Electronic circuit and electronic device performing motion estimation through hierarchical search
US10893292B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 8, 2019 |
| Grant date | Jan 12, 2021 |
| Priority date | — |
| Expiry date | Jul 8, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/182
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An electronic circuit includes a block determinator, a candidate selector, and a motion vector generator to perform motion estimation. The block determinator determines a current block and candidate blocks with regard to each of decimated images generated from an original image, wherein the block determinator determines first candidate blocks based on a location of the current block without a full search for all pixels with regard to a first decimated image of the lowest resolution. The candidate selector selects second candidate blocks which are some of the first candidate blocks with regard to a second decimated image of the highest resolution, such that the block determinator determines the second candidate blocks with regard to the original image. The motion vector generator generates a motion vector for the current block based on one reference patch determined from reference patches indicated by candidate motion vectors of the second candidate blocks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.