Method and system for motion estimation in digital imaging applications
US8120659B2 · kind B2 · utility
2Cited by
10References
11Claims
0Family size
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Key dates
| Filing date | May 22, 2008 |
| Grant date | Feb 21, 2012 |
| Priority date | — |
| Expiry date | Sep 20, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/6811
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and system for estimating global motion in digital imaging applications with confidence level filtering. Motion search yields a plurality of vectors describing the movement of feature blocks from one frame to another. A confidence level is assigned to each motion vector. Based on the confidence levels, vectors are given more or less weight when estimating global motion. High-confidence vectors are given more weight than low-confidence vectors. Embodiments for estimating both the magnitude of global motion and the magnitude and direction of global motion are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.