Global motion vector calculation using phase plane correlation
US8942503B1 · kind B1 · utility
1Cited by
5References
7Claims
0Family size
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Key dates
| Filing date | Nov 14, 2013 |
| Grant date | Jan 27, 2015 |
| Priority date | — |
| Expiry date | Nov 14, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/527
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of performing motion compensation includes dividing at least one frame of image data into blocks, performing phase plane correlation to determine a correlation surface for each block between a first frame and a second frame, using the correlation surfaces for each block in the first frame to produce a global correlation surface for a first frame, using the global correlation surface to produce a refined correlation surface, selecting peaks in the refined correlation surface, and perform sub-pixel motion vector calculations to produce global motion vectors using the peaks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.