Fast block mode determining method for motion estimation, and apparatus thereof
US7764740B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 9, 2005 |
| Grant date | Jul 27, 2010 |
| Priority date | — |
| Expiry date | May 27, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/61
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A fast block mode determining method for motion estimation, and an apparatus thereof. A cost of motion estimation for an input image frame is predicted by Kalman filtering, and one block mode is selected from a plurality of block modes. A cost for the motion estimation of the input image frame is calculated. The predicted cost and the calculated cost are compared with each other, and the block mode for performing the motion estimation is determined. In an H.264 moving picture encoding device, the operation load is reduced and time wasted for calculation is shortened, because it is not necessary to perform the motion estimation for all the block modes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.