Systems and methods for feature tracking
US9208608B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2013 |
| Grant date | Dec 8, 2015 |
| Priority date | — |
| Expiry date | Jun 13, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2210/61
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A computer-implemented method for processing, by a graphical processor unit (GPU), a plurality of images of a user. A plurality of features detected by the GPU in a first image of the plurality of images of the user is selected. Each selected feature includes one or more pixels. In a second image of the plurality of images of the user, a search is performed for the plurality of features selected in the first image. A variance is calculated, on the GPU, for each selected feature found in the second image. The variance indicates a degree to which a portion of the second image varies from a corresponding portion of the first image. The calculated variance is stored in a variance file.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.