Method and apparatus for motion estimation
US7327787B1 · kind B1 · utility
13Cited by
12References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 20, 2000 |
| Grant date | Feb 5, 2008 |
| Priority date | — |
| Expiry date | Jul 26, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/56
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and system of motion estimation for video data compression is disclosed. Individual frames of video data are divided into blocks of pixels. One frame is searched to find a block of pixels that matches intensity with the block of pixels from a second frame. In one embodiment, a motion estimator performs a rhombus shaped search of progressively smaller range for a matching block of pixels. In one embodiment, prediction motion vector is used to reduce the search efforts. In one embodiment, the actual shape of the rhombus can be adjusted to the type of motion expected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.