Method and system for motion vector-based video monitoring and event categorization
US9158974B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 8, 2014 |
| Grant date | Oct 13, 2015 |
| Priority date | — |
| Expiry date | Oct 8, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/18
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A computer system processes a video stream to detect a start of a first motion event candidate in the video stream, and in response to detecting the start of the first motion event candidate in the video stream, initiates event recognition processing on a first video segment associated with the start of the first motion event candidate. Initiating the event recognition processing further includes: determining a motion track of a first object identified in the first video segment; generating a representative motion vector for the first motion event candidate based on the motion track of the first object; and sending the representative motion vector for the first motion event candidate to an event categorizer, where the event categorizer assigns a respective motion event category to the first motion event candidate based on the representative motion vector of the first motion event candidate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.