Detecting anomalous trajectories in a video surveillance system
US8285060B2 · kind B2 · utility
36Cited by
23References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2009 |
| Grant date | Oct 9, 2012 |
| Priority date | — |
| Expiry date | Feb 13, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30241
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Techniques are disclosed for determining anomalous trajectories of objects tracked over a sequence of video frames. In one embodiment, a symbol trajectory may be derived from observing an object moving through a scene. The symbol trajectory represents semantic concepts extracted from the trajectory of the object. Whether the symbol trajectory is anomalous may be determined, based on previously observed symbol trajectories. A user may be alerted upon determining that the symbol trajectory is anomalous.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.