Method of triggering a detector to detect a moving feature within a video stream
US8184853B2 · kind B2 · utility
3Cited by
12References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 25, 2006 |
| Grant date | May 22, 2012 |
| Priority date | — |
| Expiry date | Sep 25, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T7/20
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Detectors capable of accurately detecting and tracking moving features of such as faces within a video stream are sometimes too slow to be run in real-time. The present invention rapidly scans video footage in real-time and generates a series of preattemptive triggers indicating the frames and locations within the frames at our deserving of further investigation by a sub real-time detector. The triggers are generated by looking for peaks in a time variant measure such as the amount of symmetry within a frame or portion of a frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.