obtaining step. The corresponding motion vector of the to-be-generated block is determined according to the valid candidate motion vector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.