Motion estimator
US8406304B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 8, 2007 |
| Grant date | Mar 26, 2013 |
| Priority date | — |
| Expiry date | May 21, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/61
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A motion estimator includes a shape, address and vector generator to produce control signals according to a selected size and shape of a search area comprising scan lines. A variable delay reads reference image data of a frame in which a matching macroblock is sought from a store under control of a variable delay control signal from the signal generator to align a current serial input stream of a current scan line with a serial input stream of an immediately preceding scan line. The aligned reference image pixel data is matched against pixel data of a current macroblock using a vector from the signal generator to produce a score representing a quality of the match. A best score together with the corresponding best vector is recorded and the best vector output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.