Motion estimation
US6445741B1 · kind B1 · utility
5Cited by
12References
8Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 26, 2001 |
| Grant date | Sep 3, 2002 |
| Priority date | — |
| Expiry date | Apr 26, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/51
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a method of estimating motion vectors from subsampled video data (I), first vectors are estimated (ME, PM2) between an image with a first sub-sampling phase and an earlier image sub-sampled with a second sub-sampling phase, second vectors are estimated (ME, PM1) between an image with a second sub-sampling phase and an earlier image sub-sampled with a first subsampling phase, and the first and second vectors are combined (CD) to obtain output motion vectors (MV).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.