Video stabilization using content-aware camera motion estimation
US9674439B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 2, 2015 |
| Grant date | Jun 6, 2017 |
| Priority date | — |
| Expiry date | Dec 15, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30221
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Video stabilization is described using content-aware camera motion estimation. In some versions a luminance target frame and a luminance source frame of a sequence of video frames of a scene are received. Motion is extracted from the received luminance target and source frames and the motion is represented as a motion vector field and weights. The weights are divided into a first set of zeros weights for motion in the motion vector field that is near zero motion and a second set of peak weights for motion in the motion field that is not near zero. The zeros weights are compared to a threshold to determine whether there is motion in the scene and if the zeros weights exceed the threshold then selecting a zero motion motion model. A frame of the video sequence is adjusted corresponding to the target frame based on the selected motion model.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.