Methods and systems for matching keypoints and tracking regions between frames of video data
US9002055B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 13, 2008 |
| Grant date | Apr 7, 2015 |
| Priority date | — |
| Expiry date | Mar 28, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30232
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method (100) and system (300) is described for processing video data comprising a plurality of images. The method (100) comprising obtaining (104, 106), for each of the plurality of images, a segmentation in a plurality of regions and a set of keypoints, and tracking (108) at least one region between a first image and a subsequent image resulting in a matched region in the subsequent image taking into account a matching between keypoints in the first image and the subsequent image. The latter results in accurate tracking of regions. Furthermore the method may optionally also perform label propagation taking into account keypoint tracking.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.