Automatically expanding the zoom capability of a wide-angle video camera
US7990422B2 · kind B2 · utility
78Cited by
43References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 19, 2005 |
| Grant date | Aug 2, 2011 |
| Priority date | — |
| Expiry date | Jun 10, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B13/19689
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system for automatically expanding the zoom capability of a wide-angle video camera using images from multiple camera locations. One preferred embodiment achieves this using images from the wide-angle video camera that are analyzed to identify regions of interest (RoI). Pan-Tilt-Zoom (PTZ) controls are then sent to aim slave cameras toward the RoI. Processing circuitry is then used to replace the RoI from the wide-angle images with the higher-resolution images from one of the slave cameras. In addition, motion-detecting software can be utilized to automatically detect, track, and/or zoom in on moving objects.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.