Video object tracking using multi-path trajectory analysis
US9147261B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 12, 2013 |
| Grant date | Sep 29, 2015 |
| Priority date | — |
| Expiry date | Mar 22, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30241
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for obtaining trajectory of an object using multi-path tracking mode is provided. The method includes marking a portion of the object in a frame of a video, obtaining consecutive frames in the video, and tracking the marked portion of the object in consecutive frames by estimating sum of absolute difference. The method further includes comparing the sum of absolute difference to a sum of absolute difference threshold, switching between the multi-path tracking mode and single path tracking mode based on the comparison of the sum of absolute difference to the sum of absolute difference threshold, and obtaining trajectory of the marked portion by combining the single path tracking mode and multi-path tracking mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.