Unusual event detection in wide-angle video (based on moving object trajectories)
US8866910B1 · kind B1 · utility
6Cited by
7References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 9, 2012 |
| Grant date | Oct 21, 2014 |
| Priority date | — |
| Expiry date | Oct 26, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V20/44
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Object images captured by a wide-angle camera are distorted due to the optical effects of the wide-angle lens. The disclosed innovations allow an automatic analysis on the corrected image distinguishing normal movement from an unusual event movement. The analysis is based on Markov Modeling on moving object trajectories and motion angles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.