Method and apparatus for motion vector estimation
US6782054B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 20, 2001 |
| Grant date | Aug 24, 2004 |
| Priority date | — |
| Expiry date | Aug 18, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/51
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method to enhance motion estimation is provided. The method includes providing a motion estimator, obtaining at least two candidate motion vectors from the motion estimator and applying an error function having a penalty that depends on the position and size of the candidate motion vectors. A device for recursive motion vector estimation having enhanced convergence is also provided. The device includes a vector generator and a best vector selector. The best vector selector comprises means to evaluate candidate motion vectors by applying an error function having at least a penalty that depends on the position and size of the candidate motion vectors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.