Cascaded camera motion estimation, rolling shutter detection, and camera shake detection for video stabilization
US9374532B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 1, 2013 |
| Grant date | Jun 21, 2016 |
| Priority date | — |
| Expiry date | Jun 24, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30244
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An easy-to-use online video stabilization system and methods for its use are described. Videos are stabilized after capture, and therefore the stabilization works on all forms of video footage including both legacy video and freshly captured video. In one implementation, the video stabilization system is fully automatic, requiring no input or parameter settings by the user other than the video itself. The video stabilization system uses a cascaded motion model to choose the correction that is applied to different frames of a video. In various implementations, the video stabilization system is capable of detecting and correcting high frequency jitter artifacts, low frequency shake artifacts, rolling shutter artifacts, significant foreground motion, poor lighting, scene cuts, and both long and short videos.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.