Method for automatic extraction of semantically significant events from video
US6721454B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 1, 1999 |
| Grant date | Apr 13, 2004 |
| Priority date | — |
| Expiry date | Jul 1, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99933
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Semantically meaningful events are detected in video with a multi-level technique. Video sequences are visually analyzed at the first level of the technique to detect shot boundaries, to measure color and texture of the content, and to detect objects in the content. At the second level of the technique, objects are classified and the content in each shot is summarized. At the third level of the technique, an event inference module infers events on the basis of temporal and spatial phenomena disclosed in the shot summaries. The technique may be extended to additional domains by incorporating additional domain related processes at the upper levels of the technique which utilize data produced at the first level of the technique by processes which are domain independent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.