Motion estimation using pixel activity metrics
US12132923B2 · kind B2 · utility
0Cited by
7References
20Claims
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Key dates
| Filing date | Aug 27, 2018 |
| Grant date | Oct 29, 2024 |
| Priority date | — |
| Expiry date | Nov 25, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/57
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A processing system estimates motion between blocks of images based on differences in pixel activities between blocks. Blocks having similar pixel activities are more likely to be matches for motion estimation than are blocks having dissimilar pixel activities. Accordingly, the processing system compares pixel activity between current block of a current image and candidate blocks within a search area in the reference image, and estimates motion based on a subset of candidate blocks having a difference in pixel activity from that of the current block within a threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.