Computational reduction in motion estimation based on lower bound of cost function
US8160148B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 26, 2008 |
| Grant date | Apr 17, 2012 |
| Priority date | — |
| Expiry date | Feb 17, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/557
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for motion estimation comprising the steps of (A) determining whether a cost of encoding one or more prediction parameters for a current search position is less than a current best cost, (B) when the cost of encoding the one or more prediction parameters for the current search position is less than the current best cost, updating the current best cost if the current best cost is greater than or equal to a sum of the cost for encoding the one or more prediction parameters for the current search position and a distortion measurement for the current search position and (C) ending the search when the current best cost is less than or equal to the cost of encoding the one or more prediction parameters for the current search position and less than a minimum cost for encoding one or more prediction parameters for one or more remaining search positions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.