Motion vector coding mode selection method and coding mode selection apparatus and machine readable medium using the same
US8416855B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 27, 2009 |
| Grant date | Apr 9, 2013 |
| Priority date | — |
| Expiry date | Oct 2, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/53
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A coding mode selection method for selecting a coding mode for motion vector estimation is disclosed. The method includes the following steps. First, a first coding mode is selected to perform motion vector estimation for a macroblock having M sub-blocks. M motion vectors corresponding to the M sub-blocks are separately calculated. It is determined whether correlations for the M motion vectors match to a predetermined condition. If not, the first coding mode is selected and the M motion vectors are utilized to perform a motion vector estimation; and if so, a second coding mode is selected and the N motion vectors corresponding to the second coding mode are utilized to perform the motion vector estimation, wherein the N motion vectors are generated by using the M motion vectors and 1≦N<M.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.