Video stabilization system and method
US8520084B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2012 |
| Grant date | Aug 27, 2013 |
| Priority date | — |
| Expiry date | May 8, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20182
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A video stabilization method includes detecting a plurality of feature points of an inputted image frame. Next, a block motion estimation is performed onto the inputted image frame according to the feature points, thereby generating a plurality of block motion vectors corresponding to the feature points. Then, the block motion vectors are converted to a histogram to perform a statistical process. Thereafter, an initial static background motion vector is determined according to a statistic value of the histogram. Thereafter, a Gaussian distribution model and a Maximum a Posteriori (MAP) estimation are adopted to correct the initial static background motion vector to generate a global motion vector. Then, a smoothing process is performed onto the global motion vector to generate a smoothed global motion vector. A video stabilization system is also provided here.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.