Video analysis method and system
US10489654B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 4, 2017 |
| Grant date | Nov 26, 2019 |
| Priority date | — |
| Expiry date | Aug 10, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V20/44
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system processes a video stream to identify an activity performed by a subject. The system examines the video segment for the presence or absence of an object that is correlated with the activity. If the object is found, and if the object is positively correlated with the detected activity, a confidence level associated with detecting the activity is increase. If the object is found, and if it is negatively correlated with the activity, the confidence level is decreased. In other examples, absence of an object may be positively or negatively correlated with the activity. In one embodiment, the system may detect a number of alternative activities, and may use the presence or absence of various objects to determine the most likely activity being performed. In another embodiment, the system may use the presence of various objects to narrow the set of activities that are searched for.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.