Method and device for coding a video sequence including an improved motion vector calculation
US8743961B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 14, 2010 |
| Grant date | Jun 3, 2014 |
| Priority date | — |
| Expiry date | Dec 20, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/61
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
To code a video sequence, the similarity is calculated (10) between a block of pixels to code of a current image of the sequence and blocks of pixels of a reference image and at least one motion vector per block of the sequence is determined on the basis of at least one similarity value calculated previously. Furthermore, for at least one block of pixels to code, a prediction (16) is determined of at least one motion vector from neighboring motion vectors that have already been calculated; a final motion vector is determined (18) from similarity values calculated previously for the block to code and on the basis of the predicted motion vector; and the block to code is coded (20) using the final motion vector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.