Image stabilization
US9305362B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2014 |
| Grant date | Apr 5, 2016 |
| Priority date | — |
| Expiry date | Jul 4, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20016
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method relating generally to image processing is disclosed. In such a method, an image is preprocessed for noise suppression and edge detection with filters. The image is hierarchically decomposed to provide an image pyramid. The hierarchical decomposition includes successively down-scaling the image to provide different resolutions of the image corresponding to levels of the image pyramid. The image and the different resolutions of the image provide a set of images. A scene analysis of the set of images is performed. The performing of the scene analysis includes determining qualifications of blocks of the set of images for feature tracking. A subset of the blocks determined to be qualified for the feature tracking is selected. Motion estimation is performed on the subset of the blocks. The motion estimation is performed using a hierarchical set of motion estimation engines corresponding to levels of the image pyramid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.