Traffic event detection in compressed videos
US7403664B2 · kind B2 · utility
12Cited by
1References
14Claims
0Family size
Assignee
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Key dates
| Filing date | Feb 26, 2004 |
| Grant date | Jul 22, 2008 |
| Priority date | — |
| Expiry date | Apr 21, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/20
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method detects traffic events in a compressed video. Feature vectors are extracted from the compressed video. The feature vector are provided to a Gaussian mixture hidden Markov model. Then, a maximum likelihood of the Gaussian mixture hidden Markov model is determined to classify the plurality of feature vector as traffic events.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.