Computationally-efficient method for estimating image motion
US5742710A · kind A · utility
61Cited by
13References
18Claims
0Family size
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Key dates
| Filing date | Jul 11, 1995 |
| Grant date | Apr 21, 1998 |
| Priority date | — |
| Expiry date | Jul 11, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/10016
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A block-matching method for generating motion vectors performs block matching on successively higher resolution images by refining motion vectors determined in a lower resolution image. At respective higher resolution images, search areas of limited search range are defined via a motion vector associated with corresponding image areas in the immediately lower resolution search. For at least one level of image resolution, the search blocks are overlapped to provide a plurality of search areas of limited search range for performing block matching searches for each block in the next higher resolution level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.